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Dissipative Microgravimetry Technique to Study Protein-Lipid Bilayer Interaction
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Photon Pair Condensation by Engineered Dissipation.

Ze-Pei Cian1,2, Guanyu Zhu2, Su-Kuan Chu1,2,3

  • 1Department of Physics, University of Maryland, College Park, Maryland 20742, USA.

Physical Review Letters
|September 7, 2019
PubMed
Summary
This summary is machine-generated.

Engineered dissipation stabilizes exotic quantum states. Researchers used photon pair operators to create a dark state, a photon pair condensate with unique phase-nematic order, observed via photon pair correlations.

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Area of Science:

  • Quantum optics
  • Condensed matter physics
  • Quantum information science

Background:

  • Dissipation typically causes decoherence in quantum systems.
  • Engineered dissipation offers a route to prepare and stabilize coherent quantum many-body states.

Purpose of the Study:

  • To demonstrate the stabilization of an exotic dark state using engineered dissipation.
  • To achieve a photon pair condensate with phase-nematic order.

Main Methods:

  • Utilizing dissipators with photon pair operators.
  • Engineering additional dissipators for parity sector selection via diffusive annihilation.
  • Proposing implementation in circuit-Quantum Electrodynamics (circuit-QED) architecture.

Main Results:

  • Stabilization of a dark state, a condensate of photon pairs.
  • Observation of phase-nematic order in the dark state.
  • Absence of single-photon superfluid order, replaced by long-range photon pair correlation.
  • Successful stabilization in a specific parity sector.

Conclusions:

  • Engineered dissipation can create novel quantum states beyond conventional orders.
  • Photon pair condensates with phase-nematic order are achievable.
  • Circuit-QED provides a viable platform for realizing these engineered quantum states.