US 12,333,381 B2
Quantum state transfer
Andrew Lucas, Boulder, CO (US); Minh Tran, College Park, MD (US); Adam E. Ehrenberg, University Park, MD (US); Andrew Y. Guo, College Park, MD (US); Abhinav Deshpande, College Park, MD (US); Alexey Vyacheslavovich Gorshkov, Rockville, MD (US); Zhexuan Gong, Arvada, CO (US); Chi-Fang Chen, Pasadena, CA (US); and Yifan Hong, Boulder, CO (US)
Assigned to The Regents of the University of Colorado, a body corporate; Government Of The United States Of America, As Represented By The Secretary Of Commerce; California Institute of Technology; University of Maryland, College Park; and Colorado School of Mines
Filed by The Regents of the University of Colorado, a body corporate, Denver, CO (US); GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, Gaithersburg, MD (US); California Institute of Technology, Pasadena, CA (US); University of Maryland, College Park, College Park, MD (US); and Colorado School of Mines, Golden, CO (US)
Filed on Jan. 12, 2022, as Appl. No. 17/574,301.
Claims priority of provisional application 63/136,385, filed on Jan. 12, 2021.
Prior Publication US 2022/0222563 A1, Jul. 14, 2022
Int. Cl. G06N 10/20 (2022.01)
CPC G06N 10/20 (2022.01) 20 Claims
OG exemplary drawing
 
1. A method for quantum state transfer, comprising:
iteratively spreading an initial quantum state from an initial qudit, of a plurality of qudits, over a sequence of expanding domains;
wherein each iteration of said iteratively spreading includes applying a quantum circuit to the plurality of qudits belonging to a respective expanding domain of the sequence of expanding domains, the quantum circuit transforming the qudits of the respective expanding domain into an intermediate quantum state comprising a superposition of terms, at least one of the terms approximating a W state formed with the qudits of the respective expanding domain.