Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Alessandro Bravetti"'
Publikováno v:
Quantum Reports, Vol 3, Iss 4, Pp 664-683 (2021)
Starting from the geometric description of quantum systems, we propose a novel approach to time-independent dissipative quantum processes according to which energy is dissipated but the coherence of the states is preserved. Our proposal consists of e
Externí odkaz:
https://doaj.org/article/850db4e3ed0447b593fcc3a8420c3726
Publikováno v:
Entropy, Vol 25, Iss 7, p 1082 (2023)
We use a formulation of Noether’s theorem for contact Hamiltonian systems to derive a relation between the thermodynamic entropy and the Noether invariant associated with time-translational symmetry. In the particular case of thermostatted systems
Externí odkaz:
https://doaj.org/article/fead8a74b7c843c88ef69d7840c2087b
Autor:
Alessandro Bravetti, Pablo Padilla
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)
Abstract Cooperation is a central mechanism for evolution. It consists of an individual paying a cost in order to benefit another individual. However, natural selection describes individuals as being selfish and in competition among themselves. There
Externí odkaz:
https://doaj.org/article/bdea6377a8ad49feae0dd938ac5435eb
Publikováno v:
Mathematics, Vol 9, Iss 16, p 1960 (2021)
Starting from a contact Hamiltonian description of Liénard systems, we introduce a new family of explicit geometric integrators for these nonlinear dynamical systems. Focusing on the paradigmatic example of the van der Pol oscillator, we demonstrate
Externí odkaz:
https://doaj.org/article/38be77b9e8b84a83a664f0a513f2f778
Publikováno v:
Physics Letters B, Vol 774, Iss C, Pp 417-424 (2017)
Motivated by black holes thermodynamics, we consider the zeroth law of thermodynamics for systems whose entropy is a quasi-homogeneous function of the extensive variables. We show that the generalized Gibbs–Duhem identity and the Maxwell constructi
Externí odkaz:
https://doaj.org/article/08642f366dc644c499c9f3f78b99b4fb
Publikováno v:
Entropy, Vol 17, Iss 9, Pp 6150-6168 (2015)
In this work, we show that the thermodynamic phase space is naturally endowed with a non-integrable connection, defined by all of those processes that annihilate the Gibbs one-form, i.e., reversible processes. We argue that such a connection is invar
Externí odkaz:
https://doaj.org/article/4dff8022301e4160b6a75a833b82f504
Autor:
Alessandro Bravetti
Publikováno v:
Entropy, Vol 19, Iss 10, p 535 (2017)
We give a short survey on the concept of contact Hamiltonian dynamics and its use in several areas of physics, namely reversible and irreversible thermodynamics, statistical physics and classical mechanics. Some relevant examples are provided along t
Externí odkaz:
https://doaj.org/article/bfb6c44bcc104fd6b23958b6bba9c114
Publikováno v:
Advances in High Energy Physics, Vol 2013 (2013)
We consider the thermodynamics and geometrothermodynamics of the Myers-Perry black holes in five dimensions for three different cases, depending on the values of the angular momenta. We follow Davies approach to study the thermodynamics of black hole
Externí odkaz:
https://doaj.org/article/a8619bb99f1a4519a767b4e59f043215
Publikováno v:
Quantum Reports, Vol 3, Iss 42, Pp 664-683 (2021)
Quantum Reports
Volume 3
Issue 4
Pages 42-683
Quantum Reports
Volume 3
Issue 4
Pages 42-683
Starting from the geometric description of quantum systems, we propose a novel approach to time-independet dissipative quantum processes according to which the energy is dissipated but the coherence of the states is preserved. Our proposal consists o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a0c2fd2ef43a4693d93b165dba2abf3
https://www.mdpi.com/2624-960X/3/4/42
https://www.mdpi.com/2624-960X/3/4/42
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
We prove that, under some natural conditions, Hamiltonian systems on a contact manifold $C$ can be split into a Reeb dynamics on an open subset of $C$ and a Liouville dynamics on a submanifold of $C$ of codimension 1. For the Reeb dynamics we find an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45cb2c3e8b9439a981dcd2ca9b6269da
