Showing 2013 · quant-phShow all

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quant-ph2013★ 17 cited

Stochastic Master Equation Analysis of Optimized Three-Qubit Nondemolition Parity Measurement

L. Tornberg, Sh. Barzanjeh, David P. DiVincenzo

We analyze a direct parity measurement of the state of three superconducting qubits in circuit quantum electrodynamics. The parity is inferred from a homodyne measurement of the re…

quant-ph2013★ 25 cited

Towards universal quantum computation through relativistic motion

David Edward Bruschi, Carlos Sabín, Pieter Kok +3

We show how to use relativistic motion and local phase shifts to generate continuous variable Gaussian cluster states within cavity modes. Our results can be demonstrated experimen…

quant-ph2013★ 49 cited

Investigation of nonlinear effects in Josephson parametric oscillators used in circuit QED

Philip Krantz, Yarema Reshitnyk, Waltraut Wustmann +6

We experimentally study the behavior of a parametrically pumped nonlinear oscillator, which is based on a superconducting λ/4 resonator, and is terminated by a flux-tunable SQUID.…

quant-ph2013★ 104 cited

Quantum nondemolition detection of a propagating microwave photon

Sankar R. Sathyamoorthy, L. Tornberg, Anton F. Kockum +5

The ability to nondestructively detect the presence of a single, traveling photon has been a long-standing goal in optics, with applications in quantum information and measurement.…

quant-ph2013★ 8 cited

Nonlinear-dissipation-induced Entanglement of Coupled Nonlinear Oscillators

Aurora Voje, Andreas Isacsson, Alexander Croy

The quantum dynamics of two weakly coupled nonlinear oscillators is analytically and numerically investigated in the context of nonlinear dissipation. The latter facilitates the cr…

quant-ph2013★ 79 cited

Steady state entanglement of two superconducting qubits engineered by dissipation

Florentin Reiter, L. Tornberg, Göran Johansson +1

We present a scheme for the dissipative preparation of an entangled steady state of two superconducting qubits in a circuit QED setup. Combining resonator photon loss, a dissipativ…

quant-ph2013★ 52 cited

Proposal for a coherent quantum memory for propagating microwave photons

M. Afzelius, N. Sangouard, G. Johansson +2

We describe a multi-mode quantum memory for propagating microwave photons that combines a solid-state spin ensemble resonantly coupled to a frequency tunable single-mode microwave…