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5 papers · 2 filters
Variational approach to the time-dependent Schrödinger-Newton equations
Giovanni Manfredi, Paul-Antoine Hervieux, Fernando Haas
Using a variational approach based on a Lagrangian formulation and Gaussian trial functions, we derive a simple dynamical system that captures the main features of the time-depende…
Superdiffusivity of quantum walks: A Feynman sum-over-paths description
F. M. Andrade, M. G. E. da Luz
Quantum walks constitute important tools in different applications, especially in quantum algorithms. To a great extent their usefulness is due to unusual diffusive features, allow…
Bayes' rule, generalized discord, and nonextensive thermodynamics
A. C. S. Costa, R. M. Angelo
Generalized measures of quantum correlations are derived by taking Bayes' rule as the only fundamental principle. The resulting quantifiers satisfy several desirable conditions for…
Kinematics and dynamics in noninertial quantum frames of reference
R. M. Angelo, A. D. Ribeiro
From the principle that there is no absolute description of a physical state, we advance the approach according to which one should be able to describe the physics from the perspec…
Entanglement dynamics via semiclassical propagators in systems of two spins
A. D. Ribeiro, R. M. Angelo
We analyze the dynamical generation of entanglement in systems of two interacting spins initially prepared in a product of spin coherent states. For arbitrary time-independent Hami…