US Patent No: 6,897,468

Number of patents in Portfolio can not be more than 2000

Resonant controlled qubit system

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ALSO PUBLISHED AS: 20040173792
ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

Methods for coupling a superconducting qubit to a resonant control circuit. An interaction term between the qubit and the circuit initially has a diagonal component. A recoupling operation is applied to the qubit. The circuit is tuned so that a frequency of the qubit and circuit match. A second recoupling operation transforms the term to have only off-diagonal components. A method for entangling a state of two qubits coupled to a bus with a control circuit. An interaction term between at least one of the qubits and the circuit has a diagonal component. A recoupling operation is applied to at least one of the qubits such that the term has only off-diagonal components. The frequency of the circuit is tuned to the frequency of the first qubit, and then tuned to the frequency of the second qubit. The recoupling operation is reapplied to at least one of the qubits.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
D-WAVE SYSTEMS INC.BURNABY, BC97

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blais, Alexandre Sherbrooke, CA 18 162
Hilton, Jeremy P Vancouver, CA 45 368
Zagoskin, Alexandre M Vancouver, CA 14 215

Cited Art

Patent Info (Count) # Cites Year
 
D-WAVE SYSTEMS INC. (7)
6,459,097 Qubit using a Josephson junction between s-wave and d-wave superconductors 40 2000
6,504,172 Superconducting dot/anti-dot flux qubit based on time-reversal symmetry breaking effects 25 2001
6,563,311 Quantum computing method using magnetic flux states at a josephson junction 31 2001
6,614,047 Finger squid qubit device 18 2001
6,605,822 Quantum phase-charge coupled device 39 2002
6,670,630 Quantum phase-charge coupled device 24 2002
2004/0016,918 System and method for controlling superconducting qubits 26 2002
 
CALIFORNIA INSTITUTE OF TECHNOLOGY (1)
6,128,764 Quantum error-correcting codes and devices 30 1998
 
LUCENT TECHNOLOGIES INC. (1)
6,317,766 Fast quantum mechanical algorithms 33 1998
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
5,917,322 Method and apparatus for quantum information processing 71 1996

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK (9)
7,727,399 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 2 2007
7,588,550 Systems and methods of blood-based therapies having a microfluidic membraneless exchange device 7 2007
8,083,706 Apparatus and systems for membraneless separation of fluids 0 2009
7,850,633 Systems and methods of blood-based therapies having a microfluidic membraneless exchange device 1 2009
8,097,153 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 0 2010
8,021,318 Methods of blood-based therapies having a microfluidic membraneless exchange device 0 2010
8,097,162 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 1 2010
8,092,684 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 0 2010
8,257,593 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams 0 2011
 
D-WAVE SYSTEMS INC. (4)
7,533,068 Analog processor comprising quantum devices 2 2005
7,624,088 Analog processor comprising quantum devices 0 2006
8,008,942 Analog processor comprising quantum devices 0 2009
8,283,943 Analog processor comprising quantum devices 0 2011
 
COLORADO SCHOOL OF MINES (1)
7,930,152 Method for signal and image processing with lattice gas processes 0 2007
 
RAYTHEON BBN TECHNOLOGIES CORP. (1)
8,188,752 Yield improvement for Josephson junction test device formation 0 2009
 
THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO (1)
7,018,852 Methods for single qubit gate teleportation 3 2003
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
8,164,082 Spin-bus for information transfer in quantum computing 0 2006

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