title: Evidence for gravitational lensing of the cosmic microwave background polarization from cross-correlation with the cosmic infrared background.
abstract: We reconstruct the gravitational lensing convergence signal from cosmic microwave background (CMB) polarization data taken by the Polarbear experiment and cross-correlate it with cosmic infrared background maps from the Herschel satellite. From the cross spectra, we obtain evidence for gravitational lensing of the CMB polarization at a statistical significance of 4.0σ and indication of the presence of a lensing B-mode signal at a significance of 2.3σ. We demonstrate that our results are not biased by instrumental and astrophysical systematic errors by performing null tests, checks with simulated and real data, and analytical calculations. This measurement of polarization lensing, made via the robust cross-correlation channel, not only reinforces POLARBEAR auto-correlation measurements, but also represents one of the early steps towards establishing CMB polarization lensing as a powerful new probe of cosmology and astrophysics.
authors.affiliation: School of Physics and Astronomy, Cardiff University, Cardiff CF10 3XQ, United Kingdom.
authors.forename: P A R
authors.initials: PA
authors.lastname: Ade
authors.affiliation: The Graduate University for Advanced Studies, Hayama, Miura District, Kanagawa 240-0115, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Akiba
authors.affiliation: Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309, USA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA.
authors.forename: A E
authors.initials: AE
authors.lastname: Anthony
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: K
authors.initials: K
authors.lastname: Arnold
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: M
authors.initials: M
authors.lastname: Atlas
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: D
authors.initials: D
authors.lastname: Barron
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: D
authors.initials: D
authors.lastname: Boettger
authors.affiliation: Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 92093-0424, USA and Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.
authors.forename: J
authors.initials: J
authors.lastname: Borrill
authors.affiliation: California Institute of Technology, Pasadena, California, USA.
authors.forename: C
authors.initials: C
authors.lastname: Borys
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Chapman
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan and Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Chinone
authors.affiliation: Physics Department, McGill University, Montreal, QC H3A 0G4, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Dobbs
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: T
authors.initials: T
authors.lastname: Elleflot
authors.affiliation: Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 92093-0424, USA and Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.
authors.forename: J
authors.initials: J
authors.lastname: Errard
authors.affiliation: AstroParticule et Cosmologie, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France and International School for Advanced Studies (SISSA), Trieste 34014, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Fabbian
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: C
authors.initials: C
authors.lastname: Feng
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA and Department of Physics, Columbia University, New York, NY 10027, USA.
authors.forename: D
authors.initials: D
authors.lastname: Flanigan
authors.affiliation: Physics Department, McGill University, Montreal, QC H3A 0G4, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Gilbert
authors.affiliation: Rutherford Appleton Laboratory, STFC, Swindon, SN2 1SZ, United Kingdom.
authors.forename: W
authors.initials: W
authors.lastname: Grainger
authors.affiliation: Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309, USA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA and Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors.forename: N W
authors.initials: NW
authors.lastname: Halverson
authors.affiliation: The Graduate University for Advanced Studies, Hayama, Miura District, Kanagawa 240-0115, Japan and High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hasegawa
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hattori
authors.affiliation: The Graduate University for Advanced Studies, Hayama, Miura District, Kanagawa 240-0115, Japan and High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hazumi
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: W L
authors.initials: WL
authors.lastname: Holzapfel
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Hori
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA and Department of Physics, University of Oxford, Oxford OX1 2JD, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Howard
authors.affiliation: Physics Department, Austin College, Sherman, TX 75090, USA.
authors.forename: P
authors.initials: P
authors.lastname: Hyland
authors.affiliation: The Graduate University for Advanced Studies, Hayama, Miura District, Kanagawa 240-0115, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Inoue
authors.affiliation: Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309, USA and Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors.forename: G C
authors.initials: GC
authors.lastname: Jaehnig
authors.affiliation: Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Jaffe
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: B
authors.initials: B
authors.lastname: Keating
authors.affiliation: Physics Department, Princeton University, Princeton, NJ 08544, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Kermish
authors.affiliation: Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 92093-0424, USA.
