Results 121 to 130 of about 5,384,290 (367)
Does quantum chaos exist? (A quantum Lyapunov exponents approach.) [PDF]
arXiv, 1998 We shortly review the progress in the domain of deterministic chaos for quantum dynamical systems. With the appropriately extended definition of quantum Lyapunov exponent we analyze various quantum dynamical maps. It is argued that, within Quantum Mechanics, irregular evolution for properly chosen observables can coexist with regular and predictable ...
arxiv
Harnessing disordered quantum dynamics for machine learning [PDF]
, 2016 Quantum computer has an amazing potential of fast information processing. However, realisation of a digital quantum computer is still a challenging problem requiring highly accurate controls and key application strategies.
K. Fujii, K. Nakajima
semanticscholar +1 more source
An Introduction to Operational Quantum Dynamics [PDF]
Open systems & information dynamics, 2017 In the summer of 2016, physicists gathered in Torun, Poland for the 48th annual Symposium on Mathematical Physics. This Symposium was special; it celebrated the 40th anniversary of the discovery of the Gorini-Kossakowski-Sudarshan-Lindblad master ...
Simon Milz, F. A. Pollock, K. Modi
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates that in sputter‐deposited Tb3Fe5O12 (TbIG)/nonmagnetic metal (NM) heterostructures, the interfacial Dzyaloshinskii–Moriya Interaction (DMI) originates at the TbIG/NM interface. Furthermore, measurements suggest a significant interfacial DMI arising from a second non‐local interface, created by inserting a Cu spacer layer between
Stefano Fedel +6 more
wiley +1 more source
Quantum Degrees of Freedom, Quantum Integrability and Entanglment Generators [PDF]
arXiv, 2010 Dynamical algebra notion of quantum degrees of freedom is utilized to study the relation between quantum dynamical integrability and generalized entanglement. It is argued that a quantum dynamical system generates generalized entanglement by internal dynamics if and only if it is quantum non-integrable.
arxiv
Fundamental limits on quantum dynamics based on entropy change [PDF]
, 2017 It is well known in the realm of quantum mechanics and information theory that the entropy is non-decreasing for the class of unital physical processes. However, in general, the entropy does not exhibit monotonic behavior.
Siddhartha Das +3 more
semanticscholar +1 more source
Non-Markovian Dynamics of Quantum Discord
, 2010 We evaluate the quantum discord dynamics of two qubits in independent and common non-Markovian environments. We compare the dynamics of entanglement with that of quantum discord.
Arruda, L. G. E. +4 more
core +1 more source
Advanced Functional Materials, EarlyView.This work investigates the Nernst effect in the Kagome magnet ErMn6Sn6 which exhibits both topological and anomalous Nernst effects with the anomalous Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K. This value surpasses that of most canted antiferromagnetic materials, making ErMn6Sn6 a promising candidate for advancing thermoelectric devices based on
Olajumoke Oluwatobiloba Emmanuel +2 more
wiley +1 more source
Thermodynamic resource theories, non-commutativity and maximum entropy principles
New Journal of Physics, 2017 We discuss some features of thermodynamics in the presence of multiple conserved quantities. We prove a generalisation of Landauer principle illustrating tradeoffs between the erasure costs paid in different ‘currencies’.
Matteo Lostaglio +2 more
doaj +1 more source
Dynamical systems where time is a quantum group and quantum ergodicity [PDF]
arXiv, 2003 We define dynamical systems where time is a quantum group. We give the definition of quantum ergodicity for the introduced dynamical system with noncommutative (or quantum) time, and discuss the examples.
arxiv