2010/10/31 by Guozhu Sun, Xueda Wen, Bo Mao +6 · 1 citation
Computer Science · Physics and Astronomy · #Channel (broadcasting) #Charge qubit #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Condensed matter physics #Flux qubit #Interference (communication) #Interferometry #Microwave #Phase (matter) #Phase qubit #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Qubit #Superconducting quantum computing #Superconductivity #Telecommunications #Zener diode #cond-mat.mes-hall #cond-mat.supr-con #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physrevb.83.180507
6 pages, 3 figures To appear in Physical Review B(R)
arxiv created 2011/05/07 · openalex publication_date 2011/05/26 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the observation of Landau-Zener-St"uckelberg (LZS) interference of the dressed states arising from an artificial atom, a superconducting phase qubit, interacting with a microwave field. The dependence of LZS interference fringes on various external parameters and the initial state of the qubit agrees quantitatively very well with the theoretical prediction. Such LZS interferometry between the dressed states enables us to control the quantum states of a tetrapartite solid-state system with ease, demonstrating the feasibility of implementing efficient multipartite quantum logic gates with this unique approach.