Searching for anisotropic cosmic birefringence with polarization data from SPTpol

Bianchini, F.; Wu, W.  L. K.; Ade, P.  A. R.; Anderson, A.  J.; Austermann, J.  E.; Avva, J.  S.; Balkenhol, L.; Baxter, E.; Beall, J.  A.; Bender, A.  N.; Benson, B.  A.; Bleem, L.  E.; Carlstrom, J.  E.; Chang, C.  L.; Chaubal, P.; Chiang, H.  C.; Chou, T.  L.; Citron, R.; Corbett Moran, C.; Crawford, T.  M.; Crites, A.  T.; de Haan, T.; Dobbs, M.  A.; Everett, W.; Gallicchio, J.; George, E.  M.; Gilbert, A.; Gupta, N.; Halverson, N.  W.; Henning, J.  W.; Hilton, G.  C.; Holder, G.  P.; Holzapfel, W.  L.; Hrubes, J.  D.; Huang, N.; Hubmayr, J.; Irwin, K.  D.; Knox, L.; Lee, A.  T.; Li, D.; Lowitz, A.; Manzotti, A.; McMahon, J.  J.; Meyer, S.  S.; Millea, M.; Mocanu, L.  M.; Montgomery, J.; Nadolski, A.; Natoli, T.; Nibarger, J.  P.; Noble, G.; Novosad, V.; Omori, Y.; Padin, S.; Patil, S.; Pryke, C.; Reichardt, C.  L.; Ruhl, J.  E.; Saliwanchik, B.  R.; Schaffer, K.  K.; Sievers, C.; Simard, G.; Smecher, G.; Stark, A.  A.; Story, K.  T.; Tucker, C.; Vanderlinde, K.; Veach, T.; Vieira, J.  D.; Wang, G.; Whitehorn, N.; Yefremenko, V.

doi:10.1103/physrevd.102.083504

Title: Searching for anisotropic cosmic birefringence with polarization data from SPTpol

Abstract

We present a search for anisotropic cosmic birefringence in 500 deg2 of southern sky observed at 150 GHz with the SPTpol camera on the South Pole Telescope. We reconstruct a map of cosmic polarization rotation anisotropies using higher-order correlations between the observed cosmic microwave background (CMB) E and B fields. We then measure the angular power spectrum of this map, which is found to be consistent with zero. The non-detection is translated into an upper limit on the amplitude of the scale-invariant cosmic rotation power spectrum, L(L+1)CααL/2π<0.10×10-4 rad2 (0.033 deg2, 95% C.L.). This upper limit can be used to place constraints on the strength of primordial magnetic fields, B1Mpc<17nG (95% C.L.), and on the coupling constant of the Chern-Simons electromagnetic term gaγ<4.0×10-2/HI (95% C.L.), where HI is the inflationary Hubble scale. For the first time, we also cross-correlate the CMB temperature fluctuations with the reconstructed rotation angle map, a signal expected to be non-vanishing in certain theoretical scenarios, and find no detectable signal. We perform a suite of systematics and consistency checks and find no evidence for contamination.

Authors:: Bianchini, F.; Wu, W. L. K.; Ade, P. A. R.; Anderson, A. J.; Austermann, J. E.; Avva, J. S.; Balkenhol, L.; Baxter, E.; Beall, J. A.; Bender, A. N.; Benson, B. A.; Bleem, L. E.; Carlstrom, J. E.; Chang, C. L.; Chaubal, P.; Chiang, H. C.; Chou, T. L.; Citron, R.; Corbett Moran, C.; Crawford, T. M. more »« less

Publication Date:: Fri Oct 02 00:00:00 EDT 2020

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Nanoscale Materials (CNM); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Kavli Foundation; Gordon and Betty Moore Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES)

Contributing Org.:: SPT Collaboration

OSTI Identifier:: 1637634

Alternate Identifier(s):: OSTI ID: 1774113; OSTI ID: 1779815

Report Number(s):: arXiv:2006.08061; FERMILAB-PUB-20-264-AE
Journal ID: ISSN 2470-0010; oai:inspirehep.net:1801217; TRN: US2201646

Grant/Contract Number:: AC02-07CH11359; PLR-1248097; OPP-1852617; PHY-1125897; GBMF 947; AC02-05CH11231; AC02-06CH11357; AC02-76SF00515; De-AC02-07CH11359; FT150100074

