Zobrazeno 1 - 10
of 263
pro vyhledávání: '"Diósi Lajos"'
Autor:
Diósi, Lajos
We consider $N$ clones of the quantized world, interacting with each other via quantum gravity, coupled by the downscaled Newton constant $G/N$. In the limit $N\rightarrow\infty$, we obtain the semiclassical Einstein equation for every single clonewo
Externí odkaz:
http://arxiv.org/abs/2412.05740
Autor:
Diósi, Lajos
We show that the minimum entropy production in near-reversible quantum state transport along a path is a simple function of the path length measured according to the Fisher--Bures metrics. Consequently, the minimum entropy production along a geodesic
Externí odkaz:
http://arxiv.org/abs/2410.04307
Autor:
Kristian Piscicchia, Alessio Porcelli, Angelo Bassi, Massimiliano Bazzi, Mario Bragadireanu, Michael Cargnelli, Alberto Clozza, Luca De Paolis, Raffaele Del Grande, Maaneli Derakhshani, Diósi Lajos, Sandro Donadi, Carlo Guaraldo, Mihai Iliescu, Matthias Laubenstein, Simone Manti, Johann Marton, Marco Miliucci, Fabrizio Napolitano, Alessandro Scordo, Francesco Sgaramella, Diana Laura Sirghi, Florin Sirghi, Oton Vazquez Doce, Johann Zmeskal, Catalina Curceanu
Publikováno v:
Entropy, Vol 25, Iss 2, p 295 (2023)
Models of dynamical wave function collapse consistently describe the breakdown of the quantum superposition with the growing mass of the system by introducing non-linear and stochastic modifications to the standard Schrödinger dynamics. Among them,
Externí odkaz:
https://doaj.org/article/6f30320e8fac40b5a35099889bd2af14
Autor:
Diósi, Lajos
Publikováno v:
Phys. Rev. D 110, 084052 (2024)
We discuss the Hamiltonian hybrid coupling between a classical and a quantum subsystem. If applicable to classical gravity coupled to quantized matter, this hybrid theory might realize a captivating `postquantum' alternative to full quantum-gravity.
Externí odkaz:
http://arxiv.org/abs/2404.07723
Autor:
Diósi, Lajos
Publikováno v:
Rep.Math.Phys. 94, 143 (2024)
The covariant form of the multivariable diffusion-drift process is described by the covariant Fokker--Planck equation using the standard toolbox of Riemann geometry. The covariant form of the equivalent Langevin stochastic differential equation is lo
Externí odkaz:
http://arxiv.org/abs/2310.17314
Autor:
Diósi, Lajos
Publikováno v:
J.Phys.Conf.Ser. 2533, 012005-(5) (2023)
When about half a century ago the concept of universal spontaneous collapse of the wave function was conceived it was an attempt to alter standard non-relativistic quantum physics. As such, it was largely ignored by relativistic field theory and quan
Externí odkaz:
http://arxiv.org/abs/2303.06633
Autor:
Diósi, Lajos
Publikováno v:
Phys.Rev. A107, 062206-10 (2023)
A concise and self-contained derivation of hybrid quantum-classical dynamics is given in terms of Markovian master equations. Many previously known results are re-derived, revised, some of them completed or corrected. Using as simple method as possib
Externí odkaz:
http://arxiv.org/abs/2302.13418
Autor:
Piscicchia, Kristian, Donadi, Sandro, Manti, Simone, Bassi, Angelo, Derakhshani, Maaneli, Diosi, Lajos, Curceanu, Catalina
In this work the spontaneous electromagnetic radiation from atomic systems, induced by dynamical wave-function collapse, is investigated in the X-rays domain. Strong departures are evidenced with respect to the simple cases considered until now in th
Externí odkaz:
http://arxiv.org/abs/2301.09920
Autor:
Di Bartolomeo, Giovanni, Carlesso, Matteo, Piscicchia, Kristian, Curceanu, Catalina, Derakhshani, Maaneli, Diósi, Lajos
Publikováno v:
Phys. Rev. A 108, 012202 (2023)
We construct and study the simplest universal dissipative Lindblad master equation for many-body systems with the purpose of a new dissipative extension of existing nonrelativistic theories of fundamental spontaneous decoherence and spontaneous wave
Externí odkaz:
http://arxiv.org/abs/2301.07661
Autor:
Rouillard, Amy, Reddy, Anirudh, Bassa, Humairah, Maharaj, Shamik, Diosi, Lajos, Konrad, Thomas
We present a formulation of measurement-based feedback control of a single quantum particle in one spatial dimension. An arbitrary linear combination of the position and momentum of the particle is continuously monitored, and feedback proportional to
Externí odkaz:
http://arxiv.org/abs/2212.12292