Emergent universe revisited through the CSL theory
arXiv:2108.01472 · doi:10.1140/epjc/s10052-021-09842-x
Abstract
In this work we analyze how the spectrum of primordial scalar perturbations is modified, within the emergent universe scenario, when a particular version of the Continuous Spontaneous Localization (CSL) model is incorporated as the generating mechanism of initial perturbations, providing also an explanation to the quantum-to-classical transition of such perturbations. On the other hand, a phase of super-inflation, prior to slow-roll inflation, is a characteristic feature of the emergent universe hypothesis. In recent works, it was shown that the super-inflation phase could generically induce a suppression of the temperature anisotropies of the CMB at large angular scales. We study here under what conditions the CSL maintains or modifies these characteristics of the emergent universe and their compatibility with the CMB observations.
arXiv comment15 pages, 5 figures. Some references added. Version accepted in EPJC
References in corpus (196)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Planck 2015 results. XIII. Cosmological parameters
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Efficient Computation of CMB anisotropies in closed FRW models
- The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
- Planck 2018 results. X. Constraints on inflation
- In the Realm of the Hubble tension a Review of Solutions
- Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
- Planck 2013 results. I. Overview of products and scientific results
- Planck 2018 results. I. Overview and the cosmological legacy of Planck
- The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
- Decoherence, the measurement problem, and interpretations of quantum mechanics
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Power Spectra and WMAP-Derived Parameters
- Tensions between the Early and the Late Universe
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- Cosmic Evolution in a Cyclic Universe
- Dynamical Reduction Models
- Semiclassicality and Decoherence of Cosmological Perturbations
- Planck evidence for a closed Universe and a possible crisis for cosmology
- Inflationary spacetimes are not past-complete
- Planck 2013 results. XV. CMB power spectra and likelihood
- On the Cosmological Implications of the String Swampland
- Planck 2018 results. VII. Isotropy and Statistics of the CMB
- The Emergent Universe: inflationary cosmology with no singularity
- Bouncing Universes in String-inspired Gravity
- Planck 2015 results. XVI. Isotropy and statistics of the CMB
- Bounds on Slow Roll and the de Sitter Swampland
- Suppressing the lower Multipoles in the CMB Anisotropies
- Bouncing Cosmologies: Progress and Problems
- Curvature tension: evidence for a closed universe
- Eternal inflation and the initial singularity
- A Critical Review of Classical Bouncing Cosmologies
- CMB Anomalies after Planck
- Hubble Parameter and Baryon Acoustic Oscillation Measurement Constraints on the Hubble Constant, the Deviation from the Spatially-Flat cdm Model, The Deceleration-Acceleration Transition Redshift, and Spatial Curvature
- The Emergent Universe: An Explicit Construction
- Trans-Planckian Censorship and the Swampland
- Producing a Scale-Invariant Spectrum of Perturbations in a Hagedorn Phase of String Cosmology
- The Uncorrelated Universe: Statistical Anisotropy and the Vanishing Angular Correlation Function in WMAP Years 1-3
- Reconstructing the primordial power spectrum
- Large-angle anomalies in the CMB
- Trans-Planckian Censorship and Inflationary Cosmology
- Is Quantum Gravity Necessary?
- Dark energy as the weight of violating energy conservation
- Eppur è piatto? The cosmic chronometer take on spatial curvature and cosmic concordance
- An emergent universe from a loop
- The evidence for a spatially flat Universe
- Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
- Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation
- Emergent Universe with Exotic Matter
- 2-Point Correlations in the COBE DMR 4-Year Anisotropy Maps
- Open and Closed Universes, Initial Singularities and Inflation
- Against Many-Worlds Interpretations
- Primordial perturbations in a non singular bouncing universe model
- Dynamical Dark Energy or Simply Cosmic Curvature?
- On the Stability of the Einstein Static Universe
- Trans-Planckian Issues for Inflationary Cosmology
- Investigating Cosmic Discordance
- On the quantum origin of the seeds of cosmic structure
- Why Decoherence has not Solved the Measurement Problem: A Response to P. W. Anderson
- INFLATION WITH VARIABLE OMEGA
- Minimal conditions for the creation of a Friedman-Robertson-Walker universe from a "bounce"
- Inflation with
- Non-parametric spatial curvature inference using late-universe cosmological probes
- Stability of the Einstein static universe in f(R) gravity
- No large-angle correlations on the non-Galactic microwave sky
- Obtaining the CMB anomalies with a bounce from the contracting phase to inflation
- Cosmological Inflation and the Quantum Measurement Problem
- Shortcomings in the Understanding of Why Cosmological Perturbations Look Classical
- The galaxy power spectrum take on spatial curvature and cosmic concordance
- New test of the FLRW metric using the distance sum rule
- Quantum Creation of an Open Inflationary Universe
- Double Inflation and the Low CMB Quadrupole
- Sourcing semiclassical gravity from spontaneously localized quantum matter
- Baryon acoustic oscillation, Hubble parameter, and angular size measurement constraints on the Hubble constant, dark energy dynamics, and spatial curvature
- A Toy Model for Open Inflation
- CSL Wave Function Collapse Model as a Mechanism for the Emergence of Cosmological Asymmetries in Inflation
- Inflationary Cosmology as a Probe of Primordial Quantum Mechanics
- Using the tilted flat-CDM and the untilted non-flat CDM inflation models to measure cosmological parameters from a compilation of observational data
- Emergent Universe and Phantom Tachyon Model
- Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data
- Why Eppley and Hannah's Experiment Isn't
- Can we have inflation with Omega > 1?
- Measurement Analysis and Quantum Gravity
- Singularities in Inflationary Cosmology: A Review
- WMAP data and the curvature of space
- Interacting Dark Energy in a closed universe
- Violations of the Weak Energy Condition in Inflating Spacetimes
- Lack of large-angle TT correlations persists in WMAP and Planck
- The Einstein static universe in Loop Quantum Cosmology
- CSL Collapse Model Mapped with the Spontaneous Radiation
- Planck 2015 constraints on the non-flat CDM inflation model
- Testing Late Time Cosmic Acceleration with uncorrelated Baryon Acoustic Oscillations dataset
- Emerging spatial curvature can resolve the tension between high-redshift CMB and low-redshift distance ladder measurements of the Hubble constant
- Loop Quantum Gravity and the Cyclic Universe
- Why Not Consider Closed Universes?
- Closed Universes, de Sitter Space and Inflation
- Benefits of Objective Collapse Models for Cosmology and Quantum Gravity
- Emergent universe in chameleon, f(R) and f(T) gravity theories
- String Gas Cosmology: Progress and Problems
- Model-independent determination of and from strong lensing and type Ia supernovae
- Measuring the Hubble constant and spatial curvature from supernova apparent magnitude, baryon acoustic oscillation, and Hubble parameter data
- Kinetic Initial Conditions for Inflation
- Alleviating the Tension in the Cosmic Microwave Background using Planck-Scale Physics
- Emergent Universe in Brane World Scenario with Schwarzschild-de Sitter Bulk
- Eternal Inflation
- An estimate of the local ISW signal, and its impact on CMB anomalies
- What Can WMAP Tell Us About The Very Early Universe? New Physics as an Explanation of Suppressed Large Scale Power and Running Spectral Index
- Emergent universe in a Jordan-Brans-Dicke theory
- Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton
- The CMB Quadrupole depression produced by early fast-roll inflation: MCMC analysis of WMAP and SDSS data
- Contextual Wavefunction Collapse: An integrated theory of quantum measurement
- Quantum-to-classical transition of primordial cosmological perturbations in de Broglie--Bohm quantum theory
- CMB quadrupole suppression: II. The early fast roll stage
- Quantum to Classical Transition of Inflationary Perturbations - Continuous Spontaneous Localization as a Possible Mechanism -
- Large-Angle Correlations in the Cosmic Microwave Background
- A cosmic shadow on CSL
- Towards a formal description of the collapse approach to the inflationary origin of the seeds of cosmic structure
- Emergent Universe Scenario via Quintom Matter
- Constraints on Exotic Matter for An Emergent Universe
- Inflation in a closed universe
- The pre-inflationary and inflationary fast-roll eras and their signatures in the low CMB multipoles
- Large scale anomalies in the CMB and non-Gaussianity in bouncing cosmologies
- Recycling the universe using scalar fields
- Cosmological constraints on non-standard inflationary quantum collapse models
- Microwave sky and the local Rees-Sciama effect
- Predictions of just-enough inflation
- Bouncing alternatives to inflation
- Emergent Universe from Scale Invariant Two Measures Theory
- The stability of Einstein static universe in the DGP braneworld
- A Galileon Design of Slow Expansion: II
- Super-Inflation, Non-Singular Bounce, and Low Multipoles
- Emergent Cosmology Revisited
- Missing Power vs low-l Alignments in the Cosmic Microwave Background: No Correlation in the Standard Cosmological Model
- Quantum origin of the primordial fluctuation spectrum and its statistics
- Low power on large scales in just enough inflation models
- The slow roll condition and the amplitude of the primordial spectrum of cosmic fluctuations: Contrasts and similarities of standard account and the "collapse scheme"
- On the Stability of Jordan-Brans-Dicke Static Universe
- An emergent universe supported by a nonlinear sigma model
- CMB anomalies from an inflationary model in string theory
- Origin of classical structure from inflation
- Simple Refutation of the Eppley-Hannah argument
- Emergent Universe from A Composition of Matter, Exotic Matter and Dark Energy
- On the choice of the collapse operator in cosmological Continuous Spontaneous Localisation (CSL) theories
- The Einstein static universe in Scalar-Fluid theories
- Einstein Static Universe in Braneworld Scenario
- Bouncing Universe from Nothing
- Emergent scenario in the Einstein-Cartan theory
- Cosmology of the Spinor Emergent Universe and Scale-invariant Perturbations
- Dynamics of Inflationary Universes with Positive Spatial Curvature
- Emergent universe in Horava-Lifshitz-like F(R) gravity
- Emerging Universe from Scale Invariance
- Quantum Instability of the Emergent Universe
- Critical review of prevailing explanations for the emergence of classicality in cosmology
- Perturbations in a Bouncing Brane Model
- Less Decoherence and More Coherence in Quantum Gravity, Inflationary Cosmology and Elsewhere
- Anomalies in the CMB from a cosmic bounce
- Emergent universe in theories with natural UV cutoffs
- The collapse of the wave function in the joint metric-matter quantization for inflation
- Semiclassical theories as initial value problems
- Emergent universe scenario and the low CMB multipoles
- Non-parametric Dark Energy Degeneracies
- Emergent universe in spatially flat cosmological model
- Emergence of inflationary perturbations in the CSL model
- Emergent Universe by Tunneling
- Generally covariant dynamical reduction models and the Hadamard condition
- The basis problem in many-worlds theories
- Reassessing the link between B-modes and inflation
- Expectation of primordial gravity waves generated during inflation
- Discussions about the landscape of possibilities for treatments of cosmic inflation involving continuous spontaneous localization models
- Modeling the large-scale power deficit with smooth and discontinuous primordial spectra
- Inflation without quantum gravity
- Constraining quantum collapse inflationary models with CMB data
- Origin of structure: Statistical characterization of the primordial density fluctuations and the collapse of the wave function
- Primordial gravitational waves and the collapse of the wave function
- Constraining quantum collapse inflationary models with current data: The semiclassical approach
- Spacetime in Semiclassical Gravity
- Inhomogeneities from quantum collapse scheme without inflation
- Constraining Quantum Initial Conditions before Inflation
- Topology of the universe from COBE-DMR; a wavelet approach
- Inflation and the Measurement Problem
- The dark side of curvature
- Semiclassical Self Consistent Treatment of the Emergence of Seeds of Cosmic Structure. The second order construction
- Eternal inflation and the quantum birth of cosmic structure
- Quantum slow-roll and quantum fast-roll inflationary initial conditions: CMB quadrupole suppression and further effects on the low CMB multipoles
- Quasi-matter bounce and inflation in the light of the CSL model
- Emergent Universe by Tunneling in a Jordan-Brans-Dicke Theory
- A pure general relativistic non-singular bouncing origin for the Universe
- Inflationary gravitational waves in collapse scheme models
- Generation of inflationary perturbations in the continuous spontaneous localization model: The second order power spectrum
- Emergent Universe With Exotic Matter In Loop Quantum Cosmology, DGP Brane World and Kaluza-Klein Cosmology
- Enlightening the CSL model landscape in inflation
- Observational Constraints on the Model Parameters of a Class of Emergent Universe
- A response to criticisms on "CMB Constraints Cast a Shadow on CSL Model"
- Novel vacuum conditions in inflationary collapse models
- On the quantum description of the early universe