Results 41 to 50 of about 644,667 (272)

Spectroscopic studies in open quantum systems [PDF]

, 2000
The spectroscopic properties of an open quantum system are determined by the eigenvalues and eigenfunctions of an effective Hamiltonian H consisting of the Hamiltonian H_0 of the corresponding closed system and a non-Hermitian correction term W arising ...
Persson, E., Pichugin, K., Rotter, I., Seba, P.   +3 more
core   +2 more sources

Open quantum systems for quarkonia [PDF]

International Journal of Modern Physics A, 2021
I review recent applications of the open quantum system framework in the understanding of quarkonium suppression in heavy-ion collisions, which has been used as a probe of the quark–gluon plasma for decades. The derivation of the Lindblad equations for quarkonium in both the quantum Brownian motion and the quantum optical limits and their ...
openaire   +2 more sources

Open Quantum Systems’ Decay across Time [PDF]

Physical Review Letters, 2021
The description of an open quantum system's decay almost always requires several approximations as to remain tractable. Here, we first revisit the meaning, domain and seeming contradictions of a few of the most widely used of such approximations: semi-group Markovianity, linear response theory, Wigner--Weisskopf and rotating-wave approximation ...
Juliane Klatt, Chahan M. Kropf, Stefan Y. Buhmann   +2 more
openaire   +4 more sources

Modulating thermal robustness and entanglement distribution in a two-dimensional dissipative spin system using impurities

Results in Physics, 2022
We consider a finite two-dimensional Heisenberg triangular spin lattice coupled to a dissipative Markovian environment at finite temperature in the presence of an external uniform magnetic field.
Gehad Sadiek, Maryam AlQasimi
doaj   +1 more source

Pure Stationary States of Open Quantum Systems

, 2003
Using Liouville space and superoperator formalism we consider pure stationary states of open and dissipative quantum systems. We discuss stationary states of open quantum systems, which coincide with stationary states of closed quantum systems.
A. Sandulescu, C. Anastopoulos, E.P. Davies, G. Emch, G. Lindblad, G. Lindblad, G. Lindblad, G. Sauermann, H. Gabriel, H. Primas, H. Spohn, H. Spohn, H. Spohn, J. Schwinger, J. Schwinger, J.A. Crawford, J.M.T. Thompson, M. Schmutz, M. Suzuki, T. Arimitsu, T. Dittrich, U. Fano, V. Chernyak, V.E. Tarasov, V.E. Tarasov, V.E. Tarasov, V.E. Tarasov, V.E. Tarasov, Vasily E. Tarasov   +28 more
core   +1 more source

Adiabatic Quantum Search in Open Systems [PDF]

, 2016
Adiabatic quantum algorithms represent a promising approach to universal quantum computation. Whilst in a closed system these algorithms are limited by avoided level crossings, where the gap becomes exponentially small in the system size, their ...
Gopalakrishnan, Sarang, Knap, Michael, Lukin, Mikhail D., Wild, Dominik S., Yao, Norman Y.   +4 more
core   +3 more sources

Open-system quantum error correction [PDF]

Physical Review A, 2018
v1: 11 pages.
Len, Yink Loong, Ng, Hui Khoon
openaire   +2 more sources

High fidelity quantum gates of trapped ions in the presence of motional heating

New Journal of Physics, 2016
We describe entangling quantum gates for trapped ions mediated by a dissipative bus mode and show that suitably designed, polychromatic control pulses decrease ion-phonon entanglement substantially while maintaining the mediated interaction.
Farhang Haddadfarshi, Florian Mintert
doaj   +1 more source

Simulation-assisted learning of open quantum systems [PDF]

Quantum
Models for open quantum systems, which play important roles in electron transport problems and quantum computing, must take into account the interaction of the quantum system with the surrounding environment.
Ke Wang, Xiantao Li
doaj   +1 more source

Embedding the Yang-Lee quantum criticality in open quantum systems

Physical Review Research, 2022
The Yang-Lee edge singularity is a quintessential nonunitary critical phenomenon characterized by anomalous scaling. However, an imaginary magnetic field involved in this phenomenon makes its physical implementation nontrivial.
Norifumi Matsumoto, Masaya Nakagawa, Masahito Ueda   +2 more
doaj   +1 more source