Related papers: Can topological defects mimic the BICEP2 B-mode si…

Bipolar conduction asymmetries lead to ultra-high thermoelectric power factor

Low band gap thermoelectric materials suffer from bipolar effects at high temperatures, with increased electronic thermal conductivity and reduced Seebeck coefficient, leading to reduced power factor and low ZT figure of merit. In this work…

Materials Science · Physics 2022-03-14 Patrizio Graziosi , Zhen Li , Neophytos Neophytou

A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-Degree Scales with POLARBEAR

We report a measurement of the B-mode polarization power spectrum in the cosmic microwave background (CMB) using the POLARBEAR experiment in Chile. The faint B-mode polarization signature carries information about the Universe's entire…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-17 The POLARBEAR Collaboration , P. A. R. Ade , Y. Akiba , A. E. Anthony , K. Arnold , M. Atlas , D. Barron , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , M. Dobbs , T. Elleflot , J. Errard , G. Fabbian , C. Feng , D. Flanigan , A. Gilbert , W. Grainger , N. W. Halverson , M. Hasegawa , K. Hattori , M. Hazumi , W. L. Holzapfel , Y. Hori , J. Howard , P. Hyland , Y. Inoue , G. C. Jaehnig , A. H. Jaffe , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , M. Le Jeune , A. T. Lee , E. M. Leitch , E. Linder , M. Lungu , F. Matsuda , T. Matsumura , X. Meng , N. J. Miller , H. Morii , S. Moyerman , M. J. Myers , M. Navaroli , H. Nishino , H. Paar , J. Peloton , D. Poletti , E. Quealy , G. Rebeiz , C. L. Reichardt , P. L. Richards , C. Ross , I. Schanning , D. E. Schenck , B. D. Sherwin , A. Shimizu , C. Shimmin , M. Shimon , P. Siritanasak , G. Smecher , H. Spieler , N. Stebor , B. Steinbach , R. Stompor , A. Suzuki , S. Takakura , T. Tomaru , B. Wilson , A. Yadav , O. Zahn

Initial Performance of BICEP3: A Degree Angular Scale 95 GHz Band Polarimeter

BICEP3 is a $550~mm$ aperture telescope with cold, on-axis, refractive optics designed to observe at the $95~GHz$ band from the South Pole. It is the newest member of the BICEP/Keck family of inflationary probes specifically designed to…

Instrumentation and Methods for Astrophysics · Physics 2016-01-05 W. L. K. Wu , P. A. R. Ade , Z. Ahmed , K. D. Alexander , M. Amiri , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , R. Bowens-Rubin , I. Buder , E. Bullock , V. Buza , J. A. Connors , J. P. Filippini , S. Fliescher , J. A. Grayson , M. Halpern , S. A. Harrison , G. C. Hilton , V. V. Hristov , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. G. Megerian , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , C. Pryke , C. D. Reintsema , S. Richter , C. Sorensen , Z. K. Staniszewski , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. E. Tucker , A. D. Turner , A. G. Vieregg , A. C. Weber , D. V. Wiebe , J. Willmert , K. W. Yoon

Analysis of the Kamionkowski-Loeb method of reducing cosmic variance with CMB polarization

Part of the CMB polarization signal in the direction of galaxy clusters is produced by Thomson scattering of the CMB temperature quadrupole. In principle this allows measurement of the CMB power spectrum harmonic $C_2(z)$ with higher…

Astrophysics · Physics 2009-09-29 Jamie Portsmouth

BICEP/Keck and Cosmological Attractors

We discuss implications of the latest BICEP/Keck data release for inflationary models, with special emphasis on the cosmological attractors which can describe all presently available inflation-related observational data. These models are…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-28 Renata Kallosh , Andrei Linde

