Results 1 to 10 of about 58,975 (287)

Tunneling, dissipation, and superfluid transition in quantum Hall bilayers

open access: yes, 2004
We study bilayer quantum Hall systems at total Landau level filling factor $\nu=1$ in the presence of interlayer tunneling and coupling to a dissipative normal fluid.
B. Abeles   +5 more
core   +1 more source

Pure Stationary States of Open Quantum Systems

open access: yes, 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   +28 more
core   +1 more source

Topology by Dissipation in Atomic Quantum Wires

open access: yes, 2011
Robust edge states and non-Abelian excitations are the trademark of topological states of matter, with promising applications such as "topologically protected" quantum memory and computing.
Baranov, M. A.   +3 more
core   +1 more source

Sudden vanishing and reappearance of nonclassical effects: General occurrence of finite-time decays and periodic vanishings of nonclassicality and entanglement witnesses

open access: yes, 2011
Analyses of phenomena exhibiting finite-time decay of quantum entanglement have recently attracted considerable attention. Such decay is often referred to as sudden vanishing (or sudden death) of entanglement, which can be followed by its sudden ...
A. Lukš   +11 more
core   +1 more source

Transport through a quantum critical system: A thermodynamically consistent approach

open access: yesPhysical Review Research, 2020
Currents through quantum systems may probe nonanalyticities in quantum-critical many-body ground states. For a large class of dissipative quantum critical systems we show that it is possible to obtain the reduced system dynamics in the vicinity of ...
C. W. Wächtler, G. Schaller
doaj   +1 more source

Sign Reversals of ac Magnetoconductance in Isolated Quantum Dots

open access: yes, 1997
We have measured the electromagnetic response of micron-size isolated mesoscopic GaAs/GaAlAs square dots down to temperature T=16mK, by coupling them to an electromagnetic micro-resonator.
A. Kamenev   +31 more
core   +1 more source

Deconstructing non-dissipative non-Dirac-hermitian relativistic quantum systems

open access: yes, 2011
A method to construct non-dissipative non-Dirac-hermitian relativistic quantum system that is isospectral with a Dirac-hermitian Hamiltonian is presented.
Bender   +32 more
core   +1 more source

Generalized free cumulants for quantum chaotic systems

open access: yesJournal of High Energy Physics
The eigenstate thermalization hypothesis (ETH) is the leading conjecture for the emergence of statistical mechanics in generic isolated quantum systems and is formulated in terms of the matrix elements of operators.
Siddharth Jindal, Pavan Hosur
doaj   +1 more source

Exceptional points for parameter estimation in open quantum systems: analysis of the Bloch equations

open access: yesNew Journal of Physics, 2015
We suggest to employ the dissipative nature of open quantum systems for the purpose of parameter estimation: the dynamics of open quantum systems is typically described by a quantum dynamical semigroup generator ${\mathcal{L}}.$ The eigenvalues of ...
Morag Am-Shallem   +2 more
doaj   +1 more source

Quantization in classical mechanics and reality of Bohm's psi-field

open access: yes, 2009
Based on the Chetaev theorem on stable dynamical trajectories in the presence of dissipative forces, we obtain the generalized condition for stability of Hamilton systems in the form of the Schrodinger equation. It is shown that the energy of dissipative
Bacciagaluppi   +43 more
core   +1 more source

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