Patents Assigned to Government of the United States of America, as Represented by the Secretary of Commerce
-
Patent number: 12026586Abstract: Preparing a metrologically-relevant entangled state includes: providing a plurality of atoms in a regular lattice, wherein each atom is in an initial quantum state of a first state in a ground state manifold; initializing a central atom in the regular lattice to a (|0+|1)/?2 state while all other atoms remain in the first state |0 as remaining atoms; and proceeding, starting with the central atom, to propagate preparation of Greenberger-Horne-Zeilinger (GHZ) states in a nonlinear progression by increasing a number of GHZ states in each iteration through the remaining atoms in a recursive manner, to produce an intermediate GHZ state, such that the intermediate GHZ state acts as an initial GHZ state for a next iteration, until a final GHZ state is formed to prepare the metrologically-relevant entangled state of the atoms.Type: GrantFiled: November 19, 2021Date of Patent: July 2, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Alexey Vyacheslavovich Gorshkov, Adam Micah Kaufman, Jeremy Thomas Young, Przemyslaw D. Bienias, Ron Belyansky
-
Patent number: 12014247Abstract: A method for detecting a two-qubit correlated dephasing error includes accessing a signal of a quantum system, where the quantum system includes a plurality of qubits. Every qubit has a nonzero rate of dephasing and some qubits have a nonzero rate of correlated dephasing. The signal further includes information about a matrix that includes diagonal elements and off-diagonal elements. The off-diagonal elements of the matrix are 2s-sparse. The method further includes performing randomized measurements of the off-diagonal elements of the matrix and recovering the matrix based on a direct measurement of the diagonal elements of the matrix.Type: GrantFiled: May 13, 2022Date of Patent: June 18, 2024Assignees: University of Maryland, College Park, Government of the United States of America, As Represented by the Secretary of CommerceInventors: Seyed Alireza Seif Tabrizi, Mohammad Hafezi, Yi-Kai Liu
-
Patent number: 12009418Abstract: A core-shell nanofin vertical switch performs high-voltage switching and includes: an n-type GaN nanofin core including: an n-type drift layer; an n-type channel; and an n-type source; a p-type nanofin shell surrounding the n-type GaN nanofin core at an interface surface of the n-type GaN nanofin core, and comprising GaN; an optional source contact disposed on the n-type GaN nanofin core and the p-type nanofin shell and in electrical communication with the n-type source, such that the n-type source is interposed between the source contact and the n-type channel; and a gate contact disposed on the p-type nanofin shell and in electrical communication with the p-type nanofin shell, such that the p-type nanofin shell is interposed between the gate contact and the n-type channel, and the gate contact is interposed between the source contact and a drain contact.Type: GrantFiled: August 24, 2022Date of Patent: June 11, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Kristine Ann Bertness, Matthew David Brubaker, Patrick John Fay
-
Patent number: 11980105Abstract: The various embodiments described herein include methods, devices, and systems for operating superconducting circuits. In one aspect, an electric circuit includes: (1) a superconductor component having a first terminal at a first end and a second terminal at a second end; (2) a gate component thermally-coupled to the superconductor component at a first location between the first terminal and the second terminal, where the gate component is thermally-coupled via a first section of the gate component; and where the gate component has a smallest width at the first section so as to focus resistive heating toward the superconductor component.Type: GrantFiled: April 26, 2021Date of Patent: May 7, 2024Assignees: PSIQUANTUM CORP., Government of the United States of America, as Represented by the Secretary of CommerceInventors: Faraz Najafi, Qiaodan Jin Stone, Adam Nykoruk McCaughan
-
Patent number: 11968540Abstract: Systems and methods for independently managing wireless transmission by individual spectrum access systems in a radio frequency spectrum shared by a plurality of spectrum access systems. An example method includes: receiving, by the spectrum access system, an interference budget from a sensor; determining, by the spectrum access system, secondary users managed by the spectrum access system in a radio frequency spectrum shared by a plurality of spectrum access systems; managing a move list for the spectrum access system independently of the other spectrum access systems in an absence of exchange of spectrum grant information with the other spectrum access systems; and determining the move list for the spectrum access system from a first moment and a second moment of an aggregate interference distribution such that the spectrum access system provides grants to its secondary users in a dynamic protection area of the spectrum access system.Type: GrantFiled: June 7, 2021Date of Patent: April 23, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Thao Tran-Nhu Nguyen, Michael Rafat Souryal