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 102; Journal Issue: 8; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Bianchini, F., Wu, W.  L. K., Ade, P.  A. R., Anderson, A.  J., Austermann, J.  E., Avva, J.  S., Balkenhol, L., Baxter, E., Beall, J.  A., Bender, A.  N., Benson, B.  A., Bleem, L.  E., Carlstrom, J.  E., Chang, C.  L., Chaubal, P., Chiang, H.  C., Chou, T.  L., Citron, R., Corbett Moran, C., Crawford, T.  M., Crites, A.  T., de Haan, T., Dobbs, M.  A., Everett, W., Gallicchio, J., George, E.  M., Gilbert, A., Gupta, N., Halverson, N.  W., Henning, J.  W., Hilton, G.  C., Holder, G.  P., Holzapfel, W.  L., Hrubes, J.  D., Huang, N., Hubmayr, J., Irwin, K.  D., Knox, L., Lee, A.  T., Li, D., Lowitz, A., Manzotti, A., McMahon, J.  J., Meyer, S.  S., Millea, M., Mocanu, L.  M., Montgomery, J., Nadolski, A., Natoli, T., Nibarger, J.  P., Noble, G., Novosad, V., Omori, Y., Padin, S., Patil, S., Pryke, C., Reichardt, C.  L., Ruhl, J.  E., Saliwanchik, B.  R., Schaffer, K.  K., Sievers, C., Simard, G., Smecher, G., Stark, A.  A., Story, K.  T., Tucker, C., Vanderlinde, K., Veach, T., Vieira, J.  D., Wang, G., Whitehorn, N., and Yefremenko, V. Searching for anisotropic cosmic birefringence with polarization data from SPTpol.  United States: N. p., 2020. 
Web.  doi:10.1103/physrevd.102.083504.

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                    Bianchini, F., Wu, W.  L. K., Ade, P.  A. R., Anderson, A.  J., Austermann, J.  E., Avva, J.  S., Balkenhol, L., Baxter, E., Beall, J.  A., Bender, A.  N., Benson, B.  A., Bleem, L.  E., Carlstrom, J.  E., Chang, C.  L., Chaubal, P., Chiang, H.  C., Chou, T.  L., Citron, R., Corbett Moran, C., Crawford, T.  M., Crites, A.  T., de Haan, T., Dobbs, M.  A., Everett, W., Gallicchio, J., George, E.  M., Gilbert, A., Gupta, N., Halverson, N.  W., Henning, J.  W., Hilton, G.  C., Holder, G.  P., Holzapfel, W.  L., Hrubes, J.  D., Huang, N., Hubmayr, J., Irwin, K.  D., Knox, L., Lee, A.  T., Li, D., Lowitz, A., Manzotti, A., McMahon, J.  J., Meyer, S.  S., Millea, M., Mocanu, L.  M., Montgomery, J., Nadolski, A., Natoli, T., Nibarger, J.  P., Noble, G., Novosad, V., Omori, Y., Padin, S., Patil, S., Pryke, C., Reichardt, C.  L., Ruhl, J.  E., Saliwanchik, B.  R., Schaffer, K.  K., Sievers, C., Simard, G., Smecher, G., Stark, A.  A., Story, K.  T., Tucker, C., Vanderlinde, K., Veach, T., Vieira, J.  D., Wang, G., Whitehorn, N., & Yefremenko, V. Searching for anisotropic cosmic birefringence with polarization data from SPTpol.  United States.  https://doi.org/10.1103/physrevd.102.083504

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                    Bianchini, F., Wu, W.  L. K., Ade, P.  A. R., Anderson, A.  J., Austermann, J.  E., Avva, J.  S., Balkenhol, L., Baxter, E., Beall, J.  A., Bender, A.  N., Benson, B.  A., Bleem, L.  E., Carlstrom, J.  E., Chang, C.  L., Chaubal, P., Chiang, H.  C., Chou, T.  L., Citron, R., Corbett Moran, C., Crawford, T.  M., Crites, A.  T., de Haan, T., Dobbs, M.  A., Everett, W., Gallicchio, J., George, E.  M., Gilbert, A., Gupta, N., Halverson, N.  W., Henning, J.  W., Hilton, G.  C., Holder, G.  P., Holzapfel, W.  L., Hrubes, J.  D., Huang, N., Hubmayr, J., Irwin, K.  D., Knox, L., Lee, A.  T., Li, D., Lowitz, A., Manzotti, A., McMahon, J.  J., Meyer, S.  S., Millea, M., Mocanu, L.  M., Montgomery, J., Nadolski, A., Natoli, T., Nibarger, J.  P., Noble, G., Novosad, V., Omori, Y., Padin, S., Patil, S., Pryke, C., Reichardt, C.  L., Ruhl, J.  E., Saliwanchik, B.  R., Schaffer, K.  K., Sievers, C., Simard, G., Smecher, G., Stark, A.  A., Story, K.  T., Tucker, C., Vanderlinde, K., Veach, T., Vieira, J.  D., Wang, G., Whitehorn, N., and Yefremenko, V. Fri .  
"Searching for anisotropic cosmic birefringence with polarization data from SPTpol".  United States.  https://doi.org/10.1103/physrevd.102.083504.  https://www.osti.gov/servlets/purl/1637634.

