Spontaneous generation of phononic entanglement in quantum dark-soliton qubits
arXiv:1801.08169 · doi:10.1103/PhysRevA.99.042326
Abstract
We show that entanglement between two solitary qubits in quasi-one-dimensional Bose-Einstein condensates can be spontaneously generated due to quantum fluctuations. Recently we have shown that dark solitons are an appealing platform for qubits thanks to their appreciable long lifetime. We investigate the spontaneous generation of entanglement between dark-soliton qubits in the dissipative process of spontaneous emission. By driving the qubits with the help of oscillating magnetic field gradients, we observe the formation of long distance steady-state concurrence. Our results suggest that dark-soliton qubits are good candidates for quantum information protocols based purely on matter-wave phononics.
10 Pages, 8 Figures
References in corpus (9)
- Coupling Superconducting Qubits via a Cavity Bus
- Entanglement of two qubits mediated by one-dimensional plasmonic waveguides
- Observation of Entangled States of a Fully Controlled 20-Qubit System
- Emergence of a Turbulent Cascade in a Quantum Gas
- Dark soliton dynamics in Bose-Einstein condensates at finite temperature
- Entanglement sudden death and revival in quantum dark-soliton qubits
- Phonon-polaritons in Bose-Einstein condensates induced by Casimir-Polder interaction with graphene
- Cooling and entanglement of multimode graphene resonators via vacuum fluctuations
- Sympathetic laser-cooling of graphene with Casimir-Polder forces