Quantum memory with millisecond coherence in circuit QED

Demonstration of a transmon-addressable 3D microwave cavity quantum memory with millisecond-scale single-photon relaxation and coherence.

Key Results

• Single-photon lifetime $T_1=1.22\pm 0.06$ ms
• Fock-superposition coherence $T_2=0.72\pm 0.03$ ms
• MHz-rate control, encoding, and readout through a coupled transmon

Links

• Journal: Physical Review B

Zoo Links

• bosonic-qubit