Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Nikolić, Hrvoje"'
Autor:
Nikolic, Hrvoje
Publikováno v:
Class. Quantum Grav. 41 (2024) 205016
We resolve black hole information paradox within semiclassical gravity, in a manner that does not depend on details of unknown quantum gravity. Our crucial insight is that outgoing Hawking particles are physical only far from the black hole horizon,
Externí odkaz:
http://arxiv.org/abs/2405.05617
Autor:
Nikolic, Hrvoje
Publikováno v:
Physica A 641, 129757 (2024)
We develop a general formulation of quantum statistical mechanics in terms of probability currents that satisfy continuity equations in the multi-particle position space, for closed and open systems with a fixed number of particles. The continuity eq
Externí odkaz:
http://arxiv.org/abs/2308.10500
Autor:
Jurić, Tajron, Nikolić, Hrvoje
Publikováno v:
Universe 10, 35 (2024)
We develop a new method for finding the quantum probability density of arrival at the detector. The evolution of the quantum state restricted to the region outside of the detector is described by a restricted Hamiltonian that contains a non-hermitian
Externí odkaz:
http://arxiv.org/abs/2307.01501
Autor:
Nikolic, Hrvoje
Publikováno v:
Fortschr. Phys. 71, 2300026 (2023)
Conceptual difficulties in semiclassical and quantum gravity arise from diffeomorphism invariance of classical general relativity. With a motivation to shed some light on these difficulties, we study a class of toy models for which one-dimensional di
Externí odkaz:
http://arxiv.org/abs/2301.04448
Autor:
Jurić, Tajron, Nikolić, Hrvoje
Publikováno v:
Fortschr. Phys. 71, 2300014 (2023)
Classical measurements are passive, in the sense that they do not affect the physical properties of the measured system. Normally, quantum measurements are not passive in that sense. In the infinite dimensional Hilbert space, however, we find that qu
Externí odkaz:
http://arxiv.org/abs/2207.09140
Autor:
Nikolic, Hrvoje
Publikováno v:
Found. Phys. 52, 80 (2022)
Since Bohmian mechanics is explicitly nonlocal, it is widely believed that it is very hard, if not impossible, to make Bohmian mechanics compatible with relativistic quantum field theory (QFT). I explain, in simple terms, that it is not hard at all t
Externí odkaz:
http://arxiv.org/abs/2205.05986
Autor:
Nikolic, Hrvoje
Publikováno v:
Am. J. Phys. 90, 841 (2022)
In Supplee's submarine paradox, a naive argument based on Lorentz contraction leads to a contradiction that a fast submarine should sink in the water's reference frame but float in the submarine's reference frame. Due to the submarine's rigidity cons
Externí odkaz:
http://arxiv.org/abs/2112.11162
Autor:
Bilić, Neven, Nikolić, Hrvoje
Publikováno v:
Universe 2021, 7, 413
We study the conditions under which an analog acoustic geometry of a relativistic fluid in flat spacetime can take the same form as the Schwarzschild black hole geometry. We find that the speed of sound must necessarily be equal to the speed of light
Externí odkaz:
http://arxiv.org/abs/2109.02880
Autor:
Jurić, Tajron, Nikolić, Hrvoje
Publikováno v:
Eur. Phys. J. Plus 137, 631 (2022)
We further develop the general theory of quantum time distributions introduced in arXiv:2010.07575 and apply it to find the distribution of arrival times at the detector. Even though the Hamiltonian in the absence of detector is hermitian, the time e
Externí odkaz:
http://arxiv.org/abs/2107.08777
Autor:
Jurman, Danijel, Nikolic, Hrvoje
Publikováno v:
Phys. Lett. A 396 (2021) 127247
We develop a general theory of the time distribution of quantum events, applicable to a large class of problems such as arrival time, dwell time and tunneling time. A stopwatch ticks until an awaited event is detected, at which time the stopwatch sto
Externí odkaz:
http://arxiv.org/abs/2010.07575