A Probe of Primordial Gravity Waves and Vorticity

Abstract

A formalism for describing an all-sky map of the polarization of the cosmic microwave background is presented. The polarization pattern on the sky can be decomposed into two geometrically distinct components. One of these components is not coupled to density inhomogeneities. A non-zero amplitude for this component of polarization can only be caused by tensor or vector metric perturbations. This allows unambiguous identification of long-wavelength gravity waves or large-scale vortical flows at the time of last scattering.

8 pages, RevTeX

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• Batchelor, Saffman, and Kazantsev spectra in galactic small-scale dynamos
• From B Modes to Quantum Gravity and Unification of Forces
• Primordial Magnetism in CMB B-modes
• Oscillation in power spectrum of primordial gravitational wave as a signature of higher-order stringy corrections
• Approximate Consistency Condition from Running Spectral Index in Slow-Roll Inflationary Models
• Impact of Anisotropic Birefringence on Measuring Cosmic Microwave Background Lensing
• Testing inflationary consistency relations by the potential CMB observations
• TES imaging array technology for CLOVER
• Testing for spectral index variations in polarised CMB foregrounds
• Post-inflation increase of the cosmological tensor-to-scalar perturbation ratio
• The covariant perturbative approach to cosmic microwave background anisotropies
• Ambipolar diffusion in large Prandtl number turbulence
• A Jacobian elliptic single-field inflation
• Needlet thresholding methods in component separation
• Detecting primordial gravitational waves with circular polarization of the redshifted 21 cm line: II. Forecasts
• Gravitational waves and primordial black holes from chirality imbalanced QCD first-order phase transition with $\mathcal{P}$ and $\mathcal{C}\mathcal{P}$ violation
• Fingerprint of Galactic Loop I on polarized microwave foregrounds
• A global two-scale helicity proxy from $\pi$-ambiguous solar magnetic fields
• Generative Models of Multi-channel Data from a Single Example -- Application to Dust Emission
• Impact of Galactic dust non-Gaussianity on searches for B-modes from inflation
• Magnetic Helicity from Multipolar Regions on the Solar Surface
• B-mode constraints from Planck low multipole polarisation data
• Gravitational waves, CMB polarization, and the Hubble tension
• Deep 1.4-GHz observations of diffuse polarized emission
• Optimal and fast E/B separation with a dual messenger field
• Detection of relic gravitational waves in the CMB: Prospects for CMBPol mission
• Testing the ABS method with the simulated Planck temperature maps
• Cosmological Constraints on the Very Low Frequency Gravitational-Wave Background
• Primordial Gravitational Waves Spectrum in the Coupled-Scalar-Tachyon Bounce Universe
• How bad could it be? Modelling the 3D complexity of the polarised dust signal using moment expansion
• Numerical Relativity Investigation of the Effects of Gravitational Waves on the Inhomogeneity of the Universe
• Signatures of graviton masses on the CMB
• Systematic effects in polarizing Fourier transform spectrometers for cosmic microwave background observations
• Weak Lensing On the Celestial Sphere
• Optical Characterization of the Keck Array Polarimeter at the South Pole
• Unified approach to secondary effects on the CMB B-mode polarization
• Challenges in Cosmology from the Big Bang to Dark Energy, Dark Matter and Galaxy Formation
• Scalar-Tensor Anti-Cross-Correlation does not Help to Reconcile the Tension between BICEP2 and Planck
• Improving Constraints on Inflation with CMB Delensing
• Impact of half-wave plate systematics on the measurement of CMB $B$-mode polarization
• Phase Shift Sequences for an Adding Interferometer
• Quantifying the statistics of CMB-lensing-derived galaxy cluster mass measurements with simulations
• Space-based optical lattice clocks as gravitational wave detectors in search for new physics
• Scalar quadratic maximum likelihood estimators for the CMB cross power spectrum
• Helicity proxies from linear polarisation of solar active regions
• Demagnified GWs from Cosmological Double Neutron Stars and GW Foreground Cleaning Around 1Hz
• Cosmic Microwave Background Anisotropy numerical solution (CMBAns) I: An introduction to $C_l$ calculation
• Joint Bayesian estimation of tensor and lensing B-modes in the power spectrum of CMB polarization data
• Status of CMB Polarization Measurements from DASI and Other Experiments
• Gravitationally produced Top Quarks and the Stability of the Electroweak Vacuum During Inflation
• Fast scalar quadratic maximum likelihood estimators for the CMB B-mode power spectrum
• Probing inflation with CMB polarization : weak lensing effect on the covariance of CMB spectra
• Tensor-induced B modes with no temperature fluctuations
• Forecast of foreground cleaning strategies for AliCPT-1
• The Case of the Curved Universe: Open, Closed, or Flat?
