Patents by Inventor James E. Baumgardner
James E. Baumgardner 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).
-
Patent number: 9780764Abstract: A phase quantum bit is disclosed. In one embodiment, the phase quantum bit may comprise a Josephson junction and a distributed element coupled to the Josephson junction. The distributed element provides a capacitive component and an inductive component of the phase quantum bit.Type: GrantFiled: April 5, 2010Date of Patent: October 3, 2017Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner, Rupert M. Lewis
-
Patent number: 9208446Abstract: Systems and methods are provided for improving fidelity of a quantum operation on a quantum bit of interest. A controlled quantum gate operation, controlled by the quantum bit of interest, id performed on an ancillary quantum bit. An energy state of the ancillary quantum bit is measured to facilitate the improvement of the fidelity of the quantum operation.Type: GrantFiled: December 26, 2013Date of Patent: December 8, 2015Inventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20150186791Abstract: Systems and methods are provided for improving fidelity of a quantum operation on a quantum bit of interest. A controlled quantum gate operation, controlled by the quantum bit of interest, id performed on an ancillary quantum bit. An energy state of the ancillary quantum bit is measured to facilitate the improvement of the fidelity of the quantum operation.Type: ApplicationFiled: December 26, 2013Publication date: July 2, 2015Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: AARON A. PESETSKI, JAMES E. BAUMGARDNER
-
Patent number: 9035704Abstract: High impedance, high frequency nanoscale device electronics configured to interface with low impedance loads include an impedance transforming stage constructed of multiple nanoscale devices, such as carbon nanotube field-effect transistors. In an embodiment of the present invention, an impedance transforming output stage of a multistage amplifier is configured to drive a 50 ohm transmission line with unity voltage gain using multiple carbon nanotube field-effect transistors in parallel. In a further embodiment, a receiver provided for an electronically steered receive array is a monolithic, lumped-element system formed from nanoscale devices and configured to interface with the external electrical systems via a single transmission line.Type: GrantFiled: October 1, 2010Date of Patent: May 19, 2015Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, Hong Z. Pesetski, James E. Baumgardner, II, Dale E. Dawson
-
Patent number: 8922239Abstract: One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency. A qubit cell is coupled to each of the first resonator and the second resonator. The qubit cell has a frequency tunable over a range of frequencies including the first characteristic frequency and the second characteristic frequency. A classical control mechanism is configured to tune the frequency of the qubit cell as to transfer quantum information between the first resonator and the second resonator.Type: GrantFiled: May 7, 2013Date of Patent: December 30, 2014Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20140203838Abstract: One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency. A qubit cell is coupled to each of the first resonator and the second resonator. The qubit cell has a frequency tunable over a range of frequencies including the first characteristic frequency and the second characteristic frequency. A classical control mechanism is configured to tune the frequency of the qubit cell as to transfer quantum information between the first resonator and the second resonator.Type: ApplicationFiled: May 7, 2013Publication date: July 24, 2014Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventors: AARON A. PESETSKI, JAMES E. BAUMGARDNER
-
Patent number: 8631367Abstract: Systems and methods are provided for improving fidelity of a quantum operation on a quantum bit of interest. A controlled quantum gate operation, controlled by the quantum bit of interest, id performed on an ancillary quantum bit. An energy state of the ancillary quantum bit is measured to facilitate the improvement of the fidelity of the quantum operation.Type: GrantFiled: December 16, 2010Date of Patent: January 14, 2014Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Patent number: 8554305Abstract: Prior approaches have delivered 17O2 to a subject by inhalation, but the relationship between local signal changes and metabolism has been complicated by H217O created in non-cerebral tissues. During a brief pulse of 17O2 inhalation, this arterial input function for H217O is negligible due to convective transport delays. Additional delays in the arterial input function due to restricted diffusion of water makes pulsed inhalation of 17O2 even more effective. Accordingly, ventilator system are provided to deliver 17O2 as a brief pulse to a subject. Subsequent MR imaging demonstrates delayed appearance of H217O in the cerebral ventricles, suggesting that the arterial input function of H217O is delayed by restricted water diffusion in addition to convective transit delays. Delivery as a brief pulse therefore offers significant advantages in relating MR signal changes directly to metabolism.Type: GrantFiled: July 18, 2008Date of Patent: October 8, 2013Assignee: The Trustees of the University of PennsylvaniaInventors: Dharmesh R. Tailor, James E. Baumgardner, Ravinder Reddy
-
Patent number: 8510618Abstract: Systems and methods are provided for performing a quantum error correction. An error correction is performed on each of a plurality of qubit sets restore a desired basis state of the qubit set. Each qubit set corresponds to an associated logical qubit. A number of corrected qubits at each of the plurality of qubit sets are recorded. A first set of the plurality of logical qubits having a first state and a second set of the plurality of logical qubits having a second state are determined. One of the first set of logical qubits and the second set of logical qubits are corrected according to the recorded numbers of corrected qubits.Type: GrantFiled: May 17, 2011Date of Patent: August 13, 2013Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Patent number: 8461862Abstract: One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency. A qubit cell is coupled to each of the first resonator and the second resonator. The qubit cell has a frequency tunable over a range of frequencies including the first characteristic frequency and the second characteristic frequency. A classical control mechanism is configured to tune the frequency of the qubit cell as to transfer quantum information between the first resonator and the second resonator.Type: GrantFiled: November 30, 2011Date of Patent: June 11, 