Gravitational waves affect vacuum entanglement

Xu, Qidong; Ahmad, Shadi Ali; Smith, Alexander R. H.

doi:10.1103/physrevd.102.065019

Cited by 30 publications

(44 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, we demonstrate that even a single UDW detector can see the shockwave as it passes by. This is in contrast to the recent study [48] where it was shown that a single UDW detector cannot detect (linearized) gravitational waves. As we shall discuss, this negative result can be traced to the fact that the quantum detection was only investigated at the linear order in the wave amplitude, while the measurable effect appears at the second order.…”

Section: Jhep11(2021)054contrasting

confidence: 97%

“…This simple setup is known to reproduce essential aspects of light-matter interactions [45,46]. The UDW detector has also been shown to be sensitive to global properties of the spacetime as well as local curvature effects, including the passage of gravitational waves [47][48][49][50][51][52][53][54]. New effects such as the anti-Unruh and anti-Hawking effects, only accessible to local and finite time interaction observers, have also been observed within this framework [55][56][57][58].…”

Section: Jhep11(2021)054mentioning

confidence: 99%

“…It is worth mentioning that in our setup the two detectors are placed in the longitudinal direction rather than the transverse direction, as was done for the linearized gravity case in [48].…”

Section: Detectors' Worldlinesmentioning

confidence: 99%

See 2 more Smart Citations

Quantum imprints of gravitational shockwaves

Gray

Kubizňák

May

et al. 2021

J. High Energ. Phys.

View full text Add to dashboard Cite

Gravitational shockwaves are simple exact solutions of Einstein equations representing the fields of ultrarelativistic sources and idealized gravitational waves (shocks). Historically, much work has focused on shockwaves in the context of possible black hole formation in high energy particle collisions, yet they remain at the forefront of research even today. Representing hard modes in the bulk, shocks give rise to the gravitational memory effect at the classical level and implant supertranslation (BMS) hair onto a classical spacetime at the quantum level. The aim of this paper is to further our understanding of the ‘information content’ of such supertranslations. Namely, we show that, contrary to the several claims in the literature, a gravitational shockwave does leave a quantum imprint on the vacuum state of a test quantum field and that this imprint is accessible to local observers carrying Unruh-DeWitt (UDW) detectors in this spacetime.

show abstract

Section: Jhep11(2021)054contrasting

confidence: 97%

Section: Jhep11(2021)054mentioning

confidence: 99%

See 1 more Smart Citation

Quantum imprints of gravitational shockwaves

Gray

Kubizňák

May

et al. 2021

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…A lot of studies have demonstrated that the phenomenon of entanglement harvesting involves a combination of relativistic and quantum effects, and it is sensitive to the spacetime topology [18,26,28,29,31], intricate motions of detectors [32], and even cosmology [21,22]. More recently, the entanglement harvesting in some special circumstances has been investigated, such as in the background with black JHEP08(2021)020 holes [28], in the presence of gravitational waves [34] and near the horizon mimicked by imposing a moving mirror as the boundary [35,36]. In particular, the entanglement harvesting has been studied for inertial detectors in 1+1 dimensional moving mirror spacetimes in ref.…”

Section: Introductionmentioning

confidence: 99%

Entanglement harvesting in the presence of a reflecting boundary

Liu

Zhang

2021

J. High Energ. Phys.

View full text Add to dashboard Cite

We study, in the framework of the entanglement harvesting protocol, the entanglement harvesting of both a pair of inertial and uniformly accelerated detectors locally interacting with vacuum massless scalar fields subjected to a perfectly reflecting plane boundary. We find that the presence of the boundary generally degrades the harvested entanglement when two detectors are very close to the boundary. However, when the distance between detectors and the boundary becomes comparable to the interaction duration parameter, the amount of the harvested entanglement approaches a peak, which even goes beyond that without a boundary. Remarkably, the parameter space of the detectors’ separation and the magnitude of acceleration that allows entanglement harvesting to occur is enlarged due to the presence of the boundary. In this sense, the boundary plays a double-edged role on entanglement harvesting, degrading in general the harvested entanglement while enlarging the entanglement harvesting-achievable parameter space. A comparison of three different acceleration scenarios of the detectors with respect to the boundary, i.e., parallel, anti-parallel and mutually perpendicular acceleration, shows that the phenomenon of entanglement harvesting crucially depends on the acceleration, the separation between two detectors and the detectors’ distance from the boundary.

show abstract

“…We believe that this research program might allow to make more accurate experimental tests of the validity in nuclear physics of the uncertainty principle and of the instantaneous wave function collapse postulate looking for path memory dependent nucleon impulses and forces. We want to remind once more that till now every Bell tests have been conceived for presumed isolated stable systems, disregarding gravity induced vacuum entanglement [18] and the dynamic decoherence effect due to time dependent background fields. On the contrary, we believe, as suggested recently by some authors [19] [20], that it is necessary to look for hidden variable models of vacuum fluctuations (and its coupling with the apparatus)and to speculate on infinite dimensional generalizations of Bell's Theorem for unstable particles viewed as excitation states of unstable vacuum, exploiting the new concept of dynamic vacuum [21].…”

Section: Modelmentioning

confidence: 99%

A Path Integral Generalization of Bell Local Hidden Variable Models for Unstable Particles

Bei¹

2021

JAMP

View full text Add to dashboard Cite

We discuss the problem of the generalization of Bell local hidden variable models for unstable particles as nucleons or decaying quantum bound states. We propose to extend the formalism of real deterministic hidden variables in the complex domain, in analogy with the quantum Gamow ket formalism, and we introduce a time dependent classical probability density distribution by which we implement hidden time dependence in the quantum expectation values. We suggest therefore a classical framework which may recover by asymptotic temporal limits the standard Bell stationary quantum statistical averages. Endly we discuss the possible relevance of our proposal for general non-isolated quantum systems in noninertial frames and the consequent dynamic effects of vacuum instabilities on E.P.R tests and Q.M. ensemble statistical averages.

show abstract

Gravitational waves affect vacuum entanglement

Cited by 30 publications

References 46 publications

Quantum imprints of gravitational shockwaves

Quantum imprints of gravitational shockwaves

Entanglement harvesting in the presence of a reflecting boundary

A Path Integral Generalization of Bell Local Hidden Variable Models for Unstable Particles

Contact Info

Product

Resources

About