Thermally induced entanglement of atomic oscillators
arXiv:2107.01939 · doi:10.1364/OE.449811
Abstract
Laser cooled ions trapped in a linear Paul trap are long-standing ideal candidates for realizing quantum simulation, especially of many-body systems. The properties that contribute to this also provide the opportunity to demonstrate unexpected quantum phenomena in few-body systems. A pair of ions interacting in such traps exchange vibrational quanta through the Coulomb interaction. This linear interaction can be anharmonically modulated by an elementary coupling to the internal two-level structure of one of the ions. Driven by thermal energy in the passively coupled oscillators, which are themselves coupled to the internal ground states of the ions, the nonlinear interaction autonomously and unconditionally generates entanglement between the mechanical modes of the ions. We examine this counter-intuitive thermally induced entanglement for several experimentally feasible model systems, and propose parameter regimes where state of the art trapped ion systems can produce such phenomena. In addition, we demonstrate a multiqubit enhancement of such thermally induced entanglement.
11+9 pages, 4+11 figures
References in corpus (16)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Strongly Interacting Polaritons in Coupled Arrays of Cavities
- Quantum phase transitions of light
- Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
- Quantum harmonic oscillator state synthesis by reservoir engineering
- Mott-insulating and glassy phases of polaritons in 1D arrays of coupled cavities
- Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion
- Entangling oscillators through environment noise
- Continuous monitoring of a trapped, superconducting spin
- Quantum phase transitions in photonic cavities with two-level systems
- Phonon heat transport in cavity-mediated optomechanical nanoresonators
- Hybrid quantum computation gate with trapped ion system
- Quantum phases of interacting phonons in ion traps
- Genuine multipartite entanglement of symmmetric Gaussian states: Strong monogamy, unitary localization, scaling behavior, and molecular sharing structure
- Deterministic nonclassicality for quantum mechanical oscillators in thermal states
- Entanglement enhancement and postselection for two atoms interacting with thermal light