Dispersive and dissipative coupling of photon Bose-Einstein condensates
Quantum Physics
Physics
QC1-999
FOS: Physical sciences
Astrophysics
01 natural sciences
7. Clean energy
QB460-466
Quantum Gases (cond-mat.quant-gas)
0103 physical sciences
Condensed Matter - Quantum Gases
Quantum Physics (quant-ph)
Physics - Optics
Optics (physics.optics)
DOI:
10.48550/arxiv.2110.01898
Publication Date:
2022-03-15
AUTHORS (3)
ABSTRACT
AbstractThe synchronization of coherent states of light has long been an important subject of basic research and technology. Recently, a new concept for analog computers has emerged where this synchronization process can be exploited to solve computationally hard problems - potentially faster and more energy-efficient than what can be achieved with conventional computer technology today. The unit cell of such systems consists of two coherent centers that are coupled to one another in a controlled manner. Here, we experimentally characterize and analyze the synchronization process of two photon Bose-Einstein condensates, which are coupled to one another, either dispersively or dissipatively. We show that both types of coupling are robust against a detuning of the condensate frequencies and show similar time constants in establishing mutual coherence. Significant differences between these couplings arise in the behaviour of the condensate populations under imbalanced optical pumping. The combination of these two types of coupling extends the class of physical models that can be investigated using analog simulations.
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