Constraints on Inflationary Gravitational Waves with Two Years of SPT-3G Data

We present a measurement of the $B$-mode polarization power spectrum of the cosmic microwave background anisotropies at 32 $\le$ $\ell$ $<$ 502 for three bands centered at 95, 150, and 220 GHz using data from the SPT-3G receiver on the…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-06 J. A. Zebrowski , C. L. Reichardt , A. J. Anderson , B. Ansarinejad , M. Archipley , L. Balkenhol , P. Barry , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , F. R. Bouchet , L. Bryant , E. Camphuis , J. E. Carlstrom , C. L. Chang , P. Chaubal , P. M. Chichura , A. Chokshi , T. -L. Chou , A. Coerver , T. M. Crawford , C. Daley , T. de Haan , K. R. Dibert , M. A. Dobbs , M. Doohan , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , K. Fichman , A. Foster , S. Galli , A. E. Gambrel , R. W. Gardner , F. Ge , N. Goeckner-Wald , R. Gualtieri , F. Guidi , S. Guns , N. W. Halverson , E. Hivon , G. P. Holder , W. L. Holzapfel , J. C. Hood , A. Hryciuk , N. Huang , F. Kéruzoré , A. R. Khalife , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , K. Levy , Y. Li , A. E. Lowitz , C. Lu , G. P. Lynch , A. Maniyar , E. S. Martsen , F. Menanteau , M. Millea , J. Montgomery , Y. Nakato , T. Natoli , G. I. Noble , Y. Omori , A. Ouellette , Z. Pan , P. Paschos , K. A. Phadke , A. W. Pollak , K. Prabhu , W. Quan , S. Raghunathan , M. Rahimi , A. Rahlin , M. Rouble , J. E. Ruhl , A. Simpson , E. Schiappucci , J. A. Sobrin , A. A. Stark , J. Stephen , C. Tandoi , B. Thorne , C. Trendafilova , C. Umilta , J. D. Vieira , A. G. Vieregg , A. Vitrier , Y. Wan , N. Whitehorn , W. L. K. Wu , M. R. Young

Hint of relic gravitational waves in the Planck and WMAP data

Relic gravitational waves (RGWs) leave well-understood imprints on the anisotropies in the temperature and polarization of cosmic microwave background (CMB) radiation. In the TT and TE information channels, which have been well observed by…

Cosmology and Nongalactic Astrophysics · Physics 2014-03-20 Wen Zhao , Cheng Cheng , Qing-Guo Huang

Systematic Errors in Cosmic Microwave Background Interferometry

Cosmic microwave background (CMB) polarization observations will require superb control of systematic errors in order to achieve their full scientific potential, particularly in the case of attempts to detect the B modes that may provide a…

Astrophysics · Physics 2008-11-26 Emory F. Bunn

Planck 2018 results. VII. Isotropy and Statistics of the CMB

Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with previous studies using the 2013 and 2015 data releases. In…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-16 Planck Collaboration , Y. Akrami , M. Ashdown , J. Aumont , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , K. Benabed , M. Bersanelli , P. Bielewicz , J. J. Bock , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , B. Casaponsa , H. C. Chiang , L. P. L. Colombo , C. Combet , D. Contreras , B. P. Crill , P. de Bernardis , G. de Zotti , J. Delabrouille , J. -M. Delouis , E. Di Valentino , J. M. Diego , O. Doré , M. Douspis , A. Ducout , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , Y. Fantaye , R. Fernandez-Cobos , F. Finelli , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frolov , S. Galeotta , S. Galli , K. Ganga , R. T. Génova-Santos , M. Gerbino , T. Ghosh , J. González-Nuevo , K. M. Górski , A. Gruppuso , J. E. Gudmundsson , J. Hamann , W. Handley , F. K. Hansen , D. Herranz , E. Hivon , Z. Huang , A. H. Jaffe , W. C. Jones , E. Keihänen , R. Keskitalo , K. Kiiveri , J. Kim , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , M. Le Jeune , F. Levrier , M. Liguori , P. B. Lilje , V. Lindholm , M. López-Caniego , Y. -Z. Ma , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , A. Marcos-Caballero , M. Maris , P. G. Martin , E. Martínez-González , S. Matarrese , N. Mauri , J. D. McEwen , P. R. Meinhold , A. Mennella , M. Migliaccio , M. -A. Miville-Deschênes , D. Molinari , A. Moneti , L. Montier , G. Morgante , A. Moss , P. Natoli , L. Pagano , D. Paoletti , B. Partridge , F. Perrotta , V. Pettorino , F. Piacentini , G. Polenta , J. -L. Puget , J. P. Rachen , M. Reinecke , M. Remazeilles , A. Renzi , G. Rocha , C. Rosset , G. Roudier , J. A. Rubiño-Martín , B. Ruiz-Granados , L. Salvati , M. Savelainen , D. Scott , E. P. S. Shellard , C. Sirignano , R. Sunyaev , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , M. Tenti , L. Toffolatti , M. Tomasi , T. Trombetti , L. Valenziano , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , N. Vittorio , B. D. Wandelt , I. K. Wehus , A. Zacchei , J. P. Zibin , A. Zonca

Weak lensing of CMB by cosmic (super-)strings

We study the effect of weak lensing by cosmic (super-)strings on the anisotropies of cosmic microwave background (CMB). In developing a method to calculate the lensing convergence field due to strings, and thereby temperature and…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-19 Daisuke Yamauchi , Keitaro Takahashi , Yuuiti Sendouda , Chul-Moon Yoo

Joint Bayesian estimation of tensor and lensing B-modes in the power spectrum of CMB polarization data

