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- Max Planck SocietyDE799 papers
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- Max Planck Institute for Chemical Physics of SolidsDE185 papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR71 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT71 papers
7 papers · 2 filters
Phase time for a tunneling particle
Swarnali Bandopadhyay, A. M. Jayannavar
We study the nature of tunneling phase time for various quantum mechanical structures such as networks and rings having potential barriers in their arms. We find the generic presen…
Random Lindblad equations from complex environments
Adrian A. Budini
In this paper we demonstrate that Lindblad equations characterized by a random rate variable arise after tracing out a complex structured reservoir. Our results follows from a gene…
On single-copy entanglement
Ingo Peschel, Jize Zhao
The largest eigenvalue of the reduced density matrix for quantum chains is shown to have a simple physical interpretation and power-law behaviour in critical systems. This is verif…
Entanglement dynamics under decoherence: from qubits to qudits
André R. R. Carvalho, Florian Mintert, Stefan Palzer +1
We investigate the time evolution of entanglement for bipartite systems of arbitrary dimensions under the influence of decoherence. For qubits, we determine the precise entanglemen…
Semiclassical propagator of the Wigner function
Thomas Dittrich, Luis Sandoval, Carlos Viviescas
Propagation of the Wigner function is studied on two levels of semiclassical propagation, one based on the van-Vleck propagator, the other on phase-space path integration. Leading…
Measures and dynamics of entangled states
Florian Mintert, Andre R. R. Carvalho, Marek Kus +1
We develop an original approach for the quantitative characterisation of the entanglement properties of, possibly mixed, bi- and multipartite quantum states of arbitrary finite dim…