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公开(公告)号：US20230365404A1
公开(公告)日：2023-11-16
申请号：US17874149
申请日：2022-07-26
申请人： ColdQuanta, Inc.
IPC分类号： B82B3/00
CPC分类号： B82B3/0014 , B82Y40/00
摘要： A process for manufacturing custom optically active quantum-particle cells includes forming a pre-customization assembly and then, in response to receipt of specifications for quantum-particle cells, performing a customization subprocess on the pre-customization assembly to yield custom quantum-particle cells, e.g., vapor cells, vacuum cells, micro-channel cells containing alkali metal or alkaline-earth metal ions or neutral atoms. The customization can include for metasurface structures on cell walls, e.g., to serve as anti-reflection coatings, lenses, etc., and introducing quantum particles (e.g., alkali metal atoms). A cover can be bonded to hermetically seal the assembly, which can then be diced to yield plural separated custom optically active quantum-particle cells.
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公开(公告)号：US11776797B2
公开(公告)日：2023-10-03
申请号：US17667433
申请日：2022-02-08
申请人： ColdQuanta, Inc.
CPC分类号： H01J41/12 , F04B37/04 , F04B37/14 , F04B2015/082
摘要： 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：US20230298880A1
公开(公告)日：2023-09-21
申请号：US18122032
申请日：2023-03-15
申请人： ColdQuanta, Inc.
发明人： Steven Michael Hughes , Clinton Cahall , Steffen Michael Kross , James S. Hale , Hugo Leon , Matthew Barton Jaskot
CPC分类号： H01J49/24 , H01J49/4205
摘要： A vacuum system is described. The vacuum system includes a vacuum cell and an ion trap. The vacuum cell includes walls having an inner surface that form at least a portion of a vacuum chamber. At least a portion of the inner surface has a topography including structures therein. The structures include a getter material. The ion trap is within the vacuum chamber.
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公开(公告)号：US11733655B2
公开(公告)日：2023-08-22
申请号：US17695986
申请日：2022-03-16
申请人： ColdQuanta, Inc.
发明人： Evan Salim , Judith Olson , Andrew Kortyna , Dina Genkina , Flavio Cruz
CPC分类号： G04F5/145 , G01N21/645 , G04F5/14 , H03L7/26 , G01N2021/6471
摘要： A frequency-modulated spectrometry (FMS) output is used to stabilize an atomic clock by serving as an error signal to regulate the clock's oscillator frequency. Rubidium 87 atoms are localized within a hermetically sealed cell using an optical (e.g., magneto-optical) trap. The oscillator output is modulated by a sinusoidal radio frequency signal and the modulated signal is then frequency doubled to provide a modulated 788 nm probe signal. The probe signal excites the atoms, so they emit 775.8 nm fluorescence. A spectral filter is used to block 788 nm scatter from reaching a photodetector, but also blocks 775.8 nm fluorescence with an angle of incidence larger than 8° relative to a perpendicular to the spectral filter. The localized atoms lie within a conical volume defined by the 8° effective angle of incidence so an FMS output with a high signal-to-noise ratio is obtained.
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公开(公告)号：US20230229954A1
公开(公告)日：2023-07-20
申请号：US18098011
申请日：2023-01-17
申请人： ColdQuanta, Inc.
发明人： Daniel C. Cole , Woo Chang Chung
IPC分类号： G06N10/40
CPC分类号： G06N10/40
摘要： While a qubit control system (e.g., a laser system) is in a first configuration, it causes a qubit state (as represented as a point on the surface of a Bloch sphere) of a quantum state carrier (QSC), e.g., an atom, to rotate in a first direction from an initial qubit state to a first configuration qubit state. While the qubit control system is in a second configuration, it causes the QSC state to rotate in a second direction opposite the first direction from the first configuration qubit state to a second configuration qubit state. The second configuration qubit state is read out as a |0〉 or |1〉. Repeating these actions results in a distribution of |0〉s and |1〉s that can be used to determine which of the two configurations results in higher Rabi frequencies. Iterating the above for other pairs of configurations can identify a configuration that delivers the most power to the QSC and thus yields the highest Rabi frequency. This process can be used, for example, to align a laser so that its pulse yields a maximum Rabi frequency for an atom.
