# Pesetski, MD

## Aaron A. Pesetski, Gambrills, MD US

Patent application number | Description | Published |
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20080296562 | Methods and apparatus for fabricating carbon nanotubes and carbon nanotube devices - Methods and apparatus for fabricating carbon nanotubes (CNTs) and carbon nanotube devices. These include a method of fabricating self-aligned CNT field-effect transistors (FET), a method and apparatus of selectively etching metallic CNTs and a method and apparatus of fabricating an oxide in a carbon nanotube (CNT) device. These methods and apparatus overcome many of the disadvantages and limitations of the prior art. | 12-04-2008 |

20090033369 | ARBITRARY QUANTUM OPERATIONS WITH A COMMON COUPLED RESONATOR - A quantum logic gate is formed from multiple qubits coupled to a common resonator, wherein quantum states in the qubits are transferred to the resonator by transitioning a classical control parameter between control points at a selected one of slow and fast transition speeds, relative to the characteristic energy of the coupling, whereby a slow transition speed exchanges energy states of a qubit and the resonator, and a fast transition speed preserves the energy states of a qubit and the resonator. | 02-05-2009 |

20090206871 | ARBITRARY QUANTUM OPERATIONS WITH A COMMON COUPLED RESONATOR - A quantum logic gate is formed from multiple qubits coupled to a common resonator, wherein quantum states in the qubits are transferred to the resonator by transitioning a classical control parameter between control points at a selected one of slow and fast transition speeds, relative to the characteristic energy of the coupling, whereby a slow transition speed exchanges energy states of a qubit and the resonator, and a fast transition speed preserves the energy states of a qubit and the resonator. | 08-20-2009 |

20090267635 | METHOD AND APPARATUS FOR HIGH DENSITY SUPERCONDUCTOR CIRCUIT - The disclosure relates to a method for providing a logic circuit element. The method includes arranging a series of Josephson junctions between a first Josephson junction and a second Josephson junction, the first Josephson junction having a first critical current (I | 10-29-2009 |

20090322374 | METHOD AND APPARATUS FOR CONTROLLING QUBITS WITH SINGEL FLUX QUANTUM LOGIC - 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. | 12-31-2009 |

20100182039 | Quantum Gate Operations with a Common Coupled Resonator - Systems and methods are provided for performing a quantum gate operation. A first classical control parameter is associated with a first qubit and coupled to a resonator. The first classical control parameter is transitioned from a first control value to a second control value. The first classical control parameter is returned from the second control value to the first control value via an adiabatic sweep operation, as to permit a transfer of energy between the first qubit and the resonator that causes a change in the quantum state of the qubit and resonator. | 07-22-2010 |

20110133770 | METHOD AND APPARATUS FOR CONTROLLING QUBITS WITH SINGLE FLUX QUANTUM LOGIC - 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. | 06-09-2011 |

20110241765 | PHASE QUANTUM BIT - 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. | 10-06-2011 |

20120081184 | HIGH IMPEDANCE MICROWAVE ELECTRONICS - 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. | 04-05-2012 |

20120124432 | SYSTEM AND METHOD FOR PHASE ERROR REDUCTION IN QUANTUM SYSTEMS - 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. | 05-17-2012 |

20120144159 | QUANTUM PROCESSOR - 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. | 06-07-2012 |

20120159272 | METHODS OF INCREASING FIDELITY OF QUANTUM OPERATIONS - 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. | 06-21-2012 |

20120182178 | Carbon nanotube devices and method of fabricating the same - An imaging system includes an RF source, a focal plane array and device for focusing the RF signal from the RF source. The focal plane array includes a plurality of carbon nanotube mixers for capturing RF signals and down-converting the signals to a selected bandwidth and output an output signal. The device focuses the RF signal output from said RF source onto the focal plane array. | 07-19-2012 |

20130015885 | QUBIT READOUT VIA RESONANT SCATTERING OF JOSEPHSON SOLITONSAANM NAAMAN; OFERAACI Ellicot CityAAST MDAACO USAAGP NAAMAN; OFER Ellicot City MD USAANM Park; Jae I.AACI BoulderAAST COAACO USAAGP Park; Jae I. Boulder CO USAANM Pesetski; Aaron A.AACI GambrillsAAST MDAACO USAAGP Pesetski; Aaron A. Gambrills MD US - Systems and methods are provided for reading an associated state of a qubit. A first soliton is injected along a first Josephson transmission line coupled to the qubit. A velocity of the first soliton is selected according to a physical length of the qubit and a characteristic frequency of the qubit. A second soliton is injected at the selected velocity along a second Josephson transmission line that is not coupled to the qubit. A delay associated with the first soliton is determined relative to the second soliton. | 01-17-2013 |

## Aaron A. Pesetski, Grambrills, MD US

Patent application number | Description | Published |
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20100026538 | METHOD AND APPARATUS FOR MATCHED QUANTUM ACCURATE FEEDBACK DACS - A second order superconductor delta-sigma analog-to-digital modulator having an input for receiving an analog signal, a first integrator coupled to the input, a second integrator cascaded with the first integrator, and a quantum comparator digitizing output from the second integrator reduces quantization noise by providing matched quantum accurate DACs in a feedback loop between output from the quantum comparator and input to the first integrator. The matched quantum accurate feedback DACs produce identically repeatable voltage pulses, may be configured for multi-bit output, may be time-interleaved to permit higher clocking rates, and may be employed in a balanced bipolar configuration to allow inductive input coupling. Bipolar feedback is balanced when gain of a first DAC exceeds gain of a matched, opposite polarity DAC by the amount of implicit feedback from the comparator into the second integrator. | 02-04-2010 |

## Aaron Anthony Pesetski, Gamgrills, MD US

Patent application number | Description | Published |
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20090148095 | SYSTEM AND METHOD FOR OPTICAL BEAM STEERING USING NANOWIRES AND METHOD OF FABRICATING SAME - An apparatus and a method for steering optical frequency beams using nanowire. A method includes providing one or more nanowire waveguide arrays, generating an optical frequency beam, wherein the optical frequency beam is incident on the one or more nanowire waveguide arrays, controlling the one or more nanowire waveguide arrays to produce a phase delay in the optical frequency beam as it traverses the nanowire waveguide array, wherein the phase delay causes the optical frequency beam to deflect upon exiting the one or more nanowire waveguide arrays, and steering the optical frequency beam exiting the one or more nanowire waveguide arrays by increasing or decreasing the phase delay, wherein the angle of deflection of the exiting optical frequency beam is determined by the amount of phase delay. | 06-11-2009 |

## Hong Z. Pesetski, Gambrills, MD US

Patent application number | Description | Published |
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20120081184 | HIGH IMPEDANCE MICROWAVE ELECTRONICS - 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. | 04-05-2012 |

## Hong Zhang Pesetski, Gambrills, MD US

Patent application number | Description | Published |
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20080296562 | Methods and apparatus for fabricating carbon nanotubes and carbon nanotube devices - Methods and apparatus for fabricating carbon nanotubes (CNTs) and carbon nanotube devices. These include a method of fabricating self-aligned CNT field-effect transistors (FET), a method and apparatus of selectively etching metallic CNTs and a method and apparatus of fabricating an oxide in a carbon nanotube (CNT) device. These methods and apparatus overcome many of the disadvantages and limitations of the prior art. | 12-04-2008 |