Single-photon transistor based on superconducting systems

TY - JOUR

T1 - Single-photon transistor based on superconducting systems

AU - Manzoni, Marco. T.

AU - Reiter, Florentin

AU - Sørensen, Anders Søndberg

AU - Taylor, Jacob M.

PY - 2014/5/12

Y1 - 2014/5/12

N2 - We present a scheme for a single-photon transistor which can be implemented with only minor modifications of existing superconducting circuits. The proposal employs a three-level anharmonic ladder atom, e.g., a transmon qubit, placed in a cavity to mimic a -type atom with two long-lived states. This configuration may enable a wide range of effects originally studied in quantum optical systems to be realized in superconducting systems, and in particular allow for single-photon transistors. We study analytically and numerically the efficiency and the gain of the proposed transistor as a function of the experimental parameters, in particular of the level anharmonicity and of the various decay and decoherence rates. State-of-the-art values for these parameters indicate that error probabilities of ∼1% and gains of the order of hundreds can be obtained.

AB - We present a scheme for a single-photon transistor which can be implemented with only minor modifications of existing superconducting circuits. The proposal employs a three-level anharmonic ladder atom, e.g., a transmon qubit, placed in a cavity to mimic a -type atom with two long-lived states. This configuration may enable a wide range of effects originally studied in quantum optical systems to be realized in superconducting systems, and in particular allow for single-photon transistors. We study analytically and numerically the efficiency and the gain of the proposed transistor as a function of the experimental parameters, in particular of the level anharmonicity and of the various decay and decoherence rates. State-of-the-art values for these parameters indicate that error probabilities of ∼1% and gains of the order of hundreds can be obtained.

U2 - 10.1103/PhysRevB.89.180502

DO - 10.1103/PhysRevB.89.180502

M3 - Journal article

SN - 2469-9950

VL - 89

JO - Physical Review B

JF - Physical Review B

IS - 18

M1 - 180502

ER -