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Quantum Many-Body Dynamics of Driven-Dissipative Rydberg Polaritons
Tim Pistorius1, Javad Kazemi1, Hendrik Weimer1
1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany.
Physical Review Letters
|January 15, 2021
Summary
We investigated Rydberg polariton transport in an optical lattice, finding strong photon antibunching despite decay losses. This demonstrates robust quantum correlations in driven-dissipative systems.
Area of Science:
- Quantum optics
- Condensed matter physics
- Atomic physics
Background:
- Rydberg polaritons offer a unique platform for studying strongly interacting quantum phenomena.
- Optical lattices provide a controllable environment for simulating condensed matter systems.
Purpose of the Study:
- To model the propagation of strongly interacting Rydberg polaritons in a 1D optical lattice.
- To analyze the driven-dissipative transport and quantum correlations of these polaritons.
Main Methods:
- Derivation of an effective single-band Hubbard model for dark-state polariton dynamics.
- Analysis of driven-dissipative transport with coherent drive and spontaneous emission.
- Application of a variational approach to solve the many-body problem.
Main Results:
- The derived Hubbard model effectively describes polariton dynamics.
- Strong photon antibunching was observed in the outgoing photons.
- This antibunching persists even in the presence of Rydberg state decay (losses).
Conclusions:
- The study demonstrates the feasibility of observing strong quantum correlations in driven-dissipative Rydberg polariton systems.
- The results highlight the robustness of quantum phenomena like antibunching against environmental losses.
- The developed theoretical model provides a valuable tool for future investigations of similar quantum systems.
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