Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Scandurra M"'
Publikováno v:
Phys.Lett.B572:196-201,2003
We study the Casimir problem as the limit of a conventional quantum field theory coupled to a smooth background. The Casimir energy diverges in the limit that the background forces the field to vanish on a surface. We show that this divergence cannot
Externí odkaz:
http://arxiv.org/abs/hep-th/0207205
Publikováno v:
Nucl.Phys. B645 (2002) 49-84
The Casimir problem is usually posed as the response of a fluctuating quantum field to externally imposed boundary conditions. In reality, however, no interaction is strong enough to enforce a boundary condition on all frequencies of a fluctuating fi
Externí odkaz:
http://arxiv.org/abs/hep-th/0207120
Autor:
Scandurra, M.
I present a formulation of the second law of thermodynamics in the presence of black holes which makes use of the efficiency of an ideal machine extracting heat cyclically from a black hole. The Carnot coefficient is found and it is shown to be a sim
Externí odkaz:
http://arxiv.org/abs/gr-qc/0105089
Autor:
Scandurra, M.
An extension of the fundamental laws of thermodynamics and of the concept of entropy to the ground state fluctuations of the quantum fields is studied and some new results are found. At the end a device to extract energy from the vacuum recently prop
Externí odkaz:
http://arxiv.org/abs/hep-th/0104127
Autor:
Scandurra, M.
The response of vacuum to the presence of external conditions is the subject of this work. We consider a generalization of the Casimir effect in the presence of curved boundaries on which a sharp potential is concentrated. The profile of the potentia
Externí odkaz:
http://arxiv.org/abs/hep-th/0011151
Autor:
Scandurra, M.
Publikováno v:
Phys.Rev. D62 (2000) 085024
We present a calculation of the ground state energy of massive spinor fields and massive scalar fields in the background of an inhomogeneous magnetic string with potential given by a delta function. The zeta functional regularization is used and the
Externí odkaz:
http://arxiv.org/abs/hep-th/0003143
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