authors.forename: R
authors.initials: R
authors.lastname: Keskitalo
authors.affiliation: Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 92093-0424, USA and Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.
authors.forename: T
authors.initials: T
authors.lastname: Kisner
authors.affiliation: AstroParticule et Cosmologie, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France.
authors.forename: M
authors.initials: M
authors.lastname: Le Jeune
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA and Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
authors.forename: A T
authors.initials: AT
authors.lastname: Lee
authors.affiliation: Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA.
authors.forename: E M
authors.initials: EM
authors.lastname: Leitch
authors.affiliation: Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA and Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
authors.forename: E
authors.initials: E
authors.lastname: Linder
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: M
authors.initials: M
authors.lastname: Lungu
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: F
authors.initials: F
authors.lastname: Matsuda
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Matsumura
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: X
authors.initials: X
authors.lastname: Meng
authors.affiliation: Observational Cosmology Laboratory, Code 665, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
authors.forename: N J
authors.initials: NJ
authors.lastname: Miller
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Morii
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: S
authors.initials: S
authors.lastname: Moyerman
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Myers
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: M
authors.initials: M
authors.lastname: Navaroli
authors.affiliation: Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nishino
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: H
authors.initials: H
authors.lastname: Paar
authors.affiliation: AstroParticule et Cosmologie, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France.
authors.forename: J
authors.initials: J
authors.lastname: Peloton
authors.affiliation: AstroParticule et Cosmologie, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France.
authors.forename: D
authors.initials: D
authors.lastname: Poletti
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA and Physics Department, Napa Valley College, Napa, CA 94558, USA.
authors.forename: E
authors.initials: E
authors.lastname: Quealy
authors.affiliation: Department of Electrical and Computer Engineering, University of California, San Diego, CA 92093, USA.
authors.forename: G
authors.initials: G
authors.lastname: Rebeiz
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: C L
authors.initials: CL
authors.lastname: Reichardt
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: P L
authors.initials: PL
authors.lastname: Richards
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
authors.forename: C
authors.initials: C
authors.lastname: Ross
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
authors.forename: K
authors.initials: K
authors.lastname: Rotermund
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: I
authors.initials: I
authors.lastname: Schanning
authors.affiliation: Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309, USA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA.
authors.forename: D E
authors.initials: DE
authors.lastname: Schenck
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA and Miller Institute for Basic Research in Science, University of California, Berkeley, CA 94720, USA.
authors.forename: B D
authors.initials: BD
authors.lastname: Sherwin
authors.affiliation: The Graduate University for Advanced Studies, Hayama, Miura District, Kanagawa 240-0115, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Shimizu
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: C
authors.initials: C
authors.lastname: Shimmin
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA and School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
authors.forename: M
authors.initials: M
authors.lastname: Shimon
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: P
authors.initials: P
authors.lastname: Siritanasak
authors.affiliation: Three-Speed Logic, Inc., Vancouver, B.C., V6A 2J8, Canada.
authors.forename: G
authors.initials: G
authors.lastname: Smecher
authors.affiliation: Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
authors.forename: H
authors.initials: H
authors.lastname: Spieler
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: N
authors.initials: N
authors.lastname: Stebor
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: B
authors.initials: B
authors.lastname: Steinbach
authors.affiliation: AstroParticule et Cosmologie, Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, France.
authors.forename: R
authors.initials: R
authors.lastname: Stompor
authors.affiliation: Department of Physics, University of California, Berkeley, CA 94720, USA.
authors.forename: A
authors.initials: A
authors.lastname: Suzuki
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan and Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Takakura
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Tikhomirov
authors.affiliation: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tomaru
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: B
authors.initials: B
authors.lastname: Wilson
authors.affiliation: Department of Physics, University of California, San Diego, CA 92093-0424, USA.
authors.forename: A
authors.initials: A
authors.lastname: Yadav
authors.affiliation: Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
authors.forename: O
authors.initials: O
authors.lastname: Zahn