A quest for a “direct” observation of the Unruh effect with classical electrodynamics: In honor of Atsushi Higuchi 60th anniversary

Cozzella, Gabriel; Landulfo, André G. S.; Matsas, George E. A.; Vanzella, Daniel A. T.

doi:10.1142/s0218271818430083

Cited by 6 publications

(5 citation statements)

References 27 publications

(19 reference statements)

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“…We hope that the present paper helps to clarify the long-standing issue about whether uniformly accelerated sources radiate for coaccelerating observers, and strengthens the conclusion reached in Refs. [8,9] that under proper conditions [21] the observation of Larmor radiation is a piece of circumstantial evidence in favor of the Unruh thermal bath. The link between the classical Larmor radiation (cast in terms of classical energy flux) and the quantum Unruh effect (associated with a thermal state of quantum particles) is provided by the simple Planck-Einstein relation E = hν.…”

Section: Discussionmentioning

confidence: 99%

“…This issue does not arise in the scalar analog. Furthermore, either adding some transverse velocity to the charge (which makes it to interact also with nonzero energy modes) [8,9] or adding a small Proca mass to the field [10] in intermediate stages of the calculation makes it possible to study an oscillating charge strength without introducing a dipole.…”

Section: Introductionmentioning

confidence: 99%

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Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors

Cozzella,

Fulling,

Landulfo

et al. 2020

Preprint

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors

Cozzella,

Fulling,

Landulfo

et al. 2020

Preprint

Self Cite

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“…Using these correspondences, Cozzella et al [13] claim that the existence of the classical radiation then indirectly proves, through virtual confirmation, the existence of Unruh radiation and further propose an experimental set-up to detect this classical radiation. The challenges involved to perform the experiment are discussed in [15].…”

Section: Introductionmentioning

confidence: 99%

Role of the Unruh effect in Bremsstrahlung

Paithankar

Kolekar

2020

Phys. Rev. D

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An equivalence is demonstrated, by an explicit first order quantum calculation, between the Minkowski photon emission rate in the inertial frame for an accelerating charge moving on a Rindler trajectory with additional transverse drift motion and the combined Rindler photon emission and absorption rate of the same charge in the Rindler frame in the presence of the Davies Unruh thermal bath. The equivalence also extends, for the Bremsstrahlung emitted by the same charge as calculated using the machinery of classical electrodynamics. The equivalence is shown to also hold for the case of accelerating charges moving on a Rindler trajectory with additional arbitrary transverse motion. Our results generalise those of of Cozzella et. al. (2017) for accelerated trajectories with circular transverse motion. Related issues and experimental implications are discussed. * kajol.paithankar@cbs.ac.in † sanved.kolekar@cbs.ac.in

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“…Although the physics in Minkowski spacetime as described by an inertial observer is indeed a very relevant description (one can just take a look at quantum field theory textbooks), the use of non inertial frames of reference, like the ones associated with accelerated observers, has become a very rich territory for our present understanding of new physical phenomena emerging from the quantum world. This is the case for instance of the thermal bath of Unruh radiation [1] that a constantly accelerated observer 1 should experience, though it has not been experimentally verified yet [2] [3]. In addition, and just by taking into account the equivalence principle, one can relate the physics experienced by these accelerated observers in Minkowski spacetime with that of an observer hovering above the horizon of a Schwarzschild black hole.…”

Section: Introductionmentioning

confidence: 99%

Observers with constant proper acceleration, constant proper Jerk, and beyond

Pons

Palol

2019

Gen Relativ Gravit

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We discuss in Minkowski spacetime the differences between the concepts of constant proper n-acceleration and of vanishing (n + 1)-acceleration. By n-acceleration we essentially mean the higher order time derivatives of the position vector of the trajectory of a point particle, adapted to Minkowski spacetime or eventually to curved spacetime. The 2-acceleration is known as the Jerk, the 3-acceleration as the Snap, etc. As for the concept of proper n-acceleration we give a specific definition involving the instantaneous comoving frame of the observer and we discuss, in such framework, the difficulties in finding a characterization of this notion as a Lorentz invariant statement. We show how the Frenet-Serret formalism helps to address the problem. In particular we find that our definition of an observer with constant proper acceleration corresponds to the vanishing of the third curvature invariant κ 3 (thus the motion is three dimensional in Minkowski spacetime) together with the constancy of the first and second curvature invariants and the restriction κ 2 < κ 1 , the particular case κ 2 = 0 being the one commonly referred to in the literature. We generalize these concepts to curved spacetime, in which the notion of trajectory in a plane is replaced by the vanishing of the second curvature invariant κ 2 . Under this condition, the concept of constant proper n-acceleration coincides with that of the vanising of the (n + 1)-acceleration and is characterized by the fact that the first curvature invariant κ 1 is a (n − 1)-degree polynomial of proper time. We illustrate some of our results with examples in Minkowski, de Sitter and Schwarzschild spacetimes.1 From now on, by constantly accelerated observer we mean the observer with constant proper acceleration.Proper in the sense of being described in the instantaneous frame comoving with the observer. 2 We learn in [4] that "This terminology goes back to a 1932 advertisement of Kellogg's Rice Crispies which 'merrily Snap, crackle, and pop in a bowl of milk' ". Here our use of these concepts is unrelated to the standard use in cosmology as higher order time derivatives of the scale factor in the Friedmann-Lemaitre-Robertson-Walker (FLRW) metric

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A quest for a “direct” observation of the Unruh effect with classical electrodynamics: In honor of Atsushi Higuchi 60th anniversary

Cited by 6 publications

References 27 publications

Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors

Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors

Role of the Unruh effect in Bremsstrahlung

Observers with constant proper acceleration, constant proper Jerk, and beyond

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