Internal Delensing of Cosmic Microwave Background Polarization -Modes with the POLARBEAR Experiment
Journal Article
·
· Physical Review Letters
Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for internal delensing, and improve this result to 22% by applying for the first time an iterative maximum a posteriori delensing method. Our analysis demonstrates the capability of internal delensing as a means of improving constraints on inflationary models, paving the way for the optimal analysis of next-generation primordial B-mode experiments.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); European Research Council (ERC); JSPS KAKENHI; Moore Foundation; Simons Foundation; Templeton Foundation
- Contributing Organization:
- POLARBEAR Collaboration
- Grant/Contract Number:
- AC02-76SF00515; AST-0618398; AST-1212230; 77047; 616170; ST/P000525/1; 18K13558; 18H04347; 19H00674; JP26220709; JP15H05891; JP26800125; JP16K21744; JP18H05539; FT150100074; 4633; 034079; 58724; 1130777; 1171811; AC02-05CH11231
- OSTI ID:
- 1616762
- Alternate ID(s):
- OSTI ID: 1607960; OSTI ID: 1616130
- Journal Information:
- Physical Review Letters, Vol. 124, Issue 13; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 22 works
Citation information provided by
Web of Science
Web of Science
Similar Records
A Measurement of the CMB E-mode Angular Power Spectrum at Subdegree Scales from 670 Square Degrees of POLARBEAR Data
Constraints on axionlike polarization oscillations in the cosmic microwave background with POLARBEAR
POLARBEAR constraints on cosmic birefringence and primordial magnetic fields
Journal Article
·
Fri Nov 20 00:00:00 EST 2020
· The Astrophysical Journal (Online)
·
OSTI ID:1616762
+53 more
Constraints on axionlike polarization oscillations in the cosmic microwave background with POLARBEAR
Journal Article
·
Fri Aug 18 00:00:00 EDT 2023
· Physical Review. D.
·
OSTI ID:1616762
+28 more
POLARBEAR constraints on cosmic birefringence and primordial magnetic fields
Journal Article
·
Tue Dec 08 00:00:00 EST 2015
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
·
OSTI ID:1616762
+83 more