23 citations · 40 across the 9 of their papers we have counts for
10 papers
Measurement protocol for non-adiabatic geometric phases of Floquet states
Carlos Martín-Fernández, Gloria Platero, Sigmund Kohler
Periodically time-dependent quantum systems have Floquet solutions. They consist of a phase factor and a Floquet mode which shares the periodicity of the driving. Consequently, any…
Floquet physics from quantized light-matter interaction: geometric phases, gauge consistency, and entanglement
Beatriz Pérez-González, Sigmund Kohler, Mónica Benito
Floquet engineering and cavity quantum electrodynamics represent two complementary descriptions of light-matter interaction, yet their precise connection beyond the small-coupling…
Topological charges and parity selection at Floquet quasienergy degeneracies
Sigmund Kohler, David Guéry-Odelin
The quasienergy spectrum of a strongly driven two-level system as a function of the driving parameters exhibits conical intersections, which are enabled by hidden time-nonlocal sym…
Hidden time-nonlocal Floquet symmetries
Sigmund Kohler, Jesús Casado-Pascual
We investigate the Floquet spectrum of a detuned, driven two-level system and show that it exhibits exact quasienergy crossings when the detuning is an integer multiple of the ener…
The open driven two-level system at conical intersections of quasienergies
Sigmund Kohler
We study the stationary state of an ac-driven two-level system under particle exchange with a fermionic environment. A particular question addressed is whether there exist limits i…
Quantum Dissipation at Conical Intersections of Quasienergies
Sigmund Kohler
We investigate the properties of Floquet states in the vicinity of a conical intersection of quasienergies and work out the consequences of the underlying spatio-temporal symmetrie…