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Thomas Pohl

Antiferromagnetic long-range order in dissipative Rydberg lattices

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  • Michael Hoening, Fachbereich Physik und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Germany
  • Wildan Abdussalam, Max Planck Inst Phys Komplexer Syst, Max Planck Society
  • ,
  • Michael Fleischhauer, Fachbereich Physik und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Germany
  • Thomas Pohl

We study the dynamics of dissipative spin lattices with power-law interactions, realized via few-level atoms driven by coherent laser-coupling and decoherence processes. Using Monte Carlo simulations, we determine the phase diagram in the steady state and analyze its generation dynamics. As opposed to mean-field predictions and nearest-neighbor models, there is no transition to long-range-ordered phases for realistic interactions and resonant driving. However, for finite laser detunings, we demonstrate the emergence of crystalline order. Although the static and dynamical critical exponents of the revealed dissipative phase transition fall into the two-dimensional Ising universality class, the found steady states differ considerably from those of an equilibrium Ising magnet. Two complementary schemes for an experimental implementation with cold Rydberg atoms are discussed.

Original languageEnglish
Article number021603
JournalPhysical Review A
Volume90
Issue2
Number of pages5
ISSN2469-9926
DOIs
Publication statusPublished - 15 Aug 2014

    Research areas

  • DYNAMIC CRITICAL PHENOMENA, QUANTUM SIMULATOR, MOTT INSULATOR, ISING-MODEL, ATOMS, GAS, PROPAGATION, SYSTEMS

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