Decoherence Induced by the Noise of Primordial Graviton with Minimum Uncertainty Initial States

• URL: http://arxiv.org/abs/2305.06534v4
• Date: Sun, 18 Aug 2024 05:02:31 GMT
• Title: Decoherence Induced by the Noise of Primordial Graviton with Minimum Uncertainty Initial States
• Authors: Anom Trenggana, Freddy P. Zen, Getbogi Hikmawan,
• Abstract summary: We have investigated the decoherence induced by the primordial graviton using the influence functional method. We found that this method is still effective for detecting gravitons if the density matrix of the initial state does not have non-diagonal elements.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We have investigated the decoherence induced by the primordial graviton, using the influence functional method, to show whether this method is still effective in detecting graviton if the initial state is not a Bunch-Davies vacuum but rather a minimum uncertainty state. This minimum uncertainty condition allows the initial state of the primordial graviton to be an entanglement state between the polarization or, more generally, a superposition state between a vacuum and that entanglement. Both of those states have a non-classical correlation between the two polarization modes. We found that this method is still effective for detecting gravitons if the density matrix of the initial state does not have non-diagonal elements, where the maximum decoherence time is about 20 seconds, and the dimensions of the interferometer could be reduced if the total graviton increases.

Related papers

• On Gravity Implication in the Wavefunction Collapse [0.0]
  We investigate the stability of the spatial superposition of a massive quantum state under the gravity effect. We reveal that the gravitational self-interaction between the different spacetime curvatures created by the eigenstate effective masses leads to the reduction of the superposed state to one of the possible localized states.
  arXiv  Detail & Related papers  (2024-11-07T17:18:45Z)
• Quantum jumps in amplitude bistability: tracking a coherent and invertible state localization [0.0]
  We investigate quantum jumps occurring between macroscopic metastable states of light in the open driven Jaynes-Cummings model. We find that, in the limit of zero spontaneous emission considered in [H. J. Carmichael, Phys. Rev. X 5, 031028], the jumps from a high-photon state to the vacuum state entail two stages.
  arXiv  Detail & Related papers  (2024-09-17T15:08:48Z)
• Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions [34.82692226532414]
  We study subradiance in a Bose-Einstein condensate positioned at the mode crossing of two optical cavities. metastable density structures that suppress emission into one cavity mode prevent relaxation to the stationary, superradiant grating. We reproduce these dynamics by a quantum mean field model, suggesting that subradiance shares characteristics with quasi-stationary states predicted in other long-range interacting systems.
  arXiv  Detail & Related papers  (2024-07-12T12:47:07Z)
• Real-time dynamics of false vacuum decay [49.1574468325115]
  We investigate false vacuum decay of a relativistic scalar field in the metastable minimum of an asymmetric double-well potential. We employ the non-perturbative framework of the two-particle irreducible (2PI) quantum effective action at next-to-leading order in a large-N expansion.
  arXiv  Detail & Related papers  (2023-10-06T12:44:48Z)
• Testing the nonclassicality of gravity with the field of a single delocalized mass [55.2480439325792]
  A setup is proposed that is based on a single delocalized mass coupled to a harmonically trapped test mass. We investigate the in-principle feasibility of such an experiment, which turns out to crucially depend on the ability to tame Casimir-Polder forces.
  arXiv  Detail & Related papers  (2023-07-18T15:40:16Z)
• Testing Whether Gravity Acts as a Quantum Entity When Measured [0.0]
  A defining signature of classical systems is "in principle measurability" without disturbance. We describe a multi-interferometer experimental setup that can, in principle, reveal the nonclassicality of a spatial superposition-sourced gravitational field.
  arXiv  Detail & Related papers  (2023-07-16T19:10:25Z)
• Testing the quantum nature of gravity without entanglement [5.461938536945723]
  Given a unitary evolution $U$, how well can $U$ be simulated by local operations and classical communication (LOCC) on that ensemble? We establish a general, efficiently computable upper bound on the maximal LOCC simulation fidelity. We then apply our findings to the fundamental setting where $U$ implements a quantum Newtonian Hamiltonian over a gravitationally interacting system.
  arXiv  Detail & Related papers  (2023-02-06T19:22:48Z)
• A background-free optically levitated charge sensor [50.591267188664666]
  We introduce a new technique to model and eliminate dipole moment interactions limiting the performance of sensors employing levitated objects. As a demonstration, this is applied to the search for unknown charges of a magnitude much below that of an electron. As a by-product of the technique, the electromagnetic properties of the levitated objects can also be measured on an individual basis.
  arXiv  Detail & Related papers  (2021-12-20T08:16:28Z)
• Prolonged orbital relaxation by locally modified phonon density of states for SiV$^-$ center in nanodiamonds [45.82374977939355]
  Coherent quantum systems are a key resource for emerging quantum technology. A novel method is presented to prolong the orbital relaxation with a locally modified phonon density of states.
  arXiv  Detail & Related papers  (2021-07-30T14:14:26Z)
• Certifying Multilevel Coherence in the Motional State of a Trapped Ion [0.38813406044213633]
  coherent superposition of three motional Fock states of a single trapped ion is experimentally certified. This demonstrates that high-level coherence can be verified and investigated with simple, nonideal control methods.
  arXiv  Detail & Related papers  (2021-06-24T12:05:29Z)
• Gravitational waves affect vacuum entanglement [68.8204255655161]
  The entanglement harvesting protocol is an operational way to probe vacuum entanglement. Using this protocol, it is demonstrated that while the transition probability of an individual atom is unaffected by the presence of a gravitational wave, the entanglement harvested by two atoms depends sensitively on the frequency of the gravitational wave. This suggests that the entanglement signature left by a gravitational wave may be useful in characterizing its properties, and potentially useful in exploring the gravitational-wave memory effect and gravitational-wave induced decoherence.
  arXiv  Detail & Related papers  (2020-06-19T18:01:04Z)

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.