Multiple-qubit Rydberg quantum logic gate via dressed-states scheme
- URL: http://arxiv.org/abs/2010.14704v2
- Date: Sun, 7 Mar 2021 03:15:29 GMT
- Title: Multiple-qubit Rydberg quantum logic gate via dressed-states scheme
- Authors: Yucheng He, Jing-Xin Liu, F.-Q. Guo, Lei-Lei Yan, Ronghui Luo, Erjun
Liang, Shi-Lei Su, M. Feng
- Abstract summary: We present a scheme to realize multiple-qubit quantum state transfer and quantum logic gate.
The robustness of the scheme to spontaneous emission can be achieved by reducing the population of Rydberg excited states.
The dressed-state method applied in the scheme makes the quantum state transfer more smoothly turned on or off.
- Score: 6.076186410173272
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present a scheme to realize multiple-qubit quantum state transfer and
quantum logic gate by combining the advantages of Vitanov-style pulses and
dressed-state-based shortcut to adiabaticity (STA) in Rydberg atoms. The
robustness of the scheme to spontaneous emission can be achieved by reducing
the population of Rydberg excited states through the STA technology. Meanwhile,
the control errors can be minimized through using the well-designed pulses.
Moreover, the dressed-state method applied in the scheme makes the quantum
state transfer more smoothly turned on or off with high fidelity and also
faster than traditional shortcut to adiabaticity methods. By using Rydberg
antiblockade (RAB) effect, the multiple-qubit Toffoli gate can be constructed
under a general selection conditions of the parameters.
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