Patents by Inventor Mikhail Lukin

Mikhail Lukin 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: 9361962
    Abstract: A system comprising a solid state lattice containing an electronic spin coupled to a nuclear spin; an optical excitation configuration which is arranged to generate first optical radiation to excite the electronic spin to emit output optical radiation without decoupling the electronic and nuclear spins; wherein the optical excitation configuration is further arranged to generate second optical radiation of higher power than the first optical radiation to decouple the electronic spin from the nuclear spin thereby increasing coherence time of the nuclear spin; a first pulse source configured to generate radio frequency (RF) excitation pulse sequences to manipulate the nuclear spin and to dynamically decouple the nuclear spin from one or more spin impurities in the solid state lattice so as to further increase the coherence time of the nuclear spin; a second pulse source configured to generate microwave excitation pulse sequences to manipulate the electronic spin causing a change in intensity of the output optic
    Type: Grant
    Filed: December 23, 2012
    Date of Patent: June 7, 2016
    Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Georg Kucsko, Peter Maurer, Liang Jiang, Norman Yao, Mikhail Lukin
  • Patent number: 9052448
    Abstract: Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof. Networks of coupled resonator optical waveguides are arranged so as to exploit topological properties of these optical networks. Such arrangement affords topological protection against disorders or perturbations in the network that may hinder or block photon flow. As a result of a disorder, photons traversing along edge states of the array are rerouted based on the disorder or perturbation. Photon routing in the network is accordingly protected against disorder or defects.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 9, 2015
    Assignees: University of Maryland, College Park, President and Fellows of Harvard College, The United States of America, as represented by the Secretary of Commerce
    Inventors: Mohammad Hafezi, Jacob Taylor, Eugene Demler, Mikhail Lukin
  • Patent number: 8947080
    Abstract: A magnetometer for sensing a magnetic field may include a solid state electronic spin system, and a detector. The solid state electronic spin system may contain one or more electronic spins that are disposed within a solid state lattice, for example NV centers in diamond. The electronic spins may be configured to receive optical excitation radiation and to align with the magnetic field in response thereto. The electronic spins may be further induced to precess about the magnetic field to be sensed, in response to an external control such as an RF field, the frequency of the spin precession being linearly related to the magnetic field by the Zeeman shift of the electronic spin energy levels. The detector may be configured to detect output optical radiation from the electronic spin, so as to determine the Zeeman shift and thus the magnetic field.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: February 3, 2015
    Assignee: President and Fellows of Harvard College
    Inventors: Mikhail Lukin, Ronald L. Walsworth
  • Publication number: 20150009746
    Abstract: A system comprising a solid state lattice containing an electronic spin coupled to a nuclear spin; an optical excitation configuration which is arranged to generate first optical radiation to excite the electronic spin to emit output optical radiation without decoupling the electronic and nuclear spins; wherein the optical excitation configuration is further arranged to generate second optical radiation of higher power than the first optical radiation to decouple the electronic spin from the nuclear spin thereby increasing coherence time of the nuclear spin; a first pulse source configured to generate radio frequency (RF) excitation pulse sequences to manipulate the nuclear spin and to dynamically decouple the nuclear spin from one or more spin impurities in the solid state lattice so as to further increase the coherence time of the nuclear spin; a second pulse source configured to generate microwave excitation pulse sequences to manipulate the electronic spin causing a change in intensity of the output optic
    Type: Application
    Filed: December 23, 2012
    Publication date: January 8, 2015
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Georg Kucsko, Peter Maurer, Liang Jiang, Norman Yao, Mikhail Lukin
  • Patent number: 8913900
    Abstract: A novel method and apparatus for long distance quantum communication in realistic, lossy photonic channels is disclosed. The method uses single emitters of light as intermediate nodes in the channel. One electronic spin and one nuclear spin coupled via the contact hyperfine interaction in each emitter, provide quantum memory and enable active error purification. It is shown that the fixed, minimal physical resources associated with these two degrees of freedom suffice to correct arbitrary errors, making our protocol robust to all realistic sources of decoherence. The method is particularly well suited for implementation using recently-developed solid-state nano-photonic devices.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: December 16, 2014
    Assignee: President and Fellows of Harvard College
    Inventors: Mikhail Lukin, Lilian I. Childress, Jacob M. Taylor, Anders S. Sorensen
  • Publication number: 20140358793
    Abstract: A quantum ticket is defined by a unique serial number; and a set of qubits, each qubit encoding quantum information. The serial number and the set of qubits are distributed only among one or more trusted verifiers who require a tolerance fidelity Ftol in order to authenticate the token, where Ftol represents a minimum percentage of correct outcomes during authentication of the serial number and the set of qubits. The experimental fidelity Fexp for the quantum token is greater than the Ft0i set by the verifiers, so that an honest user of the quantum ticket who achieves Fexp is exponentially likely to be successfully authenticated when seeking authentication by any of the trusted verifiers. The forging fidelity Fforg for the quantum token is less than Ft0i, so that a dishonest user who achieves Fforg and attempts forgery of the quantum ticket is exponentially likely to fail to obtain authentication for his forged ticket.