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@article{osti_1637634,

  title        = {Searching for anisotropic cosmic birefringence with polarization data from SPTpol},

  author       = {Bianchini, F. and Wu, W.  L. K. and Ade, P.  A. R. and Anderson, A.  J. and Austermann, J.  E. and Avva, J.  S. and Balkenhol, L. and Baxter, E. and Beall, J.  A. and Bender, A.  N. and Benson, B.  A. and Bleem, L.  E. and Carlstrom, J.  E. and Chang, C.  L. and Chaubal, P. and Chiang, H.  C. and Chou, T.  L. and Citron, R. and Corbett Moran, C. and Crawford, T.  M. and Crites, A.  T. and de Haan, T. and Dobbs, M.  A. and Everett, W. and Gallicchio, J. and George, E.  M. and Gilbert, A. and Gupta, N. and Halverson, N.  W. and Henning, J.  W. and Hilton, G.  C. and Holder, G.  P. and Holzapfel, W.  L. and Hrubes, J.  D. and Huang, N. and Hubmayr, J. and Irwin, K.  D. and Knox, L. and Lee, A.  T. and Li, D. and Lowitz, A. and Manzotti, A. and McMahon, J.  J. and Meyer, S.  S. and Millea, M. and Mocanu, L.  M. and Montgomery, J. and Nadolski, A. and Natoli, T. and Nibarger, J.  P. and Noble, G. and Novosad, V. and Omori, Y. and Padin, S. and Patil, S. and Pryke, C. and Reichardt, C.  L. and Ruhl, J.  E. and Saliwanchik, B.  R. and Schaffer, K.  K. and Sievers, C. and Simard, G. and Smecher, G. and Stark, A.  A. and Story, K.  T. and Tucker, C. and Vanderlinde, K. and Veach, T. and Vieira, J.  D. and Wang, G. and Whitehorn, N. and Yefremenko, V.},

  abstractNote = {We present a search for anisotropic cosmic birefringence in 500 deg2 of southern sky observed at 150 GHz with the SPTpol camera on the South Pole Telescope. We reconstruct a map of cosmic polarization rotation anisotropies using higher-order correlations between the observed cosmic microwave background (CMB) E and B fields. We then measure the angular power spectrum of this map, which is found to be consistent with zero. The non-detection is translated into an upper limit on the amplitude of the scale-invariant cosmic rotation power spectrum, L(L+1)CααL/2π<0.10×10-4 rad2 (0.033 deg2, 95% C.L.). This upper limit can be used to place constraints on the strength of primordial magnetic fields, B1Mpc<17nG (95% C.L.), and on the coupling constant of the Chern-Simons electromagnetic term gaγ<4.0×10-2/HI (95% C.L.), where HI is the inflationary Hubble scale. For the first time, we also cross-correlate the CMB temperature fluctuations with the reconstructed rotation angle map, a signal expected to be non-vanishing in certain theoretical scenarios, and find no detectable signal. We perform a suite of systematics and consistency checks and find no evidence for contamination.},

  doi          = {10.1103/physrevd.102.083504},

  journal      = {Physical Review D},

  number       = 8,

  volume       = 102,

  place        = {United States},

  year         = {Fri Oct 02 00:00:00 EDT 2020},

  month        = {Fri Oct 02 00:00:00 EDT 2020}

}

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Title: Searching for anisotropic cosmic birefringence with polarization data from SPTpol

Abstract

Citation Formats

Neutrino number asymmetry and cosmological birefringence journal, September 2007

Bias-hardened CMB lensing journal, February 2013

Baryon asymmetry and gravitational waves from pseudoscalar inflation journal, December 2017

