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公开(公告)号：US11604362B1
公开(公告)日：2023-03-14
申请号：US16442461
申请日：2019-06-15
Applicant: ColdQuanta, Inc.
Inventor： Steven Michael Hughes
Abstract: Beamformers are formed (e.g., carved) from a stack of transparent sheets. A rear face of each sheet has a reflective coating. The reflectivities of the coatings vary monotonically with sheet position within the stack. The sheets are tilted relative to the intended direction of an input beam and then bonded to form the stack. The carving can include dicing the stack to yield stacklets, and polishing the stacklets to form beamformers. Each beamformer is thus a stack of beamsplitters, including a front beamsplitter in the form of a triangular or trapezoidal prism, and one or more beamsplitters in the form of rhomboid prisms. In use, a beamformer forms an output beam from an input beam. More specifically, the beamformer splits an input beam into plural output beam components that collectively constitute an output beam that differs in cross section from the input beam.
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92.发明授权公开(公告)号：US11575860B2
公开(公告)日：2023-02-07
申请号：US16859743
申请日：2020-04-27
Applicant: Wisconsin Alumni Research Foundation , ColdQuanta, Inc.
Inventor： Mark Saffman , Trent Michael Graham , Robert Sylvester Williamson, III
Abstract: Systems and methods for the optical control of qubits and other quantum particles with spatial light modulators (SLM) for quantum computing and quantum simulation are disclosed herein. The system may include a particle system configured to provide an ordered array comprising a multiplicity of quantum particles or a multiplicity of qubits, an optical source, a SLM configured to project a structured illumination pattern capable of individually addressing one or more quantum particles or qubits of the ordered array, and a SLM controller.
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公开(公告)号：US11488052B1
公开(公告)日：2022-11-01
申请号：US17727760
申请日：2022-04-24
Applicant: ColdQuanta, Inc.
Inventor： Mark Saffman
Abstract: A pair of acousto-optic deflectors (AODs) is used to steer a pair of laser beams to address individual atoms of an array of atoms so that the beams can conditionally induce a 2-photon transition between the atom's quantum energy levels. The first beam is deflected into a +1 diffraction order, resulting in an AOD output beam with a frequency greater than that of the respective AOD input beam. The second beam is deflected into a −1 diffraction order so that the AOD output beam has a frequency less than that of the respective AOD input beam. The equal and opposite frequency changes compensate it other so that the sum of the output frequencies remains resonant with the transition of interest. Thus, AODs can be used to steer laser beams to address individual atoms of an atom array.
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公开(公告)号：US20220262609A1
公开(公告)日：2022-08-18
申请号：US17667433
申请日：2022-02-08
Applicant: ColdQuanta, Inc.
Inventor： Steven Michael Hughes
IPC: H01J41/12
Abstract: A vacuum cell is described. The vacuum cell includes an inner chamber, a buffer channel, and a buffer ion pump. The buffer channel is fluidically isolated from the inner chamber and fluidically isolated from an ambient external to the vacuum cell. The buffer ion pump is fluidically coupled to the buffer channel and fluidically isolated from the ambient and the inner chamber.
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公开(公告)号：US11415614B2
公开(公告)日：2022-08-16
申请号：US17216883
申请日：2021-03-30
Applicant: ColdQuanta, Inc.
Inventor： Evan Salim , Dana Zachary Anderson , Jayson Denney , Farhad Majdeteimouri
Abstract: A 3D microwave sensor includes a cloud of particles, e.g., rubidium 87 atoms. A laser system produces: a first probe beam directed through the particle cloud along a first path; a second probe beam directed through the particle cloud along a second path that intersects the first path to define a Rydberg intersection; a first coupling beam that counterpropagates with respect to the first probe beam along the first path; and a second coupling beam that counterpropagates with respect to the second probe beam along the second path. A spectrum analyzer characterizes the microwave field strength at the Rydberg intersection. The laser beams can be steered to move the Rydberg intersection within the particle cloud to compile a microwave field strength distribution in the particle cloud.
