dorsal/arxiv
View SchemaSwapping and entangling qubits of single photons and atoms
| Authors | T. W. Chen, C. K. Law, P. T. Leung |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311156 |
| URL | https://arxiv.org/abs/quant-ph/0311156 |
Abstract
A scheme is proposed here to achieve swapping and entangling of photonic and atomic qubits with high fidelity. The mechanism is based on the scattering of a single photon from a $\Lambda$-type three-level atom. The evolution of the coupled system is analyzed by projecting the quantum state onto a `bright' and a `dark' state. Quantum interference of these two states, which is determined by a frequency-dependent phase angle, can be exploited to perform various two-qubit transformations. It is remarkable that the probability of success of such transformations can approach unity in the strong coupling cavity QED regime.
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"abstract": "A scheme is proposed here to achieve swapping and entangling of photonic and\natomic qubits with high fidelity. The mechanism is based on the scattering of a\nsingle photon from a $\\Lambda$-type three-level atom. The evolution of the\ncoupled system is analyzed by projecting the quantum state onto a `bright\u0027 and\na `dark\u0027 state. Quantum interference of these two states, which is determined\nby a frequency-dependent phase angle, can be exploited to perform various\ntwo-qubit transformations. It is remarkable that the probability of success of\nsuch transformations can approach unity in the strong coupling cavity QED\nregime.",
"arxiv_id": "quant-ph/0311156",
"authors": [
"T. W. Chen",
"C. K. Law",
"P. T. Leung"
],
"categories": [
"quant-ph"
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"title": "Swapping and entangling qubits of single photons and atoms",
"url": "https://arxiv.org/abs/quant-ph/0311156"
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