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20 papers · 2 filters
Quantum mechanics of bending of a nonrelativistic charged particle beam by a dipole magnet
Sameen Ahmed Khan, Ramaswamy Jagannathan
Quantum mechanics of bending of a nonrelativistic monoenergetic charged particle beam by a dipole magnet is studied in the paraxial approximation. The transfer map for the position…
Probing thermalization through spectral analysis with matrix product operators
Yilun Yang, Sofyan Iblisdir, J. Ignacio Cirac +1
We combine matrix product operator techniques with Chebyshev polynomial expansions and present a method that is able to explore spectral properties of quantum many-body Hamiltonian…
Nonlinear Dynamics from Linear Quantum Evolutions
Florio M. Ciaglia, Fabio Di Cosmo, Armando Figueroa +5
Linear dynamics restricted to invariant submanifolds generally gives rise to nonlinear dynamics. Submanifolds in the quantum framework may emerge for several reasons: one could be…
On the notion of composite system
Florio M. Ciaglia, Alberto Ibort, Giuseppe Marmo
The notion of composite system made up of distinguishable parties is investigated in the context of arbitrary convex spaces.
On the modified logarithmic Sobolev inequality for the heat-bath dynamics for 1D systems
Ivan Bardet, Angela Capel, Angelo Lucia +2
The mixing time of Markovian dissipative evolutions of open quantum many-body systems can be bounded using optimal constants of certain quantum functional inequalities, such as the…
On optimal cloning and incompatibility
Arindam Mitra, Prabha Mandayam
We investigate the role of symmetric quantum cloning machines (QCMs) in quantifying the mutual incompatibility of quantum observables. Specifically, we identify a cloning-based inc…