Probabilistic teleportation of a quantum dot spin qubit
- URL: http://arxiv.org/abs/2011.04881v1
- Date: Tue, 10 Nov 2020 04:08:19 GMT
- Title: Probabilistic teleportation of a quantum dot spin qubit
- Authors: Y. Kojima, T. Nakajima, A. Noiri, J. Yoneda, T. Otsuka, K. Takeda, S.
Li, S. D. Bartlett, A. Ludwig, A. D. Wieck, and S. Tarucha
- Abstract summary: We show a scheme for quantum teleportation based on direct Bell measurement for a single electron spin qubit in a triple quantum dot.
Results may be extended to quantum algorithms with a larger number of se miconductor spin qubit.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Electron spin s in semiconductor quantum dot s have been intensively studied
for implementing quantum computation and high fidelity single and two qubit
operation s have recently been achieved . Quantum teleportation is a three
qubit protocol exploiting quantum entanglement and it serv es as a n essential
primitive for more sophisticated quantum algorithm s Here, we demonstrate a
scheme for quantum teleportation based on direct Bell measurement for a single
electron spin qubit in a triple quantum dot utilizing the Pauli exclusion
principle to create and detect maximally entangled state s . T he single spin
polarization is teleported from the input qubit to the output qubit with a
fidelity of 0.9 1 We find this fidelity is primarily limited by singlet triplet
mixing which can be improved by optimizing the device parameters Our results
may be extended to quantum algorithms with a larger number of se miconductor
spin qubit s
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