Cross-correlation of cosmological birefringence with CMB temperature journal, August 2011

CMB Polarization B -mode Delensing with SPTpol and Herschel journal, August 2017

Constraining a spatially dependent rotation of the cosmic microwave background polarization journal, June 2009

A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg 2 of SPTpol Temperature and Polarization Data journal, October 2019

MEASUREMENTS OF SUB-DEGREE B -MODE POLARIZATION IN THE COSMIC MICROWAVE BACKGROUND FROM 100 SQUARE DEGREES OF SPTPOL DATA journal, July 2015

Measurements of E-Mode Polarization and Temperature-E-Mode Correlation in the Cosmic Microwave Background from 100 Square Degrees of Sptpol data journal, May 2015

A Measurement of the Cosmic Microwave Background Gravitational Lensing Potential from 100 Square Degrees of Sptpol data journal, August 2015

Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles journal, February 2015

The Polarbear-2 and the Simons Array Experiments journal, January 2016

Testing parity-violating physics from cosmic rotation power reconstruction journal, February 2017

The Simons Observatory: science goals and forecasts journal, February 2019

Natural inflation with pseudo Nambu-Goldstone bosons journal, December 1990

Axion dark matter detection with CMB polarization journal, July 2019

Planck intermediate results : XLIX. Parity-violation constraints from polarization data journal, December 2016

HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere journal, April 2005

POLOCALC: A Novel Method to Measure the Absolute Polarization Orientation of the Cosmic Microwave Background journal, May 2017

Constraints on direction-dependent cosmic birefringence from Planck polarization data journal, December 2017

emcee : The MCMC Hammer journal, March 2013

Advanced ACTPol Cryogenic Detector Arrays and Readout journal, March 2016

String axiverse journal, June 2010

CMB Faraday rotation as seen through the Milky Way journal, September 2013

Design and characterization of 90 GHz feedhorn-coupled TES polarimeter pixels in the SPTPol camera conference, October 2012

Massive neutrinos and magnetic fields in the early universe journal, February 2010

Statistical simulations of the dust foreground to cosmic microwave background polarization (Corrigendum) journal, October 2018

How to Derotate the Cosmic Microwave Background Polarization journal, March 2009

Quintessence and the Rest of the World: Suppressing Long-Range Interactions journal, October 1998

Revisiting the Bound on Axion-Photon Coupling from Globular Clusters journal, November 2014

Planck 2015 results : XIII. Cosmological parameters journal, September 2016

Magnetic Fields in the Large-Scale Structure of the Universe journal, October 2011

New exclusion limits on scalar and pseudoscalar axionlike particles from light shining through a wall journal, November 2015

Early Dark Energy can Resolve the Hubble Tension journal, June 2019

Inflation-produced, large-scale magnetic fields journal, May 1988

Simultaneous determination of the cosmic birefringence and miscalibrated polarization angles from CMB experiments journal, August 2019

Depolarization of the cosmic microwave background by a primordial magnetic field and its effect upon temperature anisotropy journal, February 1997

Recent discoveries from the cosmic microwave background: a review of recent progress journal, February 2018

The 10 Meter South Pole Telescope journal, May 2011

Future CMB constraints on cosmic birefringence and implications for fundamental physics journal, July 2019

The Impact of Atmospheric Fluctuations on Degree‐Scale Imaging of the Cosmic Microwave Background journal, November 2000

Bayesian delensing of CMB temperature and polarization journal, July 2019

Magnetic fields in the early Universe journal, July 2001

First CMB constraints on direction-dependent cosmological birefringence from WMAP-7 journal, November 2012

Cosmic Microwave Background Polarization Signals from Tangled Magnetic Fields journal, August 2001

SciPy 1.0: fundamental algorithms for scientific computing in Python journal, February 2020

Axions in string theory journal, June 2006

Pseudoscalar Perturbations and Polarization of the Cosmic Microwave Background journal, July 2009

Cosmological magnetic fields: their generation, evolution and observation journal, June 2013

BICEP3 performance overview and planned Keck Array upgrade conference, July 2016

Faraday Rotation of Microwave Background Polarization by a Primordial Magnetic Field journal, September 1996

Fractional polarization of extragalactic sources in the 500 deg2 SPTpol survey journal, October 2019

BICEP2 / Keck Array IX: New bounds on anisotropies of CMB polarization rotation and implications for axionlike particles and primordial magnetic fields journal, November 2017

