Unruh effect and Takagi's statistics inversion in strained graphene

Bhardwaj, A.; Sheehy, Daniel E.

doi:10.1103/physrevb.107.224310

Cited by 2 publications

(1 citation statement)

References 99 publications

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“…Quantum field theory (QFT) in curved spacetime 1 gives us intriguing results such as Hawking radiation [2] and the Unruh effect [3]. These phenomena have not only far-reaching consequences, where any consistent theory of quantum gravity should reproduce them at appropriate limits, but also appear in diverse research fields such as theoretical condensed matter [4,5], quantum optics [6,7], and quantum information [8,9], in addition to their original research program, high energy theory. The latter is especially reflected in the recent developments on resolving the Hawking information paradox [10] which have been conducted by two groups in [11][12][13][14].…”

Section: Jhep07(2023)064 1 Introductionmentioning

confidence: 99%

Kappa vacua: enhancing the Unruh temperature

Azizi

2023

J. High Energ. Phys.

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We provide further elaboration on kappa mode, which is a mode constructed by the linear combination of Rindler modes in the right and the left Rindler wedges, exhibiting norms with opposite signs. We establish a relation among different kappa vacua, resembling the thermofield double state. However, the energy of a kappa photon no longer exhibits a linear dependence on its frequency, unless the limit of κ → 0 (the Rindler vacuum) is taken into account. In other words, a kappa vacuum can be expressed in terms of the Rindler vacuum as the conventional thermofield double state, with the usual energy for a photon. However, it features a modified Unruh temperature given by $$ {T}_{\kappa }=\frac{\mathit{\hslash a}}{2\pi c{k}_B}\kappa $$ T κ = ℏa 2 πc k B κ . Consequently, when a uniformly accelerated observer with an acceleration a is immersed in a κ-vacuum, they perceive a thermal bath. However, the temperature experienced by the observer is a modified Unruh temperature denoted as Tκ. Remarkably, the Unruh temperature can be enhanced by an arbitrary factor of κ.

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Section: Jhep07(2023)064 1 Introductionmentioning

confidence: 99%

Kappa vacua: enhancing the Unruh temperature

Azizi

2023

J. High Energ. Phys.

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Accelerated paths and Unruh effect: finite time detector response in (anti) de Sitter spacetime and Huygen’s principle

Ahmed,

Faruk,

Rahman

2023

Eur. Phys. J. C

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We study the finite time response of an Unruh–DeWitt particle detector described by a qubit (two-level system) moving with uniform constant acceleration in maximally symmetric spacetimes. The D dimensional massless fermionic response function in de Sitter (dS) background is found to be identical to that of a detector linearly coupled to a massless scalar field in 2D dimensional dS background. Furthermore, we visit the status of Huygen’s principle in the Unruh radiation observed by the detector.

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Unruh effect and Takagi's statistics inversion in strained graphene

Cited by 2 publications

References 99 publications

Kappa vacua: enhancing the Unruh temperature

Kappa vacua: enhancing the Unruh temperature

Accelerated paths and Unruh effect: finite time detector response in (anti) de Sitter spacetime and Huygen’s principle

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