Deterministic quantum teleportation between distant atomic objects

TY - JOUR

T1 - Deterministic quantum teleportation between distant atomic objects

AU - Krauter, Hanna Westergaard

AU - Salart Subils, Daniel

AU - Muschik, C.A.

AU - Petersen, Jonas Meyer

AU - Shen, Heng

AU - Fernholz, Thomas

AU - Polzik, Eugene Simon

PY - 2013/7/1

Y1 - 2013/7/1

N2 - Quantum teleportation is a key ingredient in quantum networks and one of the building blocks for quantum computation. Teleportation between distant material objects using light at the quantum-information carrier has been a particularly exciting goal. Here we propose and demonstrat. The deterministic continuous-variable teleportation between distant material objects. The objects are macroscopic atomic ensembles at room temperature. Entanglement required for teleportation is distributed by light propagating from one ensemble to the other. We demonstrate tha. The experimental fidelity of the quantum teleportation is higher than that achievable by any classical process. Furthermore, we demonstrat. The benefits of deterministic teleportation by teleporting a sequence of spin states evolving in time from one distant object onto another. The teleportation protocol is applicable to other important systems, such as mechanical oscillators coupled to light or cold spin ensembles coupled to microwaves.

AB - Quantum teleportation is a key ingredient in quantum networks and one of the building blocks for quantum computation. Teleportation between distant material objects using light at the quantum-information carrier has been a particularly exciting goal. Here we propose and demonstrat. The deterministic continuous-variable teleportation between distant material objects. The objects are macroscopic atomic ensembles at room temperature. Entanglement required for teleportation is distributed by light propagating from one ensemble to the other. We demonstrate tha. The experimental fidelity of the quantum teleportation is higher than that achievable by any classical process. Furthermore, we demonstrat. The benefits of deterministic teleportation by teleporting a sequence of spin states evolving in time from one distant object onto another. The teleportation protocol is applicable to other important systems, such as mechanical oscillators coupled to light or cold spin ensembles coupled to microwaves.

U2 - 10.1038/nphys2631

DO - 10.1038/nphys2631

M3 - Journal article

SN - 1745-2473

VL - 9

SP - 400

EP - 404

JO - Nature Physics

JF - Nature Physics

IS - 7

ER -