Zobrazeno 1 - 10
of 4 607
pro vyhledávání: '"Strunz, A"'
Autor:
Beyer, Konstantin, Strunz, Walter T.
The classical Jarzynski equality establishes an exact relation between the stochastic work performed on a system driven out of thermal equilibrium and the free energy difference in a corresponding quasi-static process. This fluctuation theorem bears
Externí odkaz:
http://arxiv.org/abs/2408.13417
Electric vehicles (EV) are an important part of future sustainable transportation. The increasing integration of EV charging stations (EVCSs) in the existing power grids require new scaleable control algorithms that maintain the stability and resilie
Externí odkaz:
http://arxiv.org/abs/2407.10544
We provide a new perspective on quantum dynamical phase transitions (DPTs) by explaining their origin in terms of caustics that form in the Fock space representation of the many-body state over time, using the fully connected transverse field Ising m
Externí odkaz:
http://arxiv.org/abs/2407.10529
Autor:
Strunz, Pavel
Orthogonal coordinate systems enable expressing the boundary conditions of differential equations in accord with the physical boundaries of the problem. It can significantly simplify calculations. The orthogonal similar oblate spheroidal (SOS) coordi
Externí odkaz:
http://arxiv.org/abs/2405.17063
Gradient descent algorithms on Riemannian manifolds have been used recently for the optimization of quantum channels. In this contribution, we investigate the influence of various regularization terms added to the cost function of these gradient desc
Externí odkaz:
http://arxiv.org/abs/2404.19659
We present a fully quantum dynamical treatment of a quantum heat engine and its baths based on the Hierarchy of Pure States (HOPS), an exact and general method for open quantum system dynamics. We show how the change of the bath energy and the intera
Externí odkaz:
http://arxiv.org/abs/2402.06039
Publikováno v:
ANNALEN DER PHYSIK 2023, 2300304
In classical stochastic theory, the joint probability distributions of a stochastic process obey by definition the Kolmogorov consistency conditions. Interpreting such a process as a sequence of physical measurements with probabilistic outcomes, thes
Externí odkaz:
http://arxiv.org/abs/2312.06545
Non-Markovian processes may arise in physics due to memory effects of environmental degrees of freedom. For quantum non-Markovianity, it is an ongoing debate to clarify whether such memory effects have a verifiable quantum origin, or whether they mig
Externí odkaz:
http://arxiv.org/abs/2310.01205
Autor:
Strunz, Pavel
Publikováno v:
Eur. Phys. J. Plus 139, 409 (2024)
Curvilinear coordinate systems distinct from the rectangular Cartesian coordinate system are particularly valuable in the field calculations as they facilitate the expression of boundary conditions of differential equations in a reasonably simple way
Externí odkaz:
http://arxiv.org/abs/2308.11398
Approaching the long-time dynamics of non-Markovian open quantum systems presents a challenging task if the bath is strongly coupled. Recent proposals address this problem through a representation of the so-called process tensor in terms of a tensor
Externí odkaz:
http://arxiv.org/abs/2307.01802