Likelihood analysis of CMB temperature and polarization power spectra journal, May 2008

Absolute calibration of the polarisation angle for future CMB B-mode experiments from current and future measurements of the Crab nebula journal, January 2020

Lensed CMB simulation and parameter estimation journal, April 2005

New CAST limit on the axion–photon interaction journal, May 2017

Searching for primordial magnetism with multifrequency cosmic microwave background experiments journal, January 2014

Possibility of Observing Dark Matter via the Gyromagnetic Faraday Effect journal, January 2008

Impact of Cluster Physics on the Sunyaev-Zel'Dovich Power Spectrum journal, November 2010

POLARBEAR constraints on cosmic birefringence and primordial magnetic fields journal, December 2015

Maximum a posteriori CMB lensing reconstruction journal, September 2017

Dark Energy from the String Axiverse journal, December 2014

Derotation of the cosmic microwave background polarization: Full-sky formalism journal, July 2009

Searching for primordial magnetic fields with CMB B -modes journal, May 2018

Limits on a Lorentz- and parity-violating modification of electrodynamics journal, February 1990

A Measurement of Secondary Cosmic Microwave Background Anisotropies from the 2500 Square-Degree Spt-Sz Survey journal, January 2015

Cosmic birefringence test of the Hubble tension journal, June 2020

South Pole Telescope optics journal, January 2008

IPython: A System for Interactive Scientific Computing journal, January 2007

Atacama Cosmology Telescope: Constraints on cosmic birefringence journal, April 2020

Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol conference, October 2012

The type IIB string axiverse and its low-energy phenomenology journal, October 2012

Matplotlib: A 2D Graphics Environment journal, January 2007

Constraints on Primordial Gravitational Waves Using P l a n c k , WMAP, and New BICEP2/ K e c k Observations through the 2015 Season journal, November 2018

Cosmological 'seed' magnetic field from inflation journal, May 1992

The First Magnetic Fields journal, October 2011

Neutrino number asymmetry and cosmological birefringence
journal, September 2007

Bias-hardened CMB lensing
journal, February 2013

Baryon asymmetry and gravitational waves from pseudoscalar inflation
journal, December 2017

Cross-correlation of cosmological birefringence with CMB temperature
journal, August 2011

CMB Polarization B -mode Delensing with SPTpol and Herschel
journal, August 2017

Constraining a spatially dependent rotation of the cosmic microwave background polarization
journal, June 2009

A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg ² of SPTpol Temperature and Polarization Data
journal, October 2019

MEASUREMENTS OF SUB-DEGREE B -MODE POLARIZATION IN THE COSMIC MICROWAVE BACKGROUND FROM 100 SQUARE DEGREES OF SPTPOL DATA
journal, July 2015

Measurements of E-Mode Polarization and Temperature-E-Mode Correlation in the Cosmic Microwave Background from 100 Square Degrees of Sptpol data
journal, May 2015

A Measurement of the Cosmic Microwave Background Gravitational Lensing Potential from 100 Square Degrees of Sptpol data
journal, August 2015

Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
journal, February 2015

The Polarbear-2 and the Simons Array Experiments
journal, January 2016

Testing parity-violating physics from cosmic rotation power reconstruction
journal, February 2017

The Simons Observatory: science goals and forecasts
journal, February 2019

Natural inflation with pseudo Nambu-Goldstone bosons
journal, December 1990

Axion dark matter detection with CMB polarization
journal, July 2019

Planck intermediate results : XLIX. Parity-violation constraints from polarization data
journal, December 2016

HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere
journal, April 2005

POLOCALC: A Novel Method to Measure the Absolute Polarization Orientation of the Cosmic Microwave Background
journal, May 2017

Constraints on direction-dependent cosmic birefringence from Planck polarization data
journal, December 2017

`emcee` : The MCMC Hammer
journal, March 2013

Advanced ACTPol Cryogenic Detector Arrays and Readout
journal, March 2016

String axiverse
journal, June 2010

CMB Faraday rotation as seen through the Milky Way
journal, September 2013

Design and characterization of 90 GHz feedhorn-coupled TES polarimeter pixels in the SPTPol camera
conference, October 2012

Massive neutrinos and magnetic fields in the early universe
journal, February 2010

Statistical simulations of the dust foreground to cosmic microwave background polarization (Corrigendum)
journal, October 2018

How to Derotate the Cosmic Microwave Background Polarization
journal, March 2009

Quintessence and the Rest of the World: Suppressing Long-Range Interactions
journal, October 1998

