Zobrazeno 1 - 10
of 668
pro vyhledávání: '"Moretti, V"'
Publikováno v:
Phys. Rev. A 102, 063708 (2020)
In single-particle or intraparticle entanglement, two degrees of freedom of a single particle, e.g., momentum and polarization of a single photon, are entangled. Single-particle entanglement (SPE) provides a source of non classical correlations which
Externí odkaz:
http://arxiv.org/abs/2003.09961
Autor:
Dei Cas, A., Micheli, M. M., Aldigeri, R., Gardini, S., Ferrari-Pellegrini, F., Perini, M., Messa, G., Antonini, M., Spigoni, V., Cinquegrani, G., Vazzana, A., Moretti, V., Caffarra, P., Bonadonna, R. C.
Publikováno v:
Journal of Endocrinological Investigation; Sep2024, Vol. 47 Issue 9, p2339-2349, 11p
Publikováno v:
Comm.Math.Phys.285:1129-1163,2009; Commun.Math.Phys.285:1129-1163,2009
As a starting point, we state some relevant geometrical properties enjoyed by the cosmological horizon of a certain class of Friedmann-Robertson-Walker backgrounds. Those properties are generalised to a larger class of expanding spacetimes $M$ admitt
Externí odkaz:
http://arxiv.org/abs/0712.1770
Autor:
Moretti, V.
Publikováno v:
Commun.Math.Phys.279:31-75,2008
This paper continues the analysis of the quantum states determined by the universal asymptotic structure of four-dimensional asymptotically flat vacuum spacetimes at null infinity M. It is now focused on the quantum state lambda_M, of a massles confo
Externí odkaz:
http://arxiv.org/abs/gr-qc/0610143
Autor:
Moretti, V., Pinamonti, N.
Publikováno v:
Entropy 12:1833-1854,2010
We focus on quantization of the metric of a black hole restricted to the Killing horizon with universal radius $r_0$. After imposing spherical symmetry and after restriction to the Killing horizon, the metric is quantized employing the chiral current
Externí odkaz:
http://arxiv.org/abs/gr-qc/0507050
Publikováno v:
Rev.Math.Phys. 18 (2006) 349-416
Scalar QFT on the boundary $\Im^+$ at null infinity of a general asymptotically flat 4D spacetime is constructed using the algebraic approach based on Weyl algebra associated to a BMS-invariant symplectic form. The constructed theory is invariant und
Externí odkaz:
http://arxiv.org/abs/gr-qc/0506069
Autor:
Moretti, V., Pinamonti, N.
Publikováno v:
J.Math.Phys. 46 (2005) 062303
Local scalar QFT (in Weyl algebraic approach) is constructed on degenerate semi-Riemannian manifolds corresponding to Killing horizons in spacetime. Covariance properties of the $C^*$-algebra of observables with respect to the conformal group $PSL(2,
Externí odkaz:
http://arxiv.org/abs/hep-th/0407256
Autor:
Moretti, V., Pinamonti, N.
Publikováno v:
J.Math.Phys. 45 (2004) 257
Using the holographic machinery built up in a previous work, we show that the hidden SL(2,R) symmetry of a scalar quantum field propagating in a Rindler spacetime admits an enlargement in terms of a unitary positive-energy representation of Virasoro
Externí odkaz:
http://arxiv.org/abs/hep-th/0307021
Autor:
Moretti, V., Pinamonti, N.
Publikováno v:
J.Math.Phys. 45 (2004) 230
It is shown that it is possible to define quantum field theory of a massless scalar free field on the Killing horizon of a 2D-Rindler spacetime. Free quantum field theory on the horizon enjoys diffeomorphism invariance and turns out to be unitarily a
Externí odkaz:
http://arxiv.org/abs/hep-th/0304111
Autor:
Moretti, V., Pinamonti, N.
It is argued that free QFT can be defined on the event horizon of a Schwarzschild-like spacetime and that this theory is unitarily and algebraically equivalent to QFT in the bulk (near the horizon). Under that unitary equivalence the bulk hidden SL(2
Externí odkaz:
http://arxiv.org/abs/hep-th/0304102