Patents by Inventor Alexander Omelyanchouk
Alexander Omelyanchouk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6987282Abstract: A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order parameter. The ground state of the supercurrent in the superconducting loop and multi-terminal junction is doubly degenerate, with two supercurrent ground states having distinct magnetic moments. These quantum states of the supercurrents in the superconducting loop create qubits for quantum computing. The quantum states can be initialized by applying transport currents to the external leads. Arbitrary single qubit operations may be performed by varying the transport current and/or an externally applied magnetic field. Read-out may be performed using direct measurement of the magnetic moment of the qubit state, or alternatively, radio-frequency single electron transistor electrometers can be used as read-out devices when determining a result of the quantum computing.Type: GrantFiled: April 20, 2001Date of Patent: January 17, 2006Assignee: D-Wave Systems, Inc.Inventors: Mohammad H. S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Alexandre Blais
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Publication number: 20050162302Abstract: A sub-flux quantum generator includes an N-turn ring having a plurality of connected turns about a common aperture. The width of each respective turn in the N-turn ring exceeds the London penetration depth of a superconducting material used to make the respective turn. The generator includes a switching device configured to introduce a reversible localized break in the superconductivity of at least one turn in the N-turn ring. The generator includes a magnetism device configured to generate a magnetic field within the aperture of the N-turn ring. A method for biasing a superconducting structure that encompasses all or a portion of an N-turn ring. While a supercurrent is flowing through the N-turn ring, a quantized magnetic flux is introduced into the aperture of the N-turn ring using a reversible localized break in a turn in the ring. The quantized magnetic flux is trapped in the ring by removal of the localized break. The trapped flux biases the superconducting structure.Type: ApplicationFiled: March 11, 2005Publication date: July 28, 2005Inventors: Alexander Omelyanchouk, Anatoly Smirnov
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Patent number: 6919579Abstract: A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order parameter. The ground state of the supercurrent in the superconducting loop and multi-terminal junction is doubly degenerate, with two supercurrent ground states having distinct magnetic moments. These quantum states of the supercurrents in the superconducting loop create qubits for quantum computing. The quantum states can be initialized by applying transport currents to the external leads. Arbitrary single qubit operations may be performed by varying the transport current and/or an externally applied magnetic field. Read-out may be performed using direct measurement of the magnetic moment of the qubit state, or alternatively, radio-frequency single electron transistor electrometers can be used as read-out devices when determining a result of the quantum computing.Type: GrantFiled: April 20, 2001Date of Patent: July 19, 2005Assignee: D-Wave Systems, Inc.Inventors: Mohammad H. S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Alexandre Blais
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Patent number: 6905887Abstract: A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.Type: GrantFiled: July 9, 2002Date of Patent: June 14, 2005Assignee: D-Wave Systems, Inc.Inventors: Mohammad H. S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Jeremy P. Hilton
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Patent number: 6627916Abstract: A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.Type: GrantFiled: March 31, 2001Date of Patent: September 30, 2003Assignee: D-Wave Systems, Inc.Inventors: Mohammad H. S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Jeremy P. Hilton
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Publication number: 20030098455Abstract: A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.Type: ApplicationFiled: March 31, 2001Publication date: May 29, 2003Applicant: D-Wave Systems, Inc.Inventors: Mohammad H.S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Jeremy P. Hilton
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Publication number: 20030038285Abstract: A solid state dc-SQUID includes a superconducting loop containing a plurality of Josephson junctions, wherein an intrinsic phase shift is accumulated through the loop. In an embodiment of the invention, the current-phase response of the dc-SQUID sits in a linear regime where directional sensitivity to flux through the loop occurs. Changes in the flux passing through the superconducting loop stimulates current which can be quantified, thus providing a means of measuring the magnetic field. Given the linear and directional response regime of the embodied device, an inherent current to phase sensitivity is achieved that would otherwise be unobtainable in common dc-SQUID devices without extrinsic intervention.Type: ApplicationFiled: July 9, 2002Publication date: February 27, 2003Inventors: Mohammad H.S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Jeremy P. Hilton
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Publication number: 20020121636Abstract: A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order parameter. The ground state of the supercurrent in the superconducting loop and multi-terminal junction is doubly degenerate, with two supercurrent ground states having distinct magnetic moments. These quantum states of the supercurrents in the superconducting loop create qubits for quantum computing. The quantum states can be initialized by applying transport currents to the external leads. Arbitrary single qubit operations may be performed by varying the transport current and/or an externally applied magnetic field. Read-out may be performed using direct measurement of the magnetic moment of the qubit state, or alternatively, radio-frequency single electron transistor electrometers can be used as read-out devices when determining a result of the quantum computing.Type: ApplicationFiled: April 20, 2001Publication date: September 5, 2002Inventors: Mohammad H.S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Alexandre Blais
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Publication number: 20020117656Abstract: A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order parameter. The ground state of the supercurrent in the superconducting loop and multi-terminal junction is doubly degenerate, with two supercurrent ground states having distinct magnetic moments. These quantum states of the supercurrents in the superconducting loop create qubits for quantum computing. The quantum states can be initialized by applying transport currents to the external leads. Arbitrary single qubit operations may be performed by varying the transport current and/or an externally applied magnetic field. Read-out may be performed using direct measurement of the magnetic moment of the qubit state, or alternatively, radio-frequency single electron transistor electrometers can be used as read-out devices when determining a result of the quantum computing.Type: ApplicationFiled: April 20, 2001Publication date: August 29, 2002Inventors: Mohammad H.S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Alexandre Blais
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Publication number: 20020117738Abstract: A solid-state quantum computing qubit includes a multi-terminal junction coupled to a superconducting loop where the superconducting loop introduces a phase shift to the superconducting order parameter. The ground state of the supercurrent in the superconducting loop and multi-terminal junction is doubly degenerate, with two supercurrent ground states having distinct magnetic moments. These quantum states of the supercurrents in the superconducting loop create qubits for quantum computing. The quantum states can be initialized by applying transport currents to the external leads. Arbitrary single qubit operations may be performed by varying the transport current and/or an externally applied magnetic field. Read-out may be performed using direct measurement of the magnetic moment of the qubit state, or alternatively, radio-frequency single electron transistor electrometers can be used as read-out devices when determining a result of the quantum computing.Type: ApplicationFiled: April 20, 2001Publication date: August 29, 2002Inventors: Mohammad H.S. Amin, Timothy Duty, Alexander Omelyanchouk, Geordie Rose, Alexandre Zagoskin, Alexandre Blais