• Polarization power spectra and dust cloud morphology
• Design of a testbed for the study of system interference in space CMB polarimetry
• Angular and Polarization Response of Multimode Sensors with Resistive-Grid Absorbers
• Higher-Order Gravitational Lensing Reconstruction using Feynman Diagrams
• Relic Cosmological Vector Fields and Inflationary Gravitational Waves
• Scalar-Induced Gravitational Waves in a $\Lambda$CDM Cosmology
• Detecting the tensor-to-scalar ratio with the pure pseudospectrum reconstruction of $B$-mode
• Constraints on cosmic birefringence using $E$-mode polarisation
• Thermal gravitational-wave background in the general pre-inflationary scenario
• Cross-correlation Power Spectra and Cosmic Birefringence of the CMB via Photon-neutrino Interaction
• Gravitational waves during inflation in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity
• A forecast of the sensitivity on the measurement of the optical depth to reionization with the GroundBIRD experiment
• Optimal strategy for polarization modulation in the LSPE-SWIPE experiment
• Development of Calibration Strategies for the Simons Observatory
• Effective Field Theory of Chiral Gravitational Waves
• The Simons Observatory: Assessing the Impact of Dust Complexity on the Recovery of Primordial $B$-modes
• Topological properties of the Cosmic Microwave Background polarization map
• New probe of inflationary gravitational waves: cross-correlations of lensed primary CMB B-modes with large-scale structure
• Design and characterization of a ground-based absolute polarization calibrator for use with polarization sensitive CMB experiments
• Estimates of unresolved point sources contribution to WMAP 5
• Investigating the Origin of CMB Large-Scale Features Using LiteBIRD and CMB-S4
• The effect of cosmic variance on the characteristics of dust polarization power spectra
• Signatures of Modified Dispersion Relation of Graviton in the Cosmic Microwave Background
• PROTOCALC, A W-band polarized calibrator for CMB Telescopes: application to Simons Observatory and CLASS
• A Lensing Reconstruction of Primordial Cosmic Microwave Background Polarization
• Broadband multi-layer anti-reflection coatings with mullite and duroid for half-wave plates and alumina filters for CMB polarimetry
• Smoothing methods comparison for CMB E- and B-mode separation
• Interferences in the Stochastic Gravitational Wave Background
• Gravitational Lensing of the CMB: a Feynman Diagram Approach
• Dark Radiation in Spectator Axion-Gauge Models
• Secondary B-mode polarization from Faraday rotation in clusters and galaxies
• Development of epoxy-based millimeter absorber with expanded polystyrenes and carbon black
• NP Stokes fields for radio astronomy
• Optimistic estimation on probing primordial gravitational waves with CMB B-mode polarization
• The parity-odd Intrinsic Bispectrum
• Modelling TES non-linearity induced by a rotating HWP in a CMB polarimeter
• Imaging parity-violation in the CMB
• Detection of extremely low frequency gravitational wave using gravitational lens
• Establishing the origin of CMB B-mode polarization
• Constraining primordial vector mode from B-mode polarization
• Constraining primordial tensor features with the anisotropies of the Cosmic Microwave Background
• Application of a helicity proxy to edge-on galaxies
• Particle Physics and the Cosmic Microwave Background
• Foreground removal from WMAP 7yr polarization maps using an MLP neural network
• Non-Gaussianity of Inflationary Gravitational Waves from the Field Equation
• A Possible Cosmological Explanation of why Supersymmetry is hiding at the LHC
• Measuring the primordial gravitational waves from cosmic microwave background and stochastic gravitational wave background observations
• Cosmic microwave background constraints on the tensor-to-scalar ratio
• Cosmic Microwave Background Polarization
• Cosmic Bandits: Exploration versus Exploitation in CMB B-Mode Experiments
• Confronting Inflation Models with the Coming Observations on Primordial Gravitational Waves
• Imprint of primordial gravitational wave with extremely low frequency on gravitational lens system
• Hemispheric handedness in the Galactic synchrotron polarization foreground
• Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission
• Prototype finline-coupled TES bolometers for CLOVER
• Red Density Perturbations and Inflationary Gravitational Waves
• The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey
