Genuine multipartite entanglement subject to the Unruh and anti-Unruh
effects
- URL: http://arxiv.org/abs/2207.01259v1
- Date: Mon, 4 Jul 2022 08:38:36 GMT
- Title: Genuine multipartite entanglement subject to the Unruh and anti-Unruh
effects
- Authors: Shu-Min Wu, Hao-Sheng Zeng, Tonghua Liu
- Abstract summary: We study the acceleration effect on the genuine tripartite entanglement for one or two accelerated detector(s) coupled to the vacuum field.
Surprisingly, we findthat the increase and decrease in entanglement have no definite correspondence with the Unruh and anti-Unruh effects.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the acceleration effect on the genuine tripartite entanglement for
one or two accelerated detector(s) coupled to the vacuum field. Surprisingly,
we findthatthe increase anddecrease in entanglement have no definite
correspondence with the Unruh and anti-Unruh effects. Specifically, Unruh
effect can not only decrease but also enhance the tripartite entanglement
between detectors; also, anti-Unruh effect can not only enhance but also
decrease the tripartite entanglement. We give an explanation of this
phenomenon. Finally, we extend the discussion from tripartite to N-partite
systems.
Related papers
- Influence of field mass and acceleration on entanglement generation [0.0]
We find that the maximum entanglement between detectors does not exhibit a strict monotonic dependence on detector acceleration.
Novelly, our findings indicate the absence of a strong anti-Unruh effect in (3+1)-dimensional massive scalar fields.
arXiv Detail & Related papers (2024-11-05T10:54:01Z) - Does anti-Unruh effect assist quantum entanglement and coherence? [0.9437165725355702]
We analyze the Unruh and anti-Unruh effects based on the model of Unruh-DeWitt detector.
We find that (i) the Unruh effect reduces quantum entanglement but enhances quantum coherence; (ii) the anti-Unruh effect enhances quantum entanglement but reduces quantum coherence.
arXiv Detail & Related papers (2024-04-23T16:20:48Z) - New physics in spin entanglement [44.99833362998488]
We propose a theory that preserves spin-summed scattering and decay rates at tree level while affecting particle spins.
This is achieved by breaking the Lorentz group in a non-local way.
arXiv Detail & Related papers (2024-03-21T18:00:17Z) - Effect of acceleration on information scrambling [0.0]
We study the impact of acceleration on information scrambling under the Unruh (anti-Unruh) effect for two types of tripartite entangled states.
Our findings indicate that the anti-Unruh effect can result in stronger information scrambling, as measured by tripartite mutual information.
arXiv Detail & Related papers (2023-05-02T11:27:12Z) - What's the Harm? Sharp Bounds on the Fraction Negatively Affected by
Treatment [58.442274475425144]
We develop a robust inference algorithm that is efficient almost regardless of how and how fast these functions are learned.
We demonstrate our method in simulation studies and in a case study of career counseling for the unemployed.
arXiv Detail & Related papers (2022-05-20T17:36:33Z) - Observation-dependent suppression and enhancement of two-photon
coincidences by tailored losses [68.8204255655161]
Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter.
In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement.
Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
arXiv Detail & Related papers (2021-05-12T06:47:35Z) - Acceleration-induced effects in stimulated light-matter interactions [0.0]
We show that, when accelerated, the non-resonant effects can be made to dominate over the conventional resonant effects.
In the class of effects that we study, the Unruh effect is the special case of vanishing stimulation.
arXiv Detail & Related papers (2021-03-29T18:00:03Z) - Distilling Causal Effect of Data in Class-Incremental Learning [109.680987556265]
We propose a causal framework to explain the catastrophic forgetting in Class-Incremental Learning (CIL)
We derive a novel distillation method that is to mitigate to the existing anti-forgetting techniques, such as data replay and feature/label distillation.
arXiv Detail & Related papers (2021-03-02T14:14:10Z) - Unruh Effect of Detectors with Quantized Center-of-Mass [0.0]
The Unruh effect is the prediction that particle detectors accelerated through the vacuum get excited by the apparent presence of radiation quanta.
Here, we study more realistic detectors whose center of mass is a quantized degree of freedom being accelerated by an external classical field.
We find that the recoil due to the emission of Unruh quanta may be a relevant experimental signature of the Unruh effect.
arXiv Detail & Related papers (2021-02-05T19:00:02Z) - Enhanced decoherence for a neutral particle sliding on a metallic
surface in vacuum [68.8204255655161]
We show that non-contact friction enhances the decoherence of the moving atom.
We suggest that measuring decoherence times through velocity dependence of coherences could indirectly demonstrate the existence of quantum friction.
arXiv Detail & Related papers (2020-11-06T17:34:35Z) - Decoherence as Detector of the Unruh Effect [58.720142291102135]
We propose a new type of the Unruh-DeWitt detector which measures the decoherence of the reduced density matrix of the detector interacting with the massless quantum scalar field.
We find that the decoherence decay rates are different in the inertial and accelerated reference frames.
arXiv Detail & Related papers (2020-03-10T21:45:09Z)
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.