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公开(公告)号：US11631023B2
公开(公告)日：2023-04-18
申请号：US16914497
申请日：2020-06-29
申请人： ColdQuanta, Inc.
IPC分类号： G06N10/00 , H04L67/146 , H04L67/306 , G06F21/31 , G09B23/20 , G21K1/00
摘要： A quantum-mechanics station (Ψ-station) and a cloud-based server cooperate to provide quantum mechanics as a service (ΨaaS) including real-time, exclusive, interactive sessions. The Ψ-station serves as a system for implementing “recipes” for producing, manipulating, and/or using quantum-state carriers, e.g., rubidium 87 atoms. The cloud-based server acts as an interface between the 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 Ψ-station. The session manager controls (e.g., in real-time) interactions between a user and a Ψ-station, some interactions allowing a user to select a recipe based on wavefunction characterizations returned earlier in the same session.
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公开(公告)号：US20230081451A1
公开(公告)日：2023-03-16
申请号：US17734706
申请日：2022-05-02
申请人： ColdQuanta, Inc.
摘要： A microwave sensor determines an electric-field strength of a microwave field populated by quantum particles in an ultra-high vacuum (UHV) cell. A probe laser beam and a coupling laser beam are directed into the UHV cell so that they are generally orthogonal to each other and intersect to define a “Rydberg” intersection, so-called as the quantum particles within the Rydberg intersection transition to a pair of Rydberg states. The frequency of the probe laser beam is swept so that a frequency spectrum of the probe laser beam can be captured. The frequency spectrum is analyzed to determine a frequency difference between Autler-Townes peaks. The electric-field strength of the microwave field within the Rydberg intersection is then determined based on this frequency difference.
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公开(公告)号：US20220262929A1
公开(公告)日：2022-08-18
申请号：US17493155
申请日：2021-10-04
申请人： ColdQuanta, Inc.
摘要： A pulsed-laser applies short (e.g., less than 10 pico-seconds) pulses to modify quantum particle (e.g., alkali-metal and alkaline-earth-metal atoms) ultra-high vacuum (UHV) cells to bond, ablate, and/or chemically modify vacuum-facing surfaces of the cell. The pulses are generated outside the cell and are transmitted through a vacuum-boundary wall. In one example, one vacuum-boundary wall is first contact bonded to other vacuum boundary walls at a relatively low temperature (below 200° C.), sufficient to form a temporary hermetic seal. Pulsed laser bonding is used to reinforce the contact bonds, correcting defects and generally increasing the robustness of the seal. The pulses provide high peak power to ensure strong bonds, but low total heat so as to avoid heat damage to nearby cell components and to limit quantum-particle sorbtion to and into cell walls.
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公开(公告)号：US20220172855A1
公开(公告)日：2022-06-02
申请号：US17506860
申请日：2021-10-21
申请人： ColdQuanta, Inc.
发明人： Matthew EBERT , Martin Tom LICHTMAN
摘要： 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：US11293551B2
公开(公告)日：2022-04-05
申请号：US16544834
申请日：2019-08-19
申请人： ColdQuanta, Inc.
IPC分类号： F16J15/10
摘要： A monolithic break-seal includes a membrane that separates an outer ring from an inner ring. The inner ring is bonded to a vacuum cell and the outer ring is bonded to a vacuum interface. To protect against unintentional breakage of the membrane, a surface of the outer ring not bonded to the vacuum interface contacts the vacuum cell. An external vacuum system evacuates the vacuum cell through an aperture of the break-seal. Once a target vacuum level is reached for the vacuum cell, a cap is bonded to the inner ring, blocking the aperture and hermetically sealing the vacuum cell. The membrane is broken so that the hermetically sealed vacuum cell can be separated from the vacuum interface to which the outer ring remains bonded.
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