• Primordial gravitational waves and curvature perturbations induced energy density perturbation
• Extended Delta-map: a map-based foreground removal method for CMB polarization observations
• Genus statistics on CMB polarization maps and cosmological parameters degeneracy
• Connecting Inflation to the NANOGrav 15-year Data Set via Massive Gravity
• Anti-reflection coating with mullite and Duroid for large-diameter cryogenic sapphire and alumina optics
• Automatic Nelson-Barr solutions to the strong CP puzzle
• Observable CMB B-modes from Cosmological Phase Transitions
• Impact of reionization history on constraining primordial gravitational waves in future all-sky cosmic microwave background experiments
• Confirmation of the detection of B-modes in the Planck polarization maps
• Polarization fraction of Planck Galactic cold clumps and forecasts for the Simons Observatory
• Magnetic field evolution in solar-type stars
• Detecting milli-Hz gravitational waves with optical resonators
• Probing pre-inflationary anisotropy with directional variations in the gravitational wave background
• Weak Gravitational Lensing of CMB - Revisit
• Approximate Likelihood Approaches for Detecting the Influence of Primordial Gravitational Waves in Cosmic Microwave Background Polarization
• Tensor Tilt from Primordial B-modes
• Non-Gaussianity of Tensor Induced Density Perturbations
• CMB delensing with deep learning
• The LSPE-Strip Pointing Reconstruction and Star Tracker
• Probing the primordial Universe from the low-multipole CMB data
• The non-thermal secondary CMB anisotropies from a cosmic distribution of radio galaxy lobes
• Delensing CMB B-modes using galaxy surveys: the effect of galaxy bias and matter clustering non-linearities
• How much will we learn from the CMB ?
• Fisher Matrix Optimization of Cosmic Microwave Background Interferometers
• Gravity of Cosmological Perturbations in the CMB
• Bias in the tensor-to-scalar ratio from self-interacting dark radiation
• SageNet: Fast Neural Network Emulation of the Stiff-amplified Gravitational Waves from Inflation
• Cosmic Microwave Background Tests of Inflation
• Signatures of primordial gravitational waves in matter power spectrum
• BB mode angular power spectrum of CMB from massive gravity
• Extragalactic Background Light: Measurements and Applications
• Cosmic backgrounds from the radio to the far-infrared: recent results and perspectives from cosmological and astrophysical surveys
• Slow roll inflation and BB mode angular power spectrum of CMB
• Excess B-modes extracted from the Planck polarization maps
• Cosmic Microwave Background Science at Commercial Airline Altitudes
• Preheating and gravitational waves in large-field hilltop inflation
• A quantisation procedure in the presence of an initial Kasner singularity: primordial gravitational waves from triaxially anisotropic pre-inflation
• The Design and Integrated Performance of SPT-3G
• Feedback-Controlled Beam Pattern Measurement Method Using a Power-Variable Calibration Source for Cosmic Microwave Background Telescopes
• Skew-spectra: a generalization to spin-$s$
• BICEP/Keck XXI: Constraints on Early-Universe Parity Violation from Multipole-Dependent Birefringence
• Cosmology in a Globally U(1) Symmetric Scalar-Tensor Gravity
• On the computational feasibility of Bayesian end-to-end analysis of LiteBIRD simulations within Cosmoglobe
• Design and Performance of 220 and 270 GHz Bandpass Filters for BICEP Array
• Quantum measurement systems and applications to particle physics and cosmology
• Cosmic Microwave Background: Past, Future, and Present
• Second Order perturbation Theory: A covariant approach involving a barotropic equation of state
• Inflationary Hubble Parameter from the Gravitational Wave Spectrum in the General Slow-roll Approximation
• The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes
• BrahMap: A scalable and modular map-making framework for the CMB experiments
• Bias on Tensor-to-Scalar Ratio Inference With Estimated Covariance Matrices
• The effect of a scanning flat fold mirror on a CMB B-mode experiment
• Covariant Quantum Gravitational Corrections to Scalar and Tensor Field Models
• What is the B mode in CMB polarization?
• Optimal map-making with singularities
• Detecting relic gravitational waves in the CMB: A statistical bias
• Mitigating point-source contamination in CMB polarization: a Generalized Point Spread Function fitting approach