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Patent Agency Ranking
公开(公告)号：US20220237612A1
公开(公告)日：2022-07-28
申请号：US17722350
申请日：2022-04-17
Applicant: ColdQuanta, Inc.
Inventor： Dana Zachary ANDERSON , Seth Charles CALIGA , Farhad MAJDETEIMOURI
Abstract: A BEC-station and a cloud-based server cooperate to provide Bose-Einstein condensates as a service (BECaaS). The BEC station serves as a system for implementing “recipes” for producing, manipulating, and/or using cold (
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公开(公告)号：US20220237497A1
公开(公告)日：2022-07-28
申请号：US17722351
申请日：2022-04-17
Applicant: ColdQuanta, Inc.
Inventor： Dana Zachary ANDERSON , Seth Charles CALIGA , Farhad MAJDETEIMOURI
Abstract: A shaken-lattice station and a cloud-based server cooperate to provide shaken lattices as a service (SLaaS). The shaken-lattice station serves as a system for implementing “recipes” for creating and using shaking functions to be applied to light used to trap quantum particles. The cloud-based server acts as an interface between the shaken-lattice station (or stations) and authorized users of account holders. To this end the server hosts an account manager and a session manager. The account manager manages accounts and associated account-based and user-specific permissions that define what actions any given authorized user for an account may perform with respect to a shaken-lattice station. The session manager controls (e.g., in real-time) interactions between a user and a shaken-lattice station, some interactions allowing a user to select a recipe based on results returned earlier in the same session.
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公开(公告)号：US20220172094A1
公开(公告)日：2022-06-02
申请号：US17509135
申请日：2021-10-25
Applicant: ColdQuanta, Inc.
Inventor： Matthew EBERT , Martin Tom LICHTMAN
Abstract: A quantum register can be read out using under-resolved emissions mapping (e.g., imaging). Regions of the quantum register are illuminated concurrently, one array site per region at a time, typically until all sites of each region have been illuminated. A photodetector system then detects for each region whether or not an EMR emission (e.g., due to fluorescence) has occurred in response to illumination of a respective site in that region. The result of the photo detections is a series of emissions maps, e.g., images. The number of emissions maps in the series corresponds to a number of sites per region, while the number of pixels in each image corresponds to a number of regions. A readout result can be based on a time-multiplexed combination of these emissions maps. The emissions maps are under-resolved since the resolution corresponds to the region size rather than the sizes of individual array sites.
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公开(公告)号：US20220159883A1
公开(公告)日：2022-05-19
申请号：US17307716
申请日：2021-05-04
Applicant: ColdQuanta, Inc.
Inventor： Evan SALIM , Hugo LEON
Abstract: A magnetic-field shield is used to shield a magneto-optical trap (MOT) in an ultra-high vacuum (UHV) cell from magnetic fields generated by an ion pump used to maintain the UHV. The magnetic-field shield includes an enclosure of ferro-magnetic material that acts to capture portions of the magnetic field generated by the ion pump. However, as the distance between the ion pump and the MOT is less than 6 centimeters, enough of the magnetic field escapes through the ferro-magnetic material, and this leakage could impair the MOT. A drive magnet attached to the yoke redirects magnetic flux, that would otherwise leak out of the magnetic-field shield, along a path within the ferro-magnetic enclosure and away from the MOT.
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公开(公告)号：US20220156624A1
公开(公告)日：2022-05-19
申请号：US17221047
申请日：2021-04-02
Applicant: ColdQuanta, Inc.
Inventor： Evan SALIM , Dina GENKINA , Flavio CRUZ , Judith OLSON , Andrew KORTYNA
Abstract: An atomic clock employs hybrid long/short quantum clock frequency regulation wherein each of a series of regulation cycles includes a relatively long (four Ramsey-cycle) combination error signal (CES) cycle and plural relatively short (two Ramsey-cycle) single error signal (SES) cycles. The CES cycles provide for better long-term stability than can be provided using only SES cycles. However, including the SES cycles between CES cycles improves short term stability with negligible diminishment of long-term stability.
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