Stabilizing Entanglement via Symmetry-Selective Bath Engineering in Superconducting Qubits

M. E. Kimchi-Schwartz, L. Martin, E. Flurin, C. Aron, M. Kulkarni, H. E. Tureci, I. Siddiqi

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Abstract

Bath engineering, which utilizes coupling to lossy modes in a quantum system to generate nontrivial steady states, is a tantalizing alternative to gate- and measurement-based quantum science. Here, we demonstrate dissipative stabilization of entanglement between two superconducting transmon qubits in a symmetry-selective manner. We utilize the engineered symmetries of the dissipative environment to stabilize a target Bell state; we further demonstrate suppression of the Bell state of opposite symmetry due to parity selection rules. This implementation is resource efficient, achieves a steady-state fidelity F=0.70, and is scalable to multiple qubits.

Original languageEnglish (US)
Article number240503
JournalPhysical review letters
Volume116
Issue number24
DOIs
StatePublished - Jun 16 2016

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Kimchi-Schwartz, M. E., Martin, L., Flurin, E., Aron, C., Kulkarni, M., Tureci, H. E., & Siddiqi, I. (2016). Stabilizing Entanglement via Symmetry-Selective Bath Engineering in Superconducting Qubits. Physical review letters, 116(24), [240503]. https://doi.org/10.1103/PhysRevLett.116.240503