Reaching 10 ms single photon lifetimes for superconducting aluminum cavities

By M. Reagor, H. Paik, G. Catelani, L. Sun, C. Axline, E. Holland, I. Pop, N. Masluk, T. Brecht, Luigi Frunzio and 3 more. 2013

230 citations recorded by the source corpus.

Three-dimensional microwave cavities have recently been combined with superconducting qubits in the circuit quantum electrodynamics architecture. These cavities should have less sensitivity to dielectric and conductor losses at surfaces and interfaces, which currently limit the performance of planar resonators. We expect that significantly (>103) higher quality factors and longer lifetimes should be achievable for 3D structures. Motivated by this principle, we have reached internal quality factors greater than 0.5 × 109 and intrinsic lifetimes of 0.01 s for multiple aluminum superconducting cavity resonators at single photon energies and millikelvin temperatures. These improvements could enable long lived quantum memories with submicrosecond access times when strongly coupled to superconducting qubits.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/5e984864f4173f2e7864891248cd44c332619339

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Microwave photonics with superconducting quantum circuits (2017, background): “The internal quality factor of a 3D resonator can exceed 10(8) [153], which is two orders of magnitude greater than what has been achieved in its planar counterpart [121].”
Coherent oscillations inside a quantum manifold stabilized by dissipation (2017, methodology): “the lifetime of our storage cavity to the Purcell effect (usually κ−1 1 is of order 1 ms [23]).”