266 citations · 1.5k across the 48 of their papers we have counts for
48 papers
The use of Peres lattices in periodically driven systems
Lukáš Honsa, Jan Střeleček, Jakub Novotný +1
We demonstrate the strength of the method of Peres lattices in periodically driven quantum systems. The method, which has previously been used mostly in stationary systems, enables…
Quantum geometry of connected state manifolds: When diabolic points act as bridges between eigenstate manifolds
Jan Střeleček, Jakub Novotný, Pavel Cejnar
Parametric Hamiltonians often exhibit point-like spectral degeneracies (diabolic points, or conical intersections), which can lead to singularities in the Provost-Vallee metric of…
Tracing complex zeros of the quantum survival amplitude: How the energy distribution controls dynamical phase transitions
Jakub Novotný, Jan Střeleček, Pavel Stránský +1
Motivated by the advance of dynamical quantum phase transitions (DQPTs), we analyze the zeros of the complex-time survival (Loschmidt) amplitude in finite quantum systems and devel…
Chaos, thermalization and breakdown of quantum-classical correspondence in a collective many-body system
Ángel L. Corps, Sebastián Gómez, Pavel Stránský +2
We investigate thermalization and the quantum-classical correspondence in the collective Bose-Hubbard model, focusing on the four-site case. Our analysis of the classical phase-spa…
Creating multicomponent Schrödinger cat states in a coupled qubit-oscillator system
Pavel Stránský, Pavel Cejnar
We present a method for preparing various exotic modifications of Schr{ö}dinger cat states by coupling a semiclassical oscillator to a system of qubits. Varying the number of qubit…
Quantum geometry in many-body systems with precursors of criticality
Jan Střeleček, Pavel Cejnar
We analyze the geometry of the ground-state manifold in parameter-dependent many-body systems with quantum phase transitions (QPTs) and describe finite-size precursors of the singu…