Strongly interacting polaritons in coupled arrays of cavities

By Michael J. Hartmann, Fernando G. S. L. Brandão, Martin Bodo Plenio. 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2006

780 citations recorded by the source corpus.

Observing quantum phenomena in strongly correlated many-particle systems is difficult because of the short length- and timescales involved. Exerting control over the state of individual elements within such a system is even more so, and represents a hurdle in the realization of quantum computing devices. Substantial progress has been achieved with arrays of Josephson junctions and cold atoms in optical lattices, where detailed control over collective properties is feasible, but addressing individual sites remains a challenge. Here we show that a system of polaritons held in an array of resonant optical cavities—which could be realized using photonic crystals or toroidal microresonators—can form a strongly interacting many-body system showing quantum phase transitions, where individual particles can be controlled and measured. The system also offers the possibility to generate attractive on-site potentials yielding highly entangled states and a phase with particles much more delocalized than in superfluids.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/2262983638ad9363548afea0f379b51e2c4b9d6a

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Cavity-based quantum networks with single atoms and optical photons (2014, background): “Experimental steps towards this goal will include studies on quantum phase transitions of light (Carusotto and Ciuti, 2013; Greentree et al., 2006; Hartmann et al., 2006; Törmä, 1998), on the percolation of entanglement (Acin et al., 2007), and on quantum random networks (Perseguers et al., 2010).”
Quantum simulation with interacting photons (2016, methodology): “This sequence has been analysed by Hartmann et al. [108] in terms of the fluctuations of the polariton number in each lattice site and by Angelakis et al. [4] for the excitation number fluctuations in a Jaynes-Cummings lattice.”
Keldysh field theory for driven open quantum systems (2015, background): “These models can even be brought into the correlation dominated regime [24, 132, 133, 141].”
Geometry of quantum phase transitions (2019, neutral): “Examples of suitable experimental platforms for the implementation and simulation of such an open many-body framework range from ultra-cold atoms in optical lattices [124, 364], to ion traps [365, 366], to cavity microarrays [367, 368, 369, 370, 371, 372, 143] and Rydberg atoms [373, 374].”
Colloquium: Strongly interacting photons in one-dimensional continuum (2016, background): “…phenomena in such simulators include a Luttinger liquid of photons (Angelakis et al., 2011), quantum phase transitions of light (Greentree et al., 2006; Hartmann et al., 2006), optical Josephson interferometry (Gerace et al., 2009), and the Tonks-Girardeau gas of photons (Chang et al., 2008).”
Quantum many‐body phenomena in coupled cavity arrays (2008, background): “A comparison between the full model (9) and the effective model (7) is done by considering the differences in the occupation numbers, δnl = [nl]cavities − [nl]BH, and number fluctuations, δFl = [Fl]cavities− [Fl]BH, at each time step [21].”
Strongly correlated photons on a chip (2011, background): “Finally, we emphasize that the blinking observed in our QD-cavity system is by no means unique and is observed by most groups working with such systems [2, 3].”
Quantum Simulation (2013, background): “Such an array could be realized, for example, with atoms in optical lattices (Greiner and Fölling, 2008), atoms in arrays of cavities (Angelakis et al., 2007; Brandao et al., 2007; Greentree et al., 2006; Hartmann et al., 2006), ions either in microtrap arrays (Chiaverini and Lybarger, 2008; Clark e”