US 7,321,884 B2
Method and structure to isolate a qubit from the environment
Guido Burkard, Irvington, N.Y. (US); David P. DiVincenzo, Tarrytown, N.Y. (US); George A. Keefe, Cortlandt Manor, N.Y. (US); Roger H. Koch, Amawalk, N.Y. (US); and James R. Rozer, Peekskill, N.Y. (US)
Assigned to International Business Machines Corporation, Armonk, N.Y. (US)
Filed on Feb. 23, 2004, as Appl. No. 10/782,811.
Prior Publication US 2005/0184284 A1, Aug. 25, 2005
Int. Cl. G06F 17/00 (2006.01); G06N 5/02 (2006.01)
U.S. Cl. 706—46  [706/45; 706/14] 18 Claims
OG exemplary drawing
 
1. A method of coupling a qubit, said method comprising:
providing a transmission line for at least one of controlling said qubit and reading out a state of said qubit; and
locating said qubit near a transmission line approximately at a location corresponding to a node at a predetermined frequency, said predetermined frequency comprising a basic operating frequency F01 of said qubit as a frequency difference between a lowest energy state of said qubit and a second lowest energy state of said qubit.