-
Patent number: 11956601Abstract: An interferometric microphone calibrator for comparison calibrating a microphone, the interferometric microphone calibrator comprising: an interferometer in optical communication with a microphone and that produces an interferometer measurement light, communicates the interferometer measurement light to the microphone, and receives an interferometer backscattered light from the microphone, such that a sensitivity of a test microphone is interferometrically calibrated to a reference microphone from the interferometer backscattered light; a preamplifier-controller in electrical communication with the microphone, and that receives a driver signal from a microphone driver and drives the microphone driver; the microphone driver in electrical communication with the preamplifier-controller and that receives a driver control signal from a calibration controller and produces the driver signal based on the driver control signal; and a calibration controller in electrical communication with the microphone driver and thaType: GrantFiled: June 8, 2022Date of Patent: April 9, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Richard Albert Allen, Randall Paul Wagner, Qian Dong
-
Patent number: 11939345Abstract: A physiologically stable fluorophore includes a terminal moiety including a terminal reactive site that reacts with a reactive group of a substrate; a stability linker covalently bonded to the terminal moiety; and a bridge moiety covalently bonded to the stability linker such that the stability linker is interposed through chemical bonds between the bridge moiety and the terminal moiety; and a fluorescent moiety covalently bonded to the bridge moiety of the redox moiety and including: an electron bandgap mediator that is covalently bonded to the bridge moiety; a coordinate center covalently bonded to the electron bandgap mediator and that forms a Zwitterionic member with an atom in the electron bandgap mediator; and a steric hinder bonded to the electron bandgap mediator to provide steric hindrance for protection of the coordinate center.Type: GrantFiled: December 10, 2020Date of Patent: March 26, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jeremiah Wallace Woodcock, Jeffrey William Gilman, Douglas Matthew Fox
-
Patent number: 11940276Abstract: An inertial point-source matter-wave atom interferometer gyroscope includes an analyzer that receives fringe images of gyroscope atoms and includes: a first fringe image that includes a first fringe phase, a second fringe image that includes a second fringe phase; and a third fringe image that includes a third fringe phase, wherein the first fringe phase, the second fringe phase, and the third fringe phase are different; a phase mapper of the analyzer that produces a interferometric phase map for the gyroscope atoms from the fringe images of the gyroscope atoms; and a fitter of the analyzer in communication with the phase mapper and that receives the interferometric phase map from the analyzer and determines inertial parameters of the gyroscope atoms from the interferometric phase map, the inertial parameters including an acceleration and a rotation rate of the inertial point-source matter-wave atom interferometer gyroscope relative to the gyroscope atoms.Type: GrantFiled: February 17, 2021Date of Patent: March 26, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: John Edward Kitching, Elizabeth Ann Donley, Azure Lynn Hansen, Yun-Jhih Chen
-
Patent number: 11940714Abstract: A quantum EIT-based optical switch includes a first waveguide, linear or nonlinear, a separate nonlinear waveguide evanescently coupled to the first waveguide, and a pump coupled to the nonlinear waveguide. A quantum STIRAP-based optical transduction device, which includes an auxiliary, intermediate spectral state for the quantum signal that aids efficient transduction of the quantum signal from the input spectral state to the output spectral state in a single device.Type: GrantFiled: December 8, 2021Date of Patent: March 26, 2024Assignees: University of Maryland, College Park, Government of the United States of America, as Represented by the Secretary of CommerceInventors: Ivan A. Burenkov, Sergey V. Polyakov
-
Patent number: 11933922Abstract: Hybrid subtractive-additive production of a superconducting multi-layer transition-edge sensor includes: forming a superconductor layer; forming a patterning photoresist on the superconductor layer; forming a sensor pattern in the patterning photoresist; subtractively forming, from the superconductor layer, the superconductor sensor layer; removing the patterning photoresist from the superconductor sensor layer; forming a template photoresist on the superconductor sensor layer; forming an inverse normal metal layer pattern in the template photoresist and exposing a bilayer portion of the superconductor sensor layer for addition of a normal metal layer; and additively forming the normal metal layer on the superconductor sensor layer such that the sensor pattern is interposed between the normal metal layer and the substrate.Type: GrantFiled: March 5, 2021Date of Patent: March 19, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Daniel Richard Schmidt, Joel Calvin Weber
