-
公开(公告)号：US12235304B2
公开(公告)日：2025-02-25
申请号：US17990357
申请日：2022-11-18
Applicant: ColdQuanta, Inc.
Inventor： Shane A. Verploegh , Eric Magnuson Bottomley
IPC: G01R29/08
Abstract: A quantum-sensing radiofrequency (RF) receiver system includes a multi-channel single-cell detection cell containing rubidium 87 atoms. Each channel is tuned to a respective RF frequency by applying electric potentials to indium-titanium-oxide (ITO) electrodes formed on detection cell walls. The channels are tuned to different RF frequencies to provide a relatively wideband detection in the aggregate across plural channels. A laser system provides plural laser beams, including a respective probe beam, to each channel to excite the 87Ru atoms therealong to a Rydberg state. Each channel can be read out by tracking absorption for each of the plural probe beams of the multi-channel system.
-
公开(公告)号：US20240371967A1
公开(公告)日：2024-11-07
申请号：US18197269
申请日：2023-05-15
Inventor： Dana Zachary Anderson , Brad Anthony Dinardo
IPC: H01L29/66 , G06N10/00 , H01L29/15 , H01L29/775 , H10N99/00
Abstract: A qubit array reparation system includes a reservoir of ultra-cold particle, a detector that determines whether or not qubit sites of a qubit array include respective qubit particles, and a transport system for transporting an ultra-cold particle to a first qubit array site that has been determined by the probe system to not include a qubit particle so that the ultra-cold particle can serve as a qubit particle for the first qubit array site. A qubit array reparation process includes maintaining a reservoir of ultra-cold particles, determining whether or not qubit-array sites contain respective qubit particles, each qubit particle having a respective superposition state, and, in response to a determination that a first qubit site does not contain a respective qubit particle, transporting an ultracold particle to the first qubit site to serve as a qubit particle contained by the first qubit site.
-
公开(公告)号：US20240272262A1
公开(公告)日：2024-08-15
申请号：US18636077
申请日：2024-04-15
Applicant: ColdQuanta, Inc.
Inventor： Dana Zachary Anderson , Haoquan Fan , Ying-Ju Wang , Eric Magnuson Bottomley
IPC: G01S3/46
CPC classification number: G01S3/46
Abstract: A probe laser beam causes molecules to transition from a ground state to an excited state. A control laser beam causes molecules in the excited state to transition to a laser-induced Rydberg state. Microwave lenses convert a microwave wavefront into respective microwave beams. The microwave beams are counter-propagated through molecules so as to create a microwave interference pattern of alternating maxima and minima. The microwave interference pattern is imposed on the probe beam as a probe transmission pattern. The propagation direction of the microwave wavefront can be determined from the translational position of the probe transmission pattern; the intensity of the microwave wavefront can be determined by the intensity difference between the minima and maxima of the probe transmission pattern.
-
公开(公告)号：US20240211788A1
公开(公告)日：2024-06-27
申请号：US18391190
申请日：2023-12-20
Applicant: ColdQuanta, Inc.
Inventor： Pranav Gokhale , Michael A. Perlin , Palash Goiporia , Frederic T. Chong , William Clark
IPC: G06N10/20
CPC classification number: G06N10/20
Abstract: A quantum-hardened power grid includes grid nodes (e.g., power plants, renewable energy sources and substations) and transmission lines connecting the grid nodes. The grid nodes include stable quantum clocks that permit the power grid to continue operation in the event of downtime for a GPS or other external synchronization reference. Operation sans an external reference can be extended by synchronizing atomic clocks across grid nodes using a quantum network. The atomic clocks can be used with quantum sensors and quantum computers to provide grid state estimates, e.g., using quantum tomography “at the edge”. In addition, these quantum devices can be used to compute responses to grid faults and cyberattacks.
-
公开(公告)号：US20240146319A1
公开(公告)日：2024-05-02
申请号：US18386232
申请日：2023-11-01
Applicant: ColdQuanta, Inc.
Inventor： Judith Olson
Abstract: A method for controlling an atomic clock is described. The method includes receiving, at a processor, a request including an operational mode of multiple operational modes for the atomic clock. The atomic clock includes a local oscillator, a vapor cell, a detector, and a local oscillator controller. The vapor cell includes atoms and receives from the local oscillator a signal having a frequency. The signal causes transitions of the atoms between atomic energy states. The detector detects the transitions and provides to the local oscillator controller an error signal based on the transitions. The error signal indicates a difference between the frequency and a target frequency. The local oscillator controller controls the local oscillator based on the error signal. The processor determines, based on the operational mode, values for control parameters for the atomic clock. The atomic clock is controlled using the values of the parameters.
-
Patent Agency Ranking
公开(公告)号：US11880171B2
公开(公告)日：2024-01-23
申请号：US17695979
申请日：2022-03-16
Applicant: ColdQuanta, Inc.
Inventor： Evan Salim , Judith Olson , Andrew Kortyna , Dina Genkina , Flavio Cruz
CPC classification number: G04F5/145 , G01N21/645 , G04F5/14 , H03L7/26 , G01N2021/6471
Abstract: A fluorescence detection process begins by localizing rubidium 87 atoms within an optical (all-optical or magneto-optical) trap so that at least most of the atoms in the trap are within a cone defined by an effective angle, e.g., 8°, of a spectral filter. Within the effective angle of incidence, the filter effectively rejects (reflects or absorbs) 778 nanometer (nm) fluorescence and effectively transmits 775.8 nm fluorescence. Any 775.8 nm fluorescence arrive outside the effective angle of incidence. Thus, using an optical trap to localize the atoms within the cone enhances the signal-to-noise ratio of the fluorescence transmitted through the spectral filter and arriving a photomultiplier or other photodetector, resulting fluorescence detection signal with an enhanced S/N.
-
公开(公告)号：US20230260670A1
公开(公告)日：2023-08-17
申请号：US17959979
申请日：2022-10-04
Applicant: ColdQuanta, Inc.
IPC: G21K1/00
CPC classification number: G21K1/00
Abstract: A drop-in multi-optics module for a quantum-particle (e.g., rubidium, cesium) cell provides for more convenient and cost-effective manufacture of such cells (including vacuum cells, cold/ultra-cold matter cells, vapor cells, and channel cells). In a 3D printing approach, a model of a frame augmented by buffer material is 3D printed. The buffer material is removed from the augmented frame to achieved desired dimensions with greater precision than could be achieved by 3D printing the frame directly. Optical and, in some cases, other components are attached to the frame to realize the multi-optics drop-in module. Alternatively, the module can be formed by cutting out portions of a metal sheet and then folding the resulting 2D preform.
-
公开(公告)号：US11699738B2
公开(公告)日：2023-07-11
申请号：US17326371
申请日：2021-05-21
Inventor： Dana Zachary Anderson , Brad Anthony Dinardo
CPC classification number: H01L29/66439 , G06N10/00 , H01L29/15 , H01L29/66977 , H01L29/775 , H10N99/05
Abstract: A qubit array reparation system includes a reservoir of ultra-cold particle, a detector that determines whether or not qubit sites of a qubit array include respective qubit particles, and a transport system for transporting an ultra-cold particle to a first qubit array site that has been determined by the probe system to not include a qubit particle so that the ultra-cold particle can serve as a qubit particle for the first qubit array site. A qubit array reparation process includes maintaining a reservoir of ultra-cold particles, determining whether or not qubit-array sites contain respective qubit particles, each qubit particle having a respective superposition state, and, in response to a determination that a first qubit site does not contain a respective qubit particle, transporting an ultracold particle to the first qubