Notes on teleportation in an expanding space
Notes on teleportation in an expanding space
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关于在扩展空间中传送的注意事项
DOI:
10.1016/j.physletb.2013.01.026
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发表时间:
2012-10
影响因子:
4.4
通讯作者:
Heng Fan
中科院分区:
文献类型:
--
作者:
Jun Feng;Wen-Li Yang;Yao-Zhong;Heng Fan
We investigate the quantum teleportation between a conformal detector Alice and an inertial detector Bob in de Sitter space in two schemes, (i) one uses free scalar modes and (ii) one utilizes cavity to store qubit. We show that the fidelity of the teleportation is degraded for Bob in both cases. While the fidelity-loss is due to the Gibbons–Hawking effect associated with his cosmological horizon in the scheme (i), the entanglement decreases in the scheme (ii) because the ability to entangle the cavities is reduced by the spacetime curvature. With a cutoff at Planck-scale, comparing with the standard Bunch–Davies choice, we also show that the possible Planckian physics cause extra modifications to the fidelity of the teleportation protocol in both schemes.
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影响因子:
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作者:
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影响因子:
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作者:
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作者:
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影响因子:
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作者:
ALLEN, B
通讯作者:
ALLEN, B