12 papers
Quantum chaos in many-body systems of indistinguishable particles
Juan-Diego Urbina, Klaus Richter
In quantum systems with a classical limit, advanced semiclassical methods provide the crucial link between phase-space structures, reflecting the distinction between chaotic, mixed…
Scrambling at the genesis of chaos
Thomas R. Michel, Mathias Steinhuber, Juan Diego Urbina +1
The presence of chaos in classical Hamiltonian systems is witnessed by its maximal Lyapunov exponent, that quantifies the instability of motion through the exponential growth of in…
Coherent suppression and dephasing-induced reentrance of high harmonics in gapped Dirac materials
Wolfgang Hogger, Alexander Riedel, Debadrito Roy +4
High-harmonic generation in solids by intense laser pulses provides a fascinating platform for studying material properties and ultra-fast electron dynamics, where its coherent cha…
The relation between classical and quantum Lyapunov exponent and the bound on chaos in classically chaotic quantum systems
Fabian Haneder, Gerrit Caspari, Juan Diego Urbina +1
Out-of-Time-Ordered Commutators (OTOCs), representing a key diagnostic for scrambling as a facet of short-time quantum chaos, have attracted wide-ranging interest, from many-body p…
Topological gravity for arbitrary Dyson index
Torsten Weber, Marco Lents, Johannes Dieplinger +2
We use the well established duality of topological gravity to a double scaled matrix model with the Airy spectral curve to define what we refer to as topological gravity with arbit…
Beyond the ensemble paradigm in low dimensional quantum gravity: Schwarzian density, quantum chaos and wormhole contributions
Fabian Haneder, Juan Diego Urbina, Camilo Moreno +2
Based on periodic orbit theory we address the individual-system versus ensemble interpretation of quantum gravity from a quantum chaos perspective. To this end we show that the spe…