47 citations · 84 across the 11 of their papers we have counts for
12 papers
Fluctuations of a Photon Bose-Einstein Condensate Coupled to a Reservoir: Describing Coherence Properties in a Free-Energy Model
Martin Weitz, Andreas Redmann, Riccardo Panico +4
Photons are mutually nearly noninteracting particles, so thermalized photon ensembles are commonly obtained not from direct particle-particle-interactions but rather from contact w…
Universal critical behavior in ideal Bose-Einstein condensation
Arturo Camacho-Guardian, Leon Kleebank, Frank Vewinger +4
Ideal Bose-Einstein condensation (BEC) remains a paradigmatic example of a continuous phase transition and a cornerstone for understanding quantum degenerate bosonic matter. We dem…
Observation of critical scaling in the Bose gas universality class
Leon Kleebank, Frank Vewinger, Arturo Camacho-Guardian +4
Critical exponents characterize the divergent scaling of thermodynamic quantities near phase transitions and allow for the classification of physical systems into universality clas…
One- and two-photon spectroscopy with a test of the Kennard-Stepanov relation in high-pressure two-species xenon-noble gas mixtures
Eric Boltersdorf, Thilo vom Hövel, Jeremy Andrew Morín Nenoff +2
Between the absorption and the emission spectral lineshapes of dense atomic and molecular media, such as dye solutions and alkali-noble buffer gas mixtures at high pressure, in man…
Time-periodic driving of a bath-coupled open quantum gas of light
Andris Erglis, Alexander Sazhin, Frank Vewinger +3
We study the frequency-resolved density response of a photon Bose-Einstein condensate coupled to a bath of dye molecules by time-periodic driving. By monitoring the photon number d…
Thermodynamics and State Preparation in a Two-State System of Light
Christian Kurtscheid, Andreas Redmann, Frank Vewinger +2
The coupling of two-level quantum systems to the thermal environment is a fundamental problem, with applications ranging from qubit state preparation to spin models. However, for t…
Observation of Nonlinear Response and Onsager Regression in a Photon Bose-Einstein Condensate
Alexander Sazhin, Vladimir N. Gladilin, Andris Erglis +5
The quantum regression theorem states that the correlations of a system at two different times are governed by the same equations of motion as the temporal response of the average…
Bose-Einstein Condensation of Photons in a Four-Site Quantum Ring
Andreas Redmann, Christian Kurtscheid, Niels Wolf +3
Thermalization of radiation by contact to matter is a well-known concept, but the application of thermodynamic methods to complex quantum states of light remains a challenge. Here…
Dimensional Crossover in a Quantum Gas of Light
Kirankumar Karkihalli Umesh, Julian Schulz, Julian Schmitt +3
The dimensionality of a system profoundly influences its physical behaviour, leading to the emergence of different states of matter in many-body quantum systems. In lower dimension…
Bose-Einstein condensation for trapped atomic polaritons in a biconical waveguide cavity
I. Yu. Chestnov, A. P. Alodjants, S. M. Arakelian +3
We study the problem of high temperature Bose-Einstein condensation (BEC) of atom-light polaritons in a waveguide cavity appearing due to interaction of two-level atoms with (non-r…
On the effective Dirac dynamics of ultracold atoms in bichromatic optical lattices
D. Witthaut, T. Salger, S. Kling +2
We study the dynamics of ultracold atoms in tailored bichromatic optical lattices. By tuning the lattice parameters, one can readily engineer the band structure and realize a Dirac…
Thermalization of coupled atom-light states in the presence of optical collisions
I. Yu. Chestnov, A. P. Alodjants, S. M. Arakelian +4
The interaction of a two-level atomic ensemble with a quantized single mode electromagnetic field in the presence of optical collisions (OC) is investigated both theoretically and…