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16 papers · 1 filter
Random unistochastic matrices
K. Zyczkowski, W. Slomczynski, M. Kus +1
An ensemble of random unistochastic (orthostochastic) matrices is defined by taking squared moduli of elements of random unitary (orthogonal) matrices distributed according to the…
Quantum phases of dipolar bosons in optical lattices
K. Goral, L. Santos, M. Lewenstein
The ground state of dipolar bosons placed in an optical lattice is analyzed. We show that the modification of experimentally accessible parameters can lead to the realization and c…
QCD Phenomenology and Light-Front Wavefunctions
Stanley J. Brodsky
A natural calculus for describing the bound-state structure of relativistic composite systems in quantum field theory is the light-front Fock expansion which encodes the properties…
Motion of vortex lines in nonlinear wave mechanics
Iwo Bialynicki-Birula, Zofia Bialynicka-Birula
We extend our previous analysis of the motion of vortex lines [I. Bialynicki-Birula, Z. Bialynicka-Birula and C. Sliwa, Phys. Rev. A 61, 032110 (2000)] from linear to a nonlinear S…
On the Dirac Approach to Constrained Dissipative Dynamics
Sonnet Q H Nguyen, Lukasz A Turski
In this paper, we propose a novel algebraic and geometric description for the dissipative dynamics. Our formulation bears some similarity to the Poisson structure for non-dissipati…
Dynamics of a self gravitating light-like matter shell: a gauge-invariant Lagrangian and Hamiltonian description
Jacek Jezierski, Jerzy Kijowski, Ewa Czuchry
A complete Lagrangian and Hamiltonian description of the theory of self-gravitating light-like matter shells is given in terms of gauge-independent geometric quantities. For this p…