    Type: Application
    Filed: December 23, 2012
    Publication date: December 4, 2014
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Fernando Pastawski, J. Ignacio Cirac, Liang Jiang, Norman Yao, Mikhail Lukin
  • Publication number: 20120308181
    Abstract: Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof. Networks of coupled resonator optical waveguides are arranged so as to exploit topological properties of these optical networks. Such arrangement affords topological protection against disorders or perturbations in the network that may hinder or block photon flow. As a result of a disorder, photons traversing along edge states of the array are rerouted based on the disorder or perturbation. Photon routing in the network is accordingly protected against disorder or defects.
    Type: Application
    Filed: February 3, 2012
    Publication date: December 6, 2012
    Inventors: Mohammad Hafezi, Jacob Taylor, Eugene Demler, Mikhail Lukin
  • Publication number: 20110222848
    Abstract: A novel method and apparatus for long distance quantum communication in realistic, lossy photonic channels is disclosed. The method uses single emitters of light as intermediate nodes in the channel. One electronic spin and one nuclear spin coupled via the contact hyperfine interaction in each emitter, provide quantum memory and enable active error purification. It is shown that the fixed, minimal physical resources associated with these two degrees of freedom suffice to correct arbitrary errors, making our protocol robust to all realistic sources of decoherence. The method is particularly well suited for implementation using recently-developed solid-state nano-photonic devices.
    Type: Application
    Filed: October 11, 2006
    Publication date: September 15, 2011
    Inventors: Mikhail Lukin, Lillian I. Childress, Jacob M. Taylor, Anders S. Sorensen
  • Publication number: 20100315079
    Abstract: A method is disclosed for increasing the sensitivity of a solid state electronic spin based magnetometer that makes use of individual electronic spins or ensembles of electronic spins in a solid-state lattice, for example NV centers in a diamond lattice. The electronic spins may be configured to undergo a Zeeman shift in energy level when photons of light are applied to the electronic spins followed by pulses of an RF field that is substantially transverse to the magnetic field being detected. The method may include coherently controlling the electronic spins by applying to the electronic spins a sequence of RF pulses that dynamically decouple the electronic spins from mutual spin-spin interactions and from interactions with the lattice. The sequence of RF pulses may be a Hahn spin-echo sequence, a Can Purcell Meiboom Gill sequence, or a MREV8 pulse sequence, by way of example.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 16, 2010
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Mikhail Lukin, Ronald L. Walsworth, Amir Yacoby, Paola Capellaro, Jake Taylor, Liang Jiang, Lillian Childress
  • Publication number: 20100308813
    Abstract: A magnetometer for sensing a magnetic field may include a solid state electronic spin system, and a detector. The solid state electronic spin system may contain one or more electronic spins that are disposed within a solid state lattice, for example NV centers in diamond. The electronic spins may be configured to receive optical excitation radiation and to align with the magnetic field in response thereto. The electronic spins may be further induced to precess about the magnetic field to be sensed, in response to an external control such as an RF field, the frequency of the spin precession being linearly related to the magnetic field by the Zeeman shift of the electronic spin energy levels. The detector may be configured to detect output optical radiation from the electronic spin, so as to determine the Zeeman shift and thus the magnetic field.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 9, 2010
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Mikhail Lukin, Ronald L. Walsworth