Revisiting the Bound on Axion-Photon Coupling from Globular Clusters
journal, November 2014

Planck 2015 results : XIII. Cosmological parameters
journal, September 2016

Magnetic Fields in the Large-Scale Structure of the Universe
journal, October 2011

New exclusion limits on scalar and pseudoscalar axionlike particles from light shining through a wall
journal, November 2015

Early Dark Energy can Resolve the Hubble Tension
journal, June 2019

Inflation-produced, large-scale magnetic fields
journal, May 1988

Simultaneous determination of the cosmic birefringence and miscalibrated polarization angles from CMB experiments
journal, August 2019

Depolarization of the cosmic microwave background by a primordial magnetic field and its effect upon temperature anisotropy
journal, February 1997

Recent discoveries from the cosmic microwave background: a review of recent progress
journal, February 2018

The 10 Meter South Pole Telescope
journal, May 2011

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journal, July 2019

The Impact of Atmospheric Fluctuations on Degree‐Scale Imaging of the Cosmic Microwave Background
journal, November 2000

Bayesian delensing of CMB temperature and polarization
journal, July 2019

Magnetic fields in the early Universe
journal, July 2001

First CMB constraints on direction-dependent cosmological birefringence from WMAP-7
journal, November 2012

Cosmic Microwave Background Polarization Signals from Tangled Magnetic Fields
journal, August 2001

SciPy 1.0: fundamental algorithms for scientific computing in Python
journal, February 2020

Axions in string theory
journal, June 2006

Pseudoscalar Perturbations and Polarization of the Cosmic Microwave Background
journal, July 2009

Cosmological magnetic fields: their generation, evolution and observation
journal, June 2013

BICEP3 performance overview and planned Keck Array upgrade
conference, July 2016

Faraday Rotation of Microwave Background Polarization by a Primordial Magnetic Field
journal, September 1996

Fractional polarization of extragalactic sources in the 500 deg2 SPTpol survey
journal, October 2019

BICEP2 / Keck Array IX: New bounds on anisotropies of CMB polarization rotation and implications for axionlike particles and primordial magnetic fields
journal, November 2017

Likelihood analysis of CMB temperature and polarization power spectra
journal, May 2008

Absolute calibration of the polarisation angle for future CMB B-mode experiments from current and future measurements of the Crab nebula
journal, January 2020

Lensed CMB simulation and parameter estimation
journal, April 2005

New CAST limit on the axion–photon interaction
journal, May 2017

Searching for primordial magnetism with multifrequency cosmic microwave background experiments
journal, January 2014

Possibility of Observing Dark Matter via the Gyromagnetic Faraday Effect
journal, January 2008

Impact of Cluster Physics on the Sunyaev-Zel'Dovich Power Spectrum
journal, November 2010

POLARBEAR constraints on cosmic birefringence and primordial magnetic fields
journal, December 2015

Maximum a posteriori CMB lensing reconstruction
journal, September 2017

Dark Energy from the String Axiverse
journal, December 2014

Derotation of the cosmic microwave background polarization: Full-sky formalism
journal, July 2009

Searching for primordial magnetic fields with CMB B -modes
journal, May 2018

Limits on a Lorentz- and parity-violating modification of electrodynamics
journal, February 1990

A Measurement of Secondary Cosmic Microwave Background Anisotropies from the 2500 Square-Degree Spt-Sz Survey
journal, January 2015

Cosmic birefringence test of the Hubble tension
journal, June 2020

South Pole Telescope optics
journal, January 2008

IPython: A System for Interactive Scientific Computing
journal, January 2007

Atacama Cosmology Telescope: Constraints on cosmic birefringence
journal, April 2020

Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol
conference, October 2012

The type IIB string axiverse and its low-energy phenomenology
journal, October 2012

Matplotlib: A 2D Graphics Environment
journal, January 2007

Constraints on Primordial Gravitational Waves Using $P l a n c k$ , WMAP, and New BICEP2/ $K e c k$ Observations through the 2015 Season
journal, November 2018

Cosmological 'seed' magnetic field from inflation
journal, May 1992

The First Magnetic Fields
journal, October 2011

Current and Future Constraints on Primordial Magnetic Fields
journal, September 2017

Internal Delensing of Cosmic Microwave Background Polarization $B$ -Modes with the POLARBEAR Experiment
journal, April 2020

Axion cosmology
journal, July 2016