270 citations
- The University of TokyoJP9 papers
- Indiana University BloomingtonUS5 papers
- Osaka Prefecture UniversityJP5 papers
- Guizhou UniversityCN4 papers
- Florida Institute of TechnologyUS3 papers
- Instituto de Astrofísica de CanariasES3 papers
- Michigan State UniversityUS3 papers
- Universidad de La LagunaES3 papers
- University of California, BerkeleyUS3 papers
- Astronomical Institute of the Slovak Academy of SciencesSK2 papers
- Ball State UniversityUS2 papers
- Cerro Tololo Inter-American ObservatoryCL2 papers
11 papers · 1 filter
Weak-coupling bound states in semi-infinite topological waveguide QED
Savannah Garmon, Gonzalo Ordonez, Kenichi Noba
A striking feature of cavity quantum electrodynamics is the existence of atom-photon bound states, which typically form when the coupling between the atom and its environment are s…
Characteristic influence of exceptional points in quantum dynamics
Savannah Garmon, Takafumi Sawada, Kenichi Noba +1
We review some recent work on the occurrence of coalescing eigenstates at exceptional points in non-Hermitian systems and their influence on physical quantities. We particularly fo…
Anomalous-order exceptional point and non-Markovian Purcell effect at threshold in one-dimensional continuum systems
Savannah Garmon, Gonzalo Ordonez, Naomichi Hatano
For a system consisting of a quantum emitter coupled near threshold (band edge) to a one-dimensional continuum with a van Hove singularity in the density of states, we demonstrate…
Time-Reversal Symmetry and Arrow of Time in Quantum Mechanics of Open Systems
Naomichi Hatano, Gonzalo Ordonez
It is one of the most important and long-standing issues of physics to derive the irreversibility out of a time-reversal symmetric equation of motion. The present paper considers t…
The arrow of time in open quantum systems and dynamical breaking of the resonance-antiresonance symmetry
Gonzalo Ordonez, Naomichi Hatano
Open quantum systems are often represented by non-Hermitian effective Hamiltonians that have complex eigenvalues associated with resonances. In previous work we showed that the evo…
Characteristic dynamics near two coalescing eigenvalues incorporating continuum threshold effects
Savannah Garmon, Gonzalo Ordonez
It has been reported in the literature that the survival probability near an exceptional point where two eigenstates coalesce should generally exhibit an evolution $P(t) \si…