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公开(公告)号：US20170214410A1
公开(公告)日：2017-07-27
申请号：US15328951
申请日：2015-09-23
摘要： In some aspects, a control system interacts with a quantum system. IN some instances, the quantum system includes qubits that respond to a control signal generated by the control system, and the control system is configured to generate the control signal in response to an input signal. A control sequence (which may include, for example, a sequence of values for the input signal) can be generated by a computing system based on a target operation to be applied to the qubits. The control sequence can be generated based on the target operation, a quantum system model, a distortion model and possibly other information. The quantum system model represents the quantum system and includes a control parameter representing the control signal. The distortion model represents a nonlinear relationship between the control signal and the input signal. The control sequence is applied to the quantum system by operation of the control system.
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公开(公告)号：US11564562B2
公开(公告)日：2023-01-31
申请号：US16790336
申请日：2020-02-13
发明人： Dusan Sarenac , Connor Kapahi , David G. Cory , Dmitry A. Pushin
摘要： In a general aspect, a structured optical beam with position-dependent polarizations is prepared for human observation. In some examples, an optics method includes processing an optical beam to produce a structured optical beam for human observation. Processing the optical beam includes receiving the optical beam from a laser source; attenuating the optical beam to an exposure irradiance level that is safe for direct viewing by a human eye; expanding the optical beam to a size configured for a field of view of the human eye; and preparing the optical beam with a position-dependent polarization profile. The structured optical beam, which has the position-dependent polarization profile, is directed towards an observation region for human observation.
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公开(公告)号：US20200274541A1
公开(公告)日：2020-08-27
申请号：US16809944
申请日：2020-03-05
摘要： In some aspects, a control system interacts with a quantum system. In some instances, the quantum system includes qubits that respond to a control signal generated by the control system, and the control system is configured to generate the control signal in response to an input signal. A control sequence (which may include, for example, a sequence of values for the input signal) can be generated by a computing system based on a target operation to be applied to the qubits. The control sequence can be generated based on the target operation, a quantum system model, a distortion model and possibly other information. The quantum system model represents the quantum system and includes a control parameter representing the control signal. The distortion model represents a nonlinear relationship between the control signal and the input signal. The control sequence is applied to the quantum system by operation of the control system.
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公开(公告)号：US20200253469A1
公开(公告)日：2020-08-13
申请号：US16790336
申请日：2020-02-13
发明人： Dusan Sarenac , Connor Kapahi , David G. Cory , Dmitry A. Pushin
摘要： In a general aspect, a structured optical beam with position-dependent polarizations is prepared for human observation. In some examples, an optics method includes processing an optical beam to produce a structured optical beam for human observation. Processing the optical beam includes receiving the optical beam from a laser source; attenuating the optical beam to an exposure irradiance level that is safe for direct viewing by a human eye; expanding the optical beam to a size configured for a field of view of the human eye; and preparing the optical beam with a position-dependent polarization profile. The structured optical beam, which has the position-dependent polarization profile, is directed towards an observation region for human observation.
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公开(公告)号：US10222432B2
公开(公告)日：2019-03-05
申请号：US15307088
申请日：2014-06-17
IPC分类号： G01R33/34
摘要： In some aspects, a resonator device for magnetic resonance applications is described. In some examples, the resonator device includes a resonator body that includes a periodic arrangement of cells about a central interior region. Each cell includes a dielectric substrate and a conductor disposed on the dielectric substrate. The periodic arrangement of the cells defines a periodic network of inductive and capacitive elements adapted to produce a magnetic field in the central interior region. The cells can be arranged according to various topologies that form various capacitive and inductive schemes. In some implementations, a dielectric substrate and thin superconductor are used, and the resonator device exhibits a high quality factor (Q) and low losses.
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公开(公告)号：US09841484B2
公开(公告)日：2017-12-12
申请号：US13931382
申请日：2013-06-28
发明人： Hamidreza Mohebbi , David G. Cory
IPC分类号： G01R33/3415 , G01R33/60 , G01R33/345 , G01R33/34
CPC分类号： G01R33/60 , G01R33/34023 , G01R33/3415 , G01R33/3456
摘要： In some aspects, a resonator device for spin resonance applications is described. In some examples, the resonator device includes a substrate, terminals, and resonators. The terminals include a first terminal having first terminal segments disposed on a substrate surface, and a second terminal having second terminal segments disposed on the substrate surface opposite the first terminal segments. The resonators include conductors disposed on the substrate surface between the first and second terminals. Each conductor is disposed between one of the first terminal segments and a respective, opposite one of the second terminal segments.
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公开(公告)号：US10782464B1
公开(公告)日：2020-09-22
申请号：US15824560
申请日：2017-11-28
发明人： Dusan Sarenac , David G. Cory , Dmitry A. Pushin , Joachim Nsofini , Ian Hincks
摘要： In a general aspect, optical beams are manipulated. In some cases, an optical device includes an inlet to receive a first beam, and one or more prism pairs. Each prism pair includes one or more birefringent gradients configured to transform the first beam into a second beam. The second beam is associated with a lattice of cells, where each cell includes a first portion and a second portion. The first portion is associated with a first orbital angular momentum (OAM) mode and a first polarization, and the second portion is associated with a second OAM mode and a second polarization.
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公开(公告)号：US10215715B1
公开(公告)日：2019-02-26
申请号：US15277190
申请日：2016-09-27
IPC分类号： G01N23/02
摘要： In a general aspect, the spin angular momentum of a neutron wave packet is coupled with the orbital angular momentum of the neutron wave packet. In some instances, an initial state of a neutron wave packet is generated. The neutron wave packet in the initial state has a spin angular momentum that is polarized in an axial direction. The neutron wave packet is directed through a quadrupole magnetic field that couples the spin angular momentum of the neutron wave packet with an orbital angular momentum of the neutron wave packet. A spin-orbit state of the neutron wave packet is produced from the quadrupole magnetic field.
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公开(公告)号：US10197643B2
公开(公告)日：2019-02-05
申请号：US14787665
申请日：2014-05-02
发明人： Grum Teklemariam , David G. Cory
摘要： In some aspects, polarization of a spin ensemble can be increased using cavity-based techniques. A sample contains a first spin ensemble and a second spin ensemble. A drive field couples the first spin ensemble with a cavity, and the coupling increases the polarization of the first spin ensemble. Polarization is transferred from the first spin ensemble to the second spin ensemble. In some examples, the polarization is transferred from a solvent or an abundant species to a solute or a dilute species in the sample.
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公开(公告)号：US10197642B2
公开(公告)日：2019-02-05
申请号：US14787624
申请日：2014-01-31
发明人： Grum Teklemariam , David G. Cory
IPC分类号： G01R33/28 , G01N24/08 , G01R33/30 , G01R33/38 , G01R33/44 , G01R33/385 , G01R33/50 , G01R33/56 , G01N24/10 , G01R33/60
摘要： In some aspects, polarization of a spin ensemble can be increased using cavity-based techniques. A resonator applies a drive field to a spin ensemble in a sample in a static magnetic field. The drive field couples the spin ensemble with a cavity, and the coupling increases the polarization of the spin ensemble. In some cases, the sample is thermally insulated from the cavity, for example, to maintain the sample at a higher temperature than the cavity. In some implementations, the spin ensemble achieves a polarization that is higher than its thermal equilibrium polarization.
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