Scalar production in Schwarzschild and Rindler metrics

Davies, Paul

doi:10.1088/0305-4470/8/4/022

Cited by 901 publications

(795 citation statements)

References 3 publications

(4 reference statements)

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“…Therefore, the observer must trace over the modes in inaccessible region, losing information about the state, which essentially results in the detection of a thermal state. This effect is called the Unruh effect [33,34]. We consider the following maximally entangled GHZ state …”

Section: Tripartite State In Accelerated Framesmentioning

confidence: 99%

Tripartite entanglement of fermionic system in accelerated frames

Khan

2014

Annals of Physics

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The dynamics of tripartite entanglement of fermionic system in noninertial frames through linear contraction criterion when one or two observers are accelerated is investigated. In one observer accelerated case the entanglement measurement is not invariant with respect to the partial realignment of different subsystems and for two observers accelerated case it is invariant. It is shown that the acceleration of the frame does not generate entanglement in any bipartite subsystems. Unlike the bipartite states, the genuine tripartite entanglement does not completely vanish in both one observer accelerated and two observers accelerated cases even in the limit of infinite acceleration. The degradation of tripartite entanglement is fast when two observers are accelerated than when one observer is accelerated. It is shown that tripartite entanglement is a better resource for quantum information processing than the bipartite entanglement in noninertial frames .

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Section: Tripartite State In Accelerated Framesmentioning

confidence: 99%

Tripartite entanglement of fermionic system in accelerated frames

Khan

2014

Annals of Physics

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“…The state is chosen to be entangled as the GHZ state or the W state. Then switching to the Rindler coordinates for the accelerated observers, we investigate the change of entanglement caused by the Unruh effect [18]. We use the logarithmic negativity as a measure to evaluate the entanglement.…”

Section: Introductionmentioning

confidence: 99%

Tripartite Entanglements in Noninertial Frames

2011

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Entanglement degradation caused by the Unruh effect is discussed for the tripartite GHZ or W states constructed by modes of a non-interacting quantum field viewed by one inertial observer and two uniformly accelerated observers. For fermionic states, the Unruh effect even for infinite accelerations cannot completely remove the entanglement. However, for the bosonic states, the situation is different and the entanglement vanishes asymptotically. Also, the entanglement is studied for the bipartite subsystems. While for the GHZ states all the bipartite subsystems are identically disentangled, for the W states the bipartite subsystems are somewhat entangled, though, this entanglement can be removed for appropriately accelerated observers. Interestingly, logarithmic negativity as a measure for determining the entanglement of one part of the system relative to the other two parts, is not generally the same for different parts. This means that we encounter tripartite systems where each part is differently entangled to the other two parts. * Electronic address: mshj@iaush.ac.ir † Electronic address: ba_nasre@sci.ui.ac.ir ‡ Electronic address: msoltani@phys.ui.ac.ir

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“…These radiation reaction forces on moving bodies may appear even in the case of only one moving wall [9]- [11]. Connections between the dynamical Casimir effect and several interesting phenomena such as the Unruh-Davies effect [12], black hole physics [13], sonoluminescence [14], mass corrections [15] and quantum decoherence [16] have been discussed in the literature [17].…”

Section: Introductionmentioning

confidence: 99%

Dynamical Casimir effect with Dirichlet and Neumann boundary conditions

Alves

Farina²,

Neto³

2003

J. Phys. A: Math. Gen.

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We derive the radiation pressure force on a non-relativistic moving plate in 1+1 dimensions. We assume that a massless scalar field satisfies either Dirichlet or Neumann boundary conditions (BC) at the instantaneous position of the plate. We show that when the state of the field is invariant under time translations, the results derived for Dirichlet and Neumann BC are equal. We discuss the force for a thermal field state as an example for this case. On the other hand, a coherent state introduces a phase reference, and the two types of BC lead to different results.

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Scalar production in Schwarzschild and Rindler metrics

Cited by 901 publications

References 3 publications

Tripartite entanglement of fermionic system in accelerated frames

Tripartite entanglement of fermionic system in accelerated frames

Tripartite Entanglements in Noninertial Frames

Dynamical Casimir effect with Dirichlet and Neumann boundary conditions

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