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- Max Planck SocietyDE799 papers
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10 papers · 2 filters
Entanglement in coupled kicked tops with chaotic dynamics
Tabea Herrmann, Maximilian F. I. Kieler, Felix Fritzsch +1
The entanglement of eigenstates in two coupled, classically chaotic kicked tops is studied in dependence of their interaction strength. The transition from the non-interacting and…
Non-Hermitian scattering on a tight-binding lattice
Phillip C. Burke, Jan Wiersig, Masudul Haque
We analyze the scattering dynamics and spectrum of a quantum particle on a tight-binding lattice subject to a non-Hermitian (purely imaginary) local potential. The reflection, tran…
Entanglement production by interaction quenches of quantum chaotic subsystems
Jethin J. Pulikkottil, Arul Lakshminarayan, Shashi C. L. Srivastava +2
The entanglement production in bipartite quantum systems is studied for initially unentangled product eigenstates of the subsystems, which are assumed to be quantum chaotic. Based…
Entanglement measures of bipartite quantum gates and their thermalization under arbitrary interaction strength
Bhargavi Jonnadula, Prabha Mandayam, Karol Życzkowski +1
Entanglement properties of bipartite unitary operators are studied via their local invariants, namely the entangling power and a complementary quantity, the gate typicality $…
Apoptosis of moving, non-orthogonal basis functions in many-particle quantum dynamics
Michael Werther, Frank Grossmann
Due to the exponential increase of the numerical effort with the number of degrees of freedom, moving basis functions have a long history in quantum dynamics. In addition, spawning…
Exceptional points and the topology of quantum many-body spectra
David J. Luitz, Francesco Piazza
We show that in a generic, ergodic quantum many-body system the interactions induce a non-trivial topology for an arbitrarily small non-hermitean component of the Hamiltonian. This…