We investigate the performance of a simple Bayesian fitting approach to correct the cosmic microwave background (CMB) B-mode polarization for gravitational lensing effects in the recovered probability distribution of the tensor-to-scalar…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-28 M. Remazeilles , C. Dickinson , H. K. Eriksen , I. K. Wehus

WMAP anomaly : Weak lensing in disguise

Statistical isotropy (SI) has been one of the simplifying assumptions in cosmological model building. Experiments like WMAP and PLANCK are attempting to test this assumption by searching for specific signals in the Cosmic Microwave…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-21 Aditya Rotti , Moumita Aich , Tarun Souradeep

A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing

We present a constraint on the tensor-to-scalar ratio, $r$, derived from measurements of cosmic microwave background (CMB) polarization $B$-modes with "delensing," whereby the uncertainty on $r$ contributed by the sample variance of the…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-02 BICEP/Keck , SPTpol Collaborations , : , P. A. R. Ade , Z. Ahmed , M. Amiri , A. J. Anderson , J. E. Austermann , J. S. Avva , D. Barkats , R. Basu Thakur , J. A. Beall , A. N. Bender , B. A. Benson , F. Bianchini , C. A. Bischoff , L. E. Bleem , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. E. Carlstrom , C. L. Chang , J. R. Cheshire , H. C. Chiang , T-L. Chou , R. Citron , J. Connors , C. Corbett Moran , J. Cornelison , T. M. Crawford , A. T. Crites , M. Crumrine , A. Cukierman , T. de Haan , M. Dierickx , M. A. Dobbs , L. Duband , W. Everett , S. Fatigoni , J. P. Filippini , S. Fliescher , J. Gallicchio , E. M. George , T. St. Germaine , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , N. Gupta , G. Hall , M. Halpern , N. W. Halverson , S. Harrison , S. Henderson , J. W. Henning , S. R. Hildebrandt , G. C. Hilton , G. P. Holder , W. L. Holzapfel , J. D. Hrubes , N. Huang , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , L. Knox , J. M. Kovac , C. L. Kuo , K. Lau , A. T. Lee , E. M. Leitch , D. Li , A. Lowitz , A. Manzotti , J. J. McMahon , K. G. Megerian , S. S. Meyer , M. Millea , L. M. Mocanu , L. Moncelsi , J. Montgomery , A. Nadolski , T. Namikawa , T. Natoli , C. B. Netterfield , H. T. Nguyen , J. P. Nibarger , G. Noble , V. Novosad , R. O'Brient , R. W. Ogburn , Y. Omori , S. Padin , S. Palladino , S. Patil , T. Prouve , C. Pryke , B. Racine , C. L. Reichardt , C. D. Reintsema , S. Richter , J. E. Ruhl , B. R. Saliwanchik , K. K. Schaffer , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , C. Sievers , G. Smecher , A. Soliman , A. A. Stark , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umiltà , T. Veach , J. D. Vieira , A. G. Vieregg , A. Wandui , G. Wang , A. C. Weber , N. Whitehorn , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , V. Yefremenko , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang

BICEP/Keck XXI: Constraints on Early-Universe Parity Violation from Multipole-Dependent Birefringence

We present the first constraints on multipole-dependent cosmic birefringence using CMB polarization data from the BK18 dataset, which combines observations from BICEP2, Keck Array, and BICEP3 at frequencies of 95, 150, and 220 GHz. Photon…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-10 Keck Collaboration , P. A. R. Ade , Zeeshan Ahmed , Mandana Amiri , Denis Barkats , Ritoban Basu Thakur , Colin A. Bischoff , Dominic Beck , James J. Bock , Hans Boenish , Victor Buza , Brianna Cantrall , James R. Cheshire , Jake Connors , James Cornelison , Michael Crumrine , Ari Jozef Cukierman , Edward Denison , Lionel Duband , Michael Echter , Miranda Eiben , Brodi D. Elwood , Sofia Fatigoni , Jeffrey P. Filippini , Antonio Fortes , Min Gao , Christos Giannakopoulos , Neil Goeckner-Wald , David C. Goldfinger , Stephen Gratton , James A. Grayson , Annsley Greathouse , Paul K. Grimes , Grantland Hall , George Halal , Mark Halpern , Emma Hand , Sam A. Harrison , Shawn Henderson , Thuong Hoang , Johannes Hubmayr , Howard Hui , Kent D. Irwin , Jae Hwan Kang , Kirit S. Karkare , Sinan Kefeli , J. M. Kovac , Chao-Lin Kuo , Kekoa Lasko , King Lau , Margaret Lautzenhiser , Amber Lennox , Tongtian Liu , Scott Mackey , Nolan Maher , Koko G. Megerian , Lorenzo Minutolo , Lorenzo Moncelsi , Yuka Nakato , H. T. Nguyen , Roger O'Brient , Scott Paine , Anika Patel , Matthew A. Petroff , Anna R. Polish , Thomas Prouve , Clement Pryke , Carl D. Reintsema , Steffen Richter , Thibault Romand , Maria Salatino , Alessandro Schillaci , Benjamin Schmitt , Robert Schwarz , Chris D. Sheehy , Baibhav Singari , Ahmed Soliman , Tyler St Germaine , Aaron Steiger , Bryan Steinbach , Rashmi Sudiwala , Grant Teply , Keith L. Thompson , Carole Tucker , Anthony D. Turner , Clara Vergès , Abigail G. Vieregg , Albert Wandui , Alexis C. Weber , Justin Willmert , Chin Lin Wong , Wai Ling K. Wu , Hung-I Yang , Cyndia Yu , Lingzhen Zeng , Cheng Zhang , Silvia Zhang