-
Patent number: 11905504Abstract: A body cube for culturing tissue that includes: an organ chip holder; and a body barrier chip and a first body organ chip disposed in the organ chip holder, the first body organ chip including a first cell culture chamber that receives cell culture medium and produces a first tissue in the first cell culture chamber, such that the organ chip holder receives cell culture medium and communicates the cell culture medium to the first cell culture chamber of the first body organ chip in response to rotation of the organ chip holder.Type: GrantFiled: April 19, 2021Date of Patent: February 20, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Mandy Brigitte Esch, Longyi Chen
-
Patent number: 11906350Abstract: A calibration apparatus for calibrating a laser Doppler vibrometer includes: a frequency shifter stage that: receives, from the laser Doppler vibrometer, primary laser light; produces frequency shifted light; communicates the frequency shifted light to a reflector; receives frequency shifted light reflected by the reflector; produces secondary light; and communicates the secondary light to the laser Doppler vibrometer, such that the laser Doppler vibrometer receives the secondary light from the frequency shifter stage and produces a synthetic velocity shift from the secondary light; and the reflector that receives and reflects the frequency shifted light back to the frequency shifter stage.Type: GrantFiled: June 2, 2021Date of Patent: February 20, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Michael Gaitan, Jon Clement Geist, Benjamin James Reschovsky, Akobuije Douglas Eziani Chijioke
-
Patent number: 11885979Abstract: High-performance optical-metasurface-based components configured to at frequencies of UV light and, in particular, in deep UV range and performing multiple optical-wavefront-shaping functions (among which there are high-numerical-aperture lensing, accelerating beam generation, and hologram projection). As a representative material for such components, hafnium oxide demands creation and establishment of a novel process of manufacture that is nevertheless based on general principles of Damascene lithography, to be compatible with existing technology and yet sufficient for producing high-aspect-ratio features that currently-used materials and processes simply do not deliver. The described invention opens a way towards low-form-factor, multifunctional ultraviolet nanophotonic platforms based on flat optical components and enabling diverse applications including lithography, imaging, spectroscopy, and quantum information processing.Type: GrantFiled: December 29, 2020Date of Patent: January 30, 2024Assignees: UNIVERSITY OF MARYLAND, COLLEGE PARK, GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Cheng Zhang, Shawn Divitt, Wenqi Zhu, Amit Kumar Agrawal, Henri Lezec
-
Patent number: 11879952Abstract: An atomic vapor cell for performing RF measurements includes: a first optical window of transparent nonconducting material free of electrically conductive materials; an intermediate frame of transparent nonconducting material free of electrically conductive materials; a second optical window disposed on the intermediate frame and including transparent nonconducting material free of electrically conductive materials to minimize distortion of radiofrequency fields by the windows and frame; and a cell aperture, wherein the atomic vapor cell is hermetically sealed by bonding between the first optical window and the second optical window to the intermediate frame.Type: GrantFiled: July 13, 2021Date of Patent: January 23, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Christopher Lee Holloway, John Edward Kitching, Alexandra Brae Artusio-Glimpse, Vladimir Anatolyevich Aksyuk, Matthew Thomas Simons, Omar Daniel Lopez
-
Patent number: 11876211Abstract: A prelithiated lithium ion battery includes: ion beam implanted lithium; a cathode; and an anode disposed on the cathode and an electrolyte in electrical communication with the cathode and the anode, the cathode or the anode including the ion beam implanted lithium such that: when the cathode includes the ion beam implanted lithium, the ion beam implanted lithium is present in an absence of solid electrolyte interface composition in the cathode; and when the anode includes the ion beam implanted lithium, the ion beam implanted lithium is present in an absence of solid electrolyte interface composition in the anode.Type: GrantFiled: September 11, 2020Date of Patent: January 16, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Vladimir Pavlovich Oleshko, Christopher Lloyd Soles, Jabez Jenkins McClelland
