Title: Nature of Hydrogen Adsorption on Platinum in the Aqueous Phase

Abstract

Cosmic microwave background (CMB) lensing is an integrated effect whose kernel is greater than half the peak value in the range 1 < z < 5 . Measuring this effect offers a powerful tool to probe the large-scale structure of the Universe at high redshifts. With the increasing precision of ongoing CMB surveys, other statistics than the lensing power spectrum, in particular the lensing bispectrum, will be measured at high statistical significance. This will provide ways to improve the constraints on cosmological models and lift degeneracies. Following up on an earlier paper, we test analytical predictions of the CMB lensing bispectrum against full-sky lensing simulations, and we discuss their validity and limitation in detail. The tree-level prediction of perturbation theory agrees with the simulation only up to ℓ ~ 200 , but the one-loop order allows capturing the simulation results up to ℓ ~ 600 . We also show that analytical predictions based on fitting formulas for the matter bispectrum agree reasonably well with simulation results, although the precision of the agreement depends on the configurations and scales considered. For instance, the agreement is at the 10% level for the equilateral configuration at multipoles up to ℓ ~ 2000 ,more » but the difference in the squeezed limit increases to more than a factor of 2 at ℓ ~ 2000 . This discrepancy appears to come from limitations in the fitting formula of the matter bispectrum. We also find that the analytical prediction for the post-Born correction to the bispectrum is in good agreement with the simulation. We conclude by discussing the bispectrum prediction in some theories of modified gravity.« less

Authors:

Yang, Guoju ^[1]; Akhade, Sneha A.  ^[2];

• Search DOE PAGES for author "Akhade, Sneha A."
• Search DOE PAGES for ORCID "0000-0003-0024-2299"

Chen, Xi ^[1]; Liu, Yue  ^[1];

• Search DOE PAGES for author "Liu, Yue"
• Search DOE PAGES for ORCID "0000-0001-8939-0233"

Lee, Mal -Soon  ^[2];

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• Search DOE PAGES for ORCID "0000-0001-6851-177X"

Glezakou, Vassiliki -Alexandra  ^[2];

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• Search DOE PAGES for ORCID "0000-0001-6028-7021"

Rousseau, Roger  ^[2];

• Search DOE PAGES for author "Rousseau, Roger"
• Search DOE PAGES for ORCID "0000-0003-1947-0478"

Lercher, Johannes A.  ^[1]

• Search DOE PAGES for author "Lercher, Johannes A."
• Search DOE PAGES for ORCID "0000-0002-2495-1404"

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+ Show Author Affiliations

1. Technische Univ. Munchen, Garching bei Munchen (Germany)
2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:

Mon Dec 17 00:00:00 EST 2018

Research Org.:

Pacific Northwest National Laboratory (PNNL), Richland, WA (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)

OSTI Identifier:

1487149

Alternate Identifier(s):

OSTI ID: 1492743; OSTI ID: 1530437

Report Number(s):

PNNL-SA-134839
Journal ID: ISSN 1433-7851

Grant/Contract Number:  

AC05-76RL01830; AC02-05CH11231

Resource Type:

Accepted Manuscript

Journal Name:

Angewandte Chemie (International Edition)

Additional Journal Information:

Journal Name: Angewandte Chemie (International Edition); Journal Volume: 58; Journal Issue: 11; Journal ID: ISSN 1433-7851

Publisher:

Wiley

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; hydrogen; adsorption; water phase; platinum; hydrogen binding energy