2013Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Patent number: 8242799Abstract: One embodiment of the invention includes a quantum system. The system includes a superconducting qubit that is controlled by a control parameter to manipulate a photon for performing quantum operations. The system also includes a quantum resonator system coupled to the superconducting qubit and which includes a first resonator and a second resonator having approximately equal resonator frequencies. The quantum resonator system can represent a first quantum logic state based on a first physical quantum state of the first and second resonators with respect to storage of the photon and a second quantum logic state based on a second physical quantum state of the first and second resonators with respect to storage of the photon.Type: GrantFiled: November 16, 2010Date of Patent: August 14, 2012Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20120159272Abstract: Systems and methods are provided for improving fidelity of a quantum operation on a quantum bit of interest. A controlled quantum gate operation, controlled by the quantum bit of interest, id performed on an ancillary quantum bit. An energy state of the ancillary quantum bit is measured to facilitate the improvement of the fidelity of the quantum operation.Type: ApplicationFiled: December 16, 2010Publication date: June 21, 2012Inventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20120144159Abstract: One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency. A qubit cell is coupled to each of the first resonator and the second resonator. The qubit cell has a frequency tunable over a range of frequencies including the first characteristic frequency and the second characteristic frequency. A classical control mechanism is configured to tune the frequency of the qubit cell as to transfer quantum information between the first resonator and the second resonator.Type: ApplicationFiled: November 30, 2011Publication date: June 7, 2012Inventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20120124432Abstract: One embodiment of the invention includes a quantum system. The system includes a superconducting qubit that is controlled by a control parameter to manipulate a photon for performing quantum operations. The system also includes a quantum resonator system coupled to the superconducting qubit and which includes a first resonator and a second resonator having approximately equal resonator frequencies. The quantum resonator system can represent a first quantum logic state based on a first physical quantum state of the first and second resonators with respect to storage of the photon and a second quantum logic state based on a second physical quantum state of the first and second resonators with respect to storage of the photon.Type: ApplicationFiled: November 16, 2010Publication date: May 17, 2012Inventors: Aaron A. PESETSKI, James E. BAUMGARDNER
-
Publication number: 20120081184Abstract: High impedance, high frequency nanoscale device electronics configured to interface with low impedance loads include an impedance transforming stage constructed of multiple nanoscale devices, such as carbon nanotube field-effect transistors. In an embodiment of the present invention, an impedance transforming output stage of a multistage amplifier is configured to drive a 50 ohm transmission line with unity voltage gain using multiple carbon nanotube field-effect transistors in parallel. In a further embodiment, a receiver provided for an electronically steered receive array is a monolithic, lumped-element system formed from nanoscale devices and configured to interface with the external electrical systems via a single transmission line.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Applicant: Northrop Grumman Systems CorporationInventors: Aaron A. PESETSKI, Hong Z. Pesetski, James E. Baumgardner, II, Dale E. Dawson
-
Patent number: 8138784Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: GrantFiled: February 7, 2011Date of Patent: March 20, 2012Assignee: Northrop Grumman Systems CorporationInventors: John Xavier Przybysz, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Quentin P. Herr
-
Patent number: 8111083Abstract: One embodiment of the invention includes a quantum processor system. The quantum processor system includes a first resonator having a first characteristic frequency and a second resonator having a second characteristic frequency greater than the first characteristic frequency. A qubit cell is coupled to each of the first resonator and the second resonator. The qubit cell has a frequency tunable over a range of frequencies including the first characteristic frequency and the second characteristic frequency. A classical control mechanism is configured to tune the frequency of the qubit cell as to transfer quantum information between the first resonator and the second resonator.Type: GrantFiled: December 1, 2010Date of Patent: February 7, 2012Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Publication number: 20110241765Abstract: A phase quantum bit is disclosed. In one embodiment, the phase quantum bit may comprise a Josephson junction and a distributed element coupled to the Josephson junction. The distributed element provides a capacitive component and an inductive component of the phase quantum bit.Type: ApplicationFiled: April 5, 2010Publication date: October 6, 2011Inventors: Aaron A. Pesetski, James E. Baumgardner, Rupert M. Lewis
-
Patent number: 8022722Abstract: Systems and methods are provided for performing a quantum gate operation. A first classical control parameter, configured to tune an associated frequency of a first qubit, is adjusted from a first value to a second value. The first value is selected such that the first qubit is tuned far from a characteristic frequency of an associated resonator, and the second value is selected such that the first qubit is tuned near to the characteristic frequency of the resonator. A second classical control parameter, configured to tune an associated frequency of a second qubit, is adjusted from a third value to a fourth value. The third value is selected such that the second qubit is tuned far from the characteristic frequency of the resonator. The first classical control parameter is returned to the first value. The second classical control parameter is returned to the third value.Type: GrantFiled: June 4, 2010Date of Patent: September 20, 2011Assignee: Northrop Grumman Systems CorporationInventors: Aaron A. Pesetski, James E. Baumgardner
-
Patent number: 7969178Abstract: In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.Type: GrantFiled: May 29, 2008Date of Patent: June 28, 2011Assignee: Northrop Grumman Systems CorporationInventors: John Xavier Przybysz, James E. Baumgardner, Aaron A. Pesetski, Donald Lynn Miller, Ouentin P. Herr