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8 papers · 2 filters
The 1/N-expansion, quantum-classical correspondence and nonclassical states generation in dissipative higher-order anharmonic oscillators
Kirill N. Alekseev, Jan Perina
We develop a method for the determination of thecdynamics of dissipative quantum systems in the limit of large number of quanta N, based on the 1/N-expansion of Heidmann et al. [ O…
Copying of entangled states and the degradation of correlations
Pawel Masiak, Peter L. Knight
We investigate the degree to which entanglement survives when a correlated pair of two-state systems are copied using either local or non-local processes. We show how the copying p…
Squeezed Light Generation in Nonlinear System with Chaotic Dynamics
Kirill N. Alekseev
The squeezing in a nonlinear system with chaotic dynamics is considered. The model describing interaction of collection of two-level atoms with a single-mode of self-consistent fie…
Interfering resonances in a quantum billiard
E. Persson, K. Pichugin, I. Rotter +1
We present a method for numerically obtaining the positions, widths and wavefunctions of resonance states in a two dimensional billiard connected to a waveguide. For a rectangular…
Another Comment on ``Quantum Entanglement and Nonexistence of Superluminal Signals''
Vladimir S. Mashkevich
We argue that the claim given in quant-ph/9801014 remains untenable in the revised version. The fallacy in the proof is a misinterpretation of the no-cloning and teleportation theo…
On Quantum Nonlocality: Using Prediction of a Distant Measurement Outcome
Vladimir S. Mashkevich
We assume that an event caused by a correlation between outcomes of two causally separated measurements is, by definition, a manifestation of quantum nonlocality, or superluminal i…