Dissipation-induced squeezing

Abstract

We present a method for phase and number squeezing in two-mode Bose systems using dissipation. The effectiveness of this method is demonstrated by considering cold Bose gases trapped in a double-well potential. The extension of our formalism to an optical lattice gives control of the phase boundaries of the steady-state phase diagram, and we discover a new phase characterized by a non-zero condensate fraction and thermal-like particle-number statistics. We also show how to perform amplitude squeezing in a single-mode system using dissipation.

6 pages, 6 figures; published in Phys. Rev. A

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• Preparation of three-dimensional entanglement for distant atoms in coupled cavities via atomic spontaneous emission and cavity decay
• Dissipative preparation of phase- and number-squeezed states with ultracold atoms
• Protecting and Enhancing Spin Squeezing via Continuous Dynamical Decoupling
• Dephasing-assisted parameter estimation in the presence of dynamical decoupling
• Floquet analysis of the modulated two-mode Bose-Hubbard model
• Engineered Open Systems and Quantum Simulations with Atoms and Ions
• Dissipative Preparation of Antiferromagnetic Order in the Fermi-Hubbard Model
• Tailored jump operators for purely dissipative quantum magnetism
• Dissipative versus Conditional Generation of Gaussian Entanglement and Spin Squeezing
• Local Non-Hermitian Hamiltonian Formalism for Dissipative Fermionic Systems and Loss-Induced Population Increase in Fermi Superfluids
• Driven-Dissipative Dynamics of Ultracold Atoms Trapped in an Array of Harmonic Potentials