Zobrazeno 1 - 10
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pro vyhledávání: '"de Paola R"'
Using the heat kernel method and the analytic continuation of the zeta function, we calculate the canonical and improved vacuum stress tensors, ${T_{\mu \nu}(\vec{x})}$ and ${\Theta_{\mu \nu}(\vec{x})}$, associated with a massless scalar field confin
Externí odkaz:
http://arxiv.org/abs/hep-th/0110290
Autor:
De Paola, R. D. M., Svaiter, N. F.
In this work we consider a quantum analog of Newton's bucket experiment in a flat spacetime: we take an Unruh-DeWitt detector in interaction with a real massless scalar field. We calculate the detector's excitation rate when it is uniformly rotating
Externí odkaz:
http://arxiv.org/abs/gr-qc/0009058
Publikováno v:
Class.Quant.Grav.17:4241-4254,2000; Erratum-ibid.18:205,2001
In this work we compare the quantization of a massless scalar field in an inertial frame with the quantization in a rotating frame. We used the Trocheries-Takeno mapping to relate measurements in the inertial and the rotating frames. An exact solutio
Externí odkaz:
http://arxiv.org/abs/hep-th/0005171
Publikováno v:
Class.Quant.Grav.16:3047-3055,1999
We analyse the properties of a fluid generating a spinning cosmic string spacetime with flat limiting cases corresponding to a constant angular momentum in the infinite past and static configuration in the infinite future. The spontaneous loss of ang
Externí odkaz:
http://arxiv.org/abs/gr-qc/9908003
Publikováno v:
Mod.Phys.Lett. A14 (1999) 2353-2362
The zero-point energy of a massless fermion field in the interior of two parallel plates in a D-dimensional space-time at zero temperature is calculated. In order to regularize the model, a mix between dimensional and zeta-function regularization pro
Externí odkaz:
http://arxiv.org/abs/hep-th/9905039
Publikováno v:
Int.J.Mod.Phys. A14 (1999) 2077-2090
The renormalized energy density of a massless scalar field defined in a D-dimensional flat spacetime is computed in the presence of "soft" and "semihard" boundaries, modeled by some smoothly increasing potential functions. The sign of the renormalize
Externí odkaz:
http://arxiv.org/abs/hep-th/9807043
Publikováno v:
Nuovo Cim.B113:1331-1337,1998
The spontaneous loss of angular momentum of a spinning cosmic string due to particle emission is discussed. The rate of particle production between two assymptotic spacetimes: the spinning cosmic string spacetime in the infinite past and a non-spinni
Externí odkaz:
http://arxiv.org/abs/gr-qc/9705049
Autor:
De Paola, R., Svaiter, N. F.
We consider a monopole detector interacting with a massive scalar field. The radiative processes are discussed from the accelerated frame point of view. After this, we obtain the Minkowski vacuum stress tensor measured by the accelerated observer usi
Externí odkaz:
http://arxiv.org/abs/gr-qc/9611013
Autor:
Sevi, A a, *, Napolitano, F b, Casamassima, D c, Annicchiarico, G d, Quarantelli, T e, De Paola, R d
Publikováno v:
In Applied Animal Behaviour Science 1999 64(4):249-259
Publikováno v:
Journal of Chemical Physics; 7/15/1987, Vol. 87 Issue 2, p1361, 6p