-
Patent number: 11874504Abstract: Disclosed is an optoelectromechanical switch that includes: an optical feedline disposed on an isolation substrate that receives resonator light that is subject to optical communication to a resonator when a cavity length of the resonator supports an electromagnetic mode at the wavelength of the resonator light; a resonator including: a low refractive index optical layer and receives substrate electrical counter potential; a non-conductive spacer; the electrically conductive membrane and that receives a membrane electrical potential and deflects toward and away from the electrically conductive high-index optical waveguide based on a difference in potential between the membrane electrical potential and the substrate electrical counter potential; the cavity length that is variable and under electromechanical control.Type: GrantFiled: September 30, 2021Date of Patent: January 16, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Vladimir Anatolyevich Aksyuk, Christian Haffner, Henri J. Lezec, Andreas Joerg, Mikael Mazur, Daniel Chelladurai, Jueg Leuthold
-
Patent number: 11860420Abstract: An optical cavity includes a ring defining an internal boundary and an external boundary, at least one of which is periodically modulated to define a gear-shaped configuration including a plurality of teeth, thereby enabling a plurality of slow-light modes. At least one physical defect may be defined within the periodically modulated internal boundary and/or external boundary to thereby enable at least one localized mode. At least one waveguide is coupled to the ring.Type: GrantFiled: February 17, 2022Date of Patent: January 2, 2024Assignees: University of Maryland, College Park, Government of the United States of America, as Represented by the Secretary of CommerceInventors: Kartik Srinivasan, Xiyuan Lu
-
Patent number: 11817173Abstract: Systems and methods are provided herein that implement and utilize temporal state machines and other temporal computational/memory circuits. For example, a temporal state machine is provided that comprises a temporal computational unit comprising at least one circuit to perform a time-domain operation, and a temporal memory unit. Both the temporal computational unit and temporal memory unit can operate using solely, or partially, time-encoded wavefronts. The computation unit accesses time-encoded wavefronts from the memory and can output and write time-encoded wavefronts back to the memory.Type: GrantFiled: October 1, 2021Date of Patent: November 14, 2023Assignees: UNIVERSITY OF MARYLAND, COLLEGE PARK, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Advait Madhavan, Matthew William Daniels, Mark David Stiles
-
Publication number: 20230305289Abstract: A dynamically tunable composition, a device including the composition, a method of dynamically tuning radiation transmission through the composition, and a method of thermo-reversibly controlling operation of a filter formed from the composition. The composition includes a plurality of nanoparticles dispersed in a single phase region of a binary solvent systems composed of a first solvent and a second solvent, the nanoparticles having a preferential wettability to the first solvent. Changing temperature of the composition causes it to transition thermo-reversibly from the liquid state to a gel state having bi-continuous domains, including a particle domain and a solvent domain. The particle domain features nanoparticles dispersed in a first-solvent-rich fraction of the binary solvent system, and the solvent domain is a second-solvent-rich fraction of the binary solvent system.Type: ApplicationFiled: July 27, 2021Publication date: September 28, 2023Applicants: University of Delaware, Government of the United States of America, as represented by the Secretary of CommerceInventors: Yuyin Xi, Yun Liu
-
Patent number: 11768147Abstract: A quantum flow cytometer for detecting an analyte with photon-number statistics includes: a flow cytometer that: receives a pump light in a first direction; receives an analyte flow comprising the analyte in a second direction; and produces scattered light from scattering the pump light by the analyte; a single photon detector in optical communication with the flow cytometer and that: receives, in a third direction, the scattered light from the flow cytometer; provides a correlative time-of-arrival waveform comprising photon-number statistics as an amplitude and an integrated area, the integrated area being proportional to a number of photons received by the single photon detector, wherein the first direction, the second direction, and the third direction are arranged at oblique angles.Type: GrantFiled: May 20, 2021Date of Patent: September 26, 2023Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Sergey Vladimirovich Polyakov, Ivan Alexandrovich Burenkov, Yu-Hsiang Cheng