Probing the primordial Universe from the low-multipole CMB data

Since the temperature fluctuations in cosmic microwave background (CMB) on large-angular scales probe length scales that were super-horizon sized at photon decoupling and hence insensitive to microphysical processes, the low-multipole CMB…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-30 Cheng Cheng , Qing-Guo Huang

Planck intermediate results. XLI. A map of lensing-induced B-modes

The secondary cosmic microwave background (CMB) $B$-modes stem from the post-decoupling distortion of the polarization $E$-modes due to the gravitational lensing effect of large-scale structures. These lensing-induced $B$-modes constitute…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-14 Planck Collaboration , P. A. R. Ade , N. Aghanim , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , E. Battaner , K. Benabed , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , A. Catalano , H. C. Chiang , P. R. Christensen , D. L. Clements , S. Colombi , L. P. L. Colombo , C. Combet , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. J. Davis , P. de Bernardis , G. de Zotti , J. Delabrouille , C. Dickinson , J. M. Diego , O. Doré , A. Ducout , X. Dupac , F. Elsner , T. A. Enßlin , H. K. Eriksen , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , S. Galeotta , S. Galli , K. Ganga , T. Ghosh , M. Giard , Y. Giraud-Héraud , E. Gjerløw , J. González-Nuevo , K. M. Górski , A. Gruppuso , J. E. Gudmundsson , D. L. Harrison , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , A. Hornstrup , W. Hovest , G. Hurier , A. H. Jaffe , W. C. Jones , E. Keihänen , R. Keskitalo , T. S. Kisner , J. Knoche , L. Knox , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , R. Leonardi , F. Levrier , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , B. Maffei , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , P. R. Meinhold , A. Melchiorri , A. Mennella , M. Migliaccio , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , D. Novikov , I. Novikov , L. Pagano , F. Pajot , D. Paoletti , F. Pasian , G. Patanchon , O. Perdereau , L. Perotto , V. Pettorino , F. Piacentini , M. Piat , E. Pierpaoli , E. Pointecouteau , G. Polenta , G. W. Pratt , J. P. Rachen , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , G. Roudier , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , D. Scott , L. D. Spencer , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , J. Tuovinen , L. Valenziano , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , L. A. Wade , B. D. Wandelt , I. K. Wehus , D. Yvon , A. Zacchei , A. Zonca

Topological Defect Models of Structure Formation After the COBE Discovery of CMB Anisotropies

The COBE satellite has discovered anisotropies in the cosmic microwave background (CMB) consistent with a scale invariant spectrum of density perturbations. As reviewed in this lecture, topological defect models of structure formation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert H. Brandenberger

Viability of the matter bounce scenario in Loop Quantum Cosmology from BICEP2 last data

The CMB map provided by the Planck project constrains the value of the ratio of tensor-to-scalar perturbations, namely $r$, to be smaller than $0.11$ (95% CL). This bound rules out the simplest models of inflation. However, recent data from…

General Relativity and Quantum Cosmology · Physics 2014-08-14 Jaume de Haro , Jaume Amorós

Directional Variations of Cosmological Parameters from the Planck CMB Data

Recent observations suggest that there are violations of the isotropy of the universe at large scales, an important part of the cosmological principle. In this paper, we use the Cosmic Microwave Background (CMB) data to search for spatial…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-20 Shek Yeung , Ming-Chung Chu

Constraints on Primordial Magnetic Fields from Planck combined with the South Pole Telescope CMB B-mode polarization measurements

A primordial magnetic field (PMF) present before recombination can leave specific signatures on the cosmic microwave background (CMB) fluctuations. Of particular importance is its contribution to the B-mode polarization power spectrum.…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-15 Alex Zucca , Yun Li , Levon Pogosian