Sign- and Magnitude-Tunable Coupler for Superconducting Flux Qubits

Bibliographic Details
Parent link:Physical Review Letters: Scientific Journal.— , 1958-
Vol. 98, iss. 17.— 2007.— [177001, 4 p.]
Other Authors: Harris R., Berkley A. J., Johnson M. W., Bunyk P., Govorkov S., Thom M. C., Uchaykin S. V. Sergey Victorovich, Wilson A. B., Chung J., Holtham E., Biamonte J. D., Smirnov A. Yu., Amin M. H. S., Brink A. M. van den
Summary:Title screen
We experimentally confirm the functionality of a coupling element for flux-based superconducting qubits, with a coupling strength J whose sign and magnitude can be tuned in situ. To measure the effectiveJ, the ground state of a coupled two-qubit system has been mapped as a function of the local magnetic fields applied to each qubit. The state of the system is determined by directly reading out the individualqubits while tunneling is suppressed. These measurements demonstrate that J can be tuned from antiferromagnetic through zero to ferromagnetic
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Language:English
Published: 2007
Subjects:
Online Access:http://dx.doi.org/10.1103/PhysRevLett.98.177001
http://arxiv.org/abs/cond-mat/0608253
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637153