Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Hosoya, Akio"'
Autor:
Hosoya, Akio, Fujii, Shunsuke
We revisit the old problem of the energy-momentum tensor in general relativistic field theories. On the basis of the general covariance we derive a simple equation for the Hilbert and Noether energy-momentum tensors for the scalar and electromagnetic
Externí odkaz:
http://arxiv.org/abs/2403.17457
Autor:
Hosoya, Akio, Fujii, Shunsuke
Assuming the minimal time to send a bit of information in the Einstein clock synchronization of the two clocks located at different positions, we introduce the extended metric to the information space. This modification of relativity changes the red
Externí odkaz:
http://arxiv.org/abs/1703.03971
Autor:
Hosoya, Akio
The real part of the weak value is identified as the conditional Bayes probability through the quantum analog of the Bayes relation. We present an explicit protocol to get the the weak values in a simple Mach-Zehnder interferometer model and derive t
Externí odkaz:
http://arxiv.org/abs/1509.07198
Publikováno v:
Phys. Rev. A 87, 046102 (2013)
It is pointed out that the "counter example" presented in the Comment is a family of probe wave functions which are increasingly broad as the shift becomes large. Furthermore, the author's variational calculation is not correct in the sense that we h
Externí odkaz:
http://arxiv.org/abs/1304.1352
Publikováno v:
Scientific Reports 5, 17011 (2015)
The resolution of the Maxwell's demon paradox linked thermodynamics with information theory through information erasure principle. By considering a demon endowed with a Turing-machine consisting of a memory tape and a processor, we attempt to explore
Externí odkaz:
http://arxiv.org/abs/1301.4854
Publikováno v:
Phys.Rev.D86: 083539,2012
Penrose conjectured a connection between entropy and Weyl curvature of the Universe. This is plausible, as the almost homogeneous and isotropic Universe at the onset of structure formation has negligible Weyl curvature, which then grows (relative to
Externí odkaz:
http://arxiv.org/abs/1208.3376
Autor:
Kanai, Yuki, Hosoya, Akio
To see the back reaction of the Hawking radiation in a dynamical spacetime of the spherical gravitational collapse, we explicitly calculate the weak value of the energy-momentum tensor of the massless scalar field. The background geometry of a collap
Externí odkaz:
http://arxiv.org/abs/1205.0118
Publikováno v:
Phys. Rev. A 85, 052110 (2012)
The weak measurement proposed by Aharonov and his colleagues extracts information of a physical quantity of the system by the post selection as the shifts of the argument of the probe wavefunction. The shift is called the weak value and is larger for
Externí odkaz:
http://arxiv.org/abs/1203.0827
Publikováno v:
Phys. Rev. E 84, 061117 (2011)
In an asymmetric Szilard engine model of Maxwell's demon, we show the equivalence between information theoretical and thermodynamic entropies when the demon erases information optimally. The work gain by the engine can be exactly canceled out by the
Externí odkaz:
http://arxiv.org/abs/1110.4732
Autor:
Hosoya, Akio, Koga, Minoru
Publikováno v:
J.Phys.A44:415303,2011
We characterize a value of an observable by a `sum rule' for generally non-commuting observables and a `product rule' when restricted to a maximal commuting subalgebra of observables together with the requirement that the value is unity for the proje
Externí odkaz:
http://arxiv.org/abs/1104.1873