Extracting electromagnetic signatures of spacetime fluctuations

• URL: http://arxiv.org/abs/2306.17706v2
• Date: Sat, 13 Jan 2024 02:01:44 GMT
• Title: Extracting electromagnetic signatures of spacetime fluctuations
• Authors: B. Sharmila, Sander M. Vermeulen, and Animesh Datta
• Abstract summary: We present a formalism to discern the effects of fluctuations of the spacetime metric on electromagnetic radiation. We present a model of spacetime fluctuations that appear as random fluctuations of the refractive index of the vacuum in single. We show that if the signal manifests at a frequency at which the interferometers are sensitive, the strength and scale of possible spacetime fluctuations can be constrained.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a formalism to discern the effects of fluctuations of the spacetime metric on electromagnetic radiation. The formalism works via the measurement of electromagnetic field correlations, while allowing a clear assessment of the assumptions involved. As an application of the formalism, we present a model of spacetime fluctuations that appear as random fluctuations of the refractive index of the vacuum in single, and two co-located Michelson interferometers. We compare an interferometric signal predicted using this model to experimental data from the Holometer and aLIGO. We show that if the signal manifests at a frequency at which the interferometers are sensitive, the strength and scale of possible spacetime fluctuations can be constrained. The bounds, thus obtained, on the strength and scale of the spacetime fluctuations, are also shown to be more stringent than the bounds obtained previously using astronomical observation at optical frequencies. The formalism enables us to evaluate proposed experiments such as QUEST for constraining quantum spacetime fluctuations and to design new ones.

Related papers

• Local Measurement Scheme of Gravitational Curvature using Atom Interferometers [0.4124271833765226]
  We present a method in which the differential signal of two co-located interferometers singles out a phase shift proportional to the curvature of the gravitational potential. We numerically simulate such a co-located gradiometric interferometer in the context of the Hannover VLBAI facility.
  arXiv  Detail & Related papers  (2024-09-05T13:29:45Z)
• Feynman Diagrams for Matter Wave Interferometry [0.0]
  We introduce a new theoretical framework based on Feynman diagrams to compute phase shifts in matter wave interferometry. We apply the method to compute the response of matter wave interferometers to power law potentials and potentials with an arbitrary spatial dependence.
  arXiv  Detail & Related papers  (2024-07-16T07:26:19Z)
• Photon Counting Interferometry to Detect Geontropic Space-Time Fluctuations with GQuEST [31.114245664719455]
  The GQuEST experiment uses tabletop-scale Michelson laser interferometers to probe for fluctuations in space-time. We present a practicable interferometer design featuring a novel photon counting readout method that provides unprecedented sensitivity.
  arXiv  Detail & Related papers  (2024-04-11T07:38:36Z)
• Gravitational wave memory and quantum Michelson interferometer [0.0]
  We examined the output of a quantum Michelson interferometer incorporating effects of nonlinear optomechanical interaction and time-varying gravitational fields. Our findings indicate a deviation from the standard relationship between the phase shift of the interferometer's output and the amplitude of gravitational waves.
  arXiv  Detail & Related papers  (2023-12-16T13:58:57Z)
• Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
  We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions. We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
  arXiv  Detail & Related papers  (2023-09-25T18:00:03Z)
• Gravitational time dilation as a resource in quantum sensing [0.0]
  We investigate whether gravitational time dilation may be also used as a resource in quantum information theory. We show that for a freely falling interferometer and for a Mach-Zehnder interferometer, the gravitational time dilation may enhance the precision in estimating the gravitational acceleration for long interferometric times.
  arXiv  Detail & Related papers  (2022-04-06T18:00:05Z)
• Dispersive readout of molecular spin qudits [68.8204255655161]
  We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states. We derive an expression for the output modes in the dispersive regime of operation. We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
  arXiv  Detail & Related papers  (2021-09-29T18:00:09Z)
• Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
  Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator. We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
  arXiv  Detail & Related papers  (2021-07-23T07:30:57Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Tunable Anderson Localization of Dark States [146.2730735143614]
  We experimentally study Anderson localization in a superconducting waveguide quantum electrodynamics system. We observe an exponential suppression of the transmission coefficient in the vicinity of its subradiant dark modes. The experiment opens the door to the study of various localization phenomena on a new platform.
  arXiv  Detail & Related papers  (2021-05-25T07:52:52Z)
• Interference of Clocks: A Quantum Twin Paradox [39.645665748998816]
  Phase of matter waves depends on proper time and is susceptible to special-relativistic (kinematic) and gravitational (redshift) time dilation. It is conceivable that atom interferometers measure general-relativistic time-dilation effects. We show that closed light-pulse interferometers without clock transitions during the pulse sequence are not sensitive to gravitational time dilation in a linear potential.
  arXiv  Detail & Related papers  (2019-05-22T12:30:57Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.