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9 papers · 2 filters
A Remark on the Optimal Cloning of An N-Level Quantum System
Sergio Albeverio, Shao-Ming Fei
We study quantum cloning machines (QCM) that act on an unknown N-level quantum state and make M copies. We give a formula for the maximum of the fidelity of cloning and exhibit the…
Motion of a particle and the vacuum
Volodymyr Krasnoholovets, Dmytro Ivanovsky
We propose the deterministic dynamics of a free particle in a physical vacuum, which is considered as a discrete (quantum) medium. The motion of the particle is studied taking into…
Motion of vortex lines in quantum mechanics
Iwo Bialynicki-Birula, Zofia Bialynicka-Birula, Cezary Sliwa
Exact analytic solutions of the time dependent Schrodinger equation are produced that exhibit a variety of vortex structures. The qualitative analysis of the motion of vortex lines…
Statistical Properties and Algebraic Characteristics of Quantum Superpositions of Negative Binomial States
Xiao-Guang Wang, Hong-Chen Fu
We introduce new kinds of states of quantized radiation fields, which are the superpositions of negative binomial states. They exhibit remarkable non-classical properties and reduc…
On the theory of the anomalous photoelectric effect stemming from a substructure of matter waves
Volodymyr Krasnoholovets
The two opposite concepts - multiphoton and effective photon - readily describing the photoelectric effect under strong irradiation in the case that the energy of the incident ligh…
Excited Binomial States and Excited Negative Binomial States of the Radiation Field and Some of their Statistical Properties
Xiao-Guang Wang, Hong-Chen Fu
We introduce excited binomial states and excited negative binomial states of the radiation field by repeated application of the photon creation operator on binomial states and nega…