Light-Pulse Atom Interferometric Test of Continuous Spontaneous Localization

Abstract

We investigate the effect of the Continuous Spontaneous Localization (CSL) model on light-pulse atom interferometry. Using a path-integral approach with an additional stochastic potential accounting for CSL, we derive an exponential loss of the contrast that scales linearly with the interferometer time $T$ if both interferometer arms are spatially separated. We compare our theoretical results with measurements from a cold rubidium atom interferometer based on counter-propagating two-photon transitions with pulse separation times up to $T$ = 260 ms and obtain the corresponding bounds on the CSL parameters.

arXiv commentcorrected references; improved resolution of figure 4; added missing reference to figure 2 in text

References in corpus (26)

• Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
• Dynamical Reduction Models
• Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
• Interferometry with Bose-Einstein Condensates in Microgravity
• Testing General Relativity with Atom Interferometry
• Quantum Test of the Universality of Free Fall
• Atom-interferometry constraints on dark energy
• Mobile quantum gravity sensor with unprecedented stability
• Experimental bounds on collapse models from gravitational wave detectors
• Probing gravity by holding atoms for 20 seconds
• Atom interferometry tests of local Lorentz invariance in gravity and electrodynamics
• Present status and future challenges of non-interferometric tests of collapse models
• Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
• Improved noninterferometric test of collapse models using ultracold cantilevers
• Twin-lattice atom interferometry
• Ultracold atom interferometry in space
• Testing spontaneous localization theories with matter-wave interferometry
• Collapse models with non-white noises
• Room temperature test of the Continuous Spontaneous Localization model using a levitated micro-oscillator
• Bounds on collapse models from cold-atom experiments
• CSL Collapse Model Mapped with the Spontaneous Radiation
• Narrowing the parameter space of collapse models with ultracold layered force sensors
• Colored and Dissipative Continuous Spontaneous Localization model and Bounds from Matter-Wave Interferometry
• Entangling macroscopic diamonds at room temperature: Bounds on the continuous-spontaneous-localization parameters
• Testing Continuous Spontaneous Localization with Fermi liquids
• Sensing spontaneous collapse and decoherence with interfering Bose-Einstein condensates

Cited by in corpus (2)

• Massive graviton dark matter searches with long-baseline atom interferometers
• Bell correlations between momentum-entangled pairs of ${}^4{\text{He}}^{\ast }$ atoms