Decay of accelerated particles

Müller, Rainer

doi:10.1103/physrevd.56.953

Cited by 62 publications

(87 citation statements)

References 12 publications

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“…It is worthwhile to emphasize, however, that deviations from the hyperbolic motion because of backreaction or other effects will in general disturb Eq. ͑3.40͒ with no contradiction to the Unruh effect, contrary to recent claims ͑Belinskii et al ., 1997;Fedotov et al, 1999͒. …”

Section: ͑340͒contrasting

confidence: 52%

“…Nevertheless, in view of the skepticism on the Unruh effect expressed recently ͑Belinskii et al ., 1997;Fedotov et al 1999;Oriti, 2000;Narozhny et al, 2002 we review the Unruh effect in this theory ͑Fulling 1973; Unruh 1976͒, drawing attention to some aspects that appear to have caused the skepticism. ͓See Fulling and Unruh ͑2004͒ for an explanation as to why this skepticism is unfounded.͔ The free quantized massive scalar field ⌽ ͑t , z , x Ќ ͒, x Ќ ϵ͑x , y͒, can be expanded as…”

Section: Massive Scalar Field In Rindler Wedgesmentioning

confidence: 99%

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The Unruh effect and its applications

2008

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It has been 30 years since the discovery of the Unruh effect. It has played a crucial role in our understanding that the particle content of a field theory is observer dependent. This effect is important in its own right and as a way to understand the phenomenon of particle emission from black holes and cosmological horizons. The Unruh effect is reviewed here with particular emphasis on its applications. A number of recent developments are also commented on and some controversies are discussed. Effort is also made to clarify what seem to be common misconceptions.

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Section: ͑340͒contrasting

confidence: 52%

Section: Massive Scalar Field In Rindler Wedgesmentioning

confidence: 99%

The Unruh effect and its applications

2008

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“…A prevailing view is that the action of PSA-NCAM could be to interfere with the adhesive properties of other adhesion molecules, thus promoting remodeling of synaptic membranes (6,10). Consistent with this interpretation, evidence has accumulated in recent years suggesting that LTP not only involves a change in synaptic function, but is also likely to be associated with remodeling of synaptic structures (11)(12)(13)(14). In addition, several molecules involved during development in neurite outgrowth and synapse formation have been implicated in LTP.…”

mentioning

confidence: 61%

Brain-derived neurotrophic factor restores long-term potentiation in polysialic acid-neural cell adhesion molecule-deficient hippocampus

Michelet

Djebbara-Hannas²,

Jourdain³

et al. 2000

Proc. Natl. Acad. Sci. U.S.A.

193

125

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The neural cell adhesion molecule (NCAM) and its polysialylated form (PSA-NCAM) contribute to long-term potentiation (LTP) in the CA1 hippocampus. Here we report that the deficient LTP found in slices prepared from NCAM knockout mice and in organotypic slice cultures treated with Endo-N, an enzyme that cleaves the PSA moiety of NCAM, can be rescued by brain-derived neurotrophic factor (BDNF). This effect is not reproduced by nerve growth factor, but can be obtained with high concentrations of NT4/5. The effect of BDNF cannot be accounted for by modifications of N-methyl-D-aspartate receptor-dependent responses or of high-frequency bursts. PSA-NCAM, however, could directly interact with BDNF. Exogenous application of PSA residues or recombinant PSA-NCAM also prevents LTP. Furthermore trkB phosphorylation, and thus BDNF signaling, is reduced in both NCAM knockout mice and Endo-N-treated slice cultures. These results suggest that one action of PSA-NCAM could be to sensitize pyramidal neurons to BDNF, thereby modulating activity-dependent synaptic plasticity

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“…(A simplified related calculation, where all particles are treated as scalars can be found in Ref. [12].) The calculation is performed in Minkowski spacetime and the gravitational field is described by a Newtonian-like central force.…”

Section: Introductionmentioning

confidence: 99%

Semiclassical approach to the decay of protons in circular motion under the influence of gravitational fields

Fregolente¹,

Matsas²,

Vanzella³

2006

Phys. Rev. D

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We investigate the possible decay of protons in geodesic circular motion around neutral compact objects. Weak and strong decay rates and the associated emitted powers are calculated using a semiclassical approach. Our results are discussed with respect to distinct ones in the literature, which consider the decay of accelerated protons in electromagnetic fields. A number of consistency checks are presented along the paper.

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Decay of accelerated particles

Cited by 62 publications

References 12 publications

The Unruh effect and its applications

The Unruh effect and its applications

Brain-derived neurotrophic factor restores long-term potentiation in polysialic acid-neural cell adhesion molecule-deficient hippocampus

Semiclassical approach to the decay of protons in circular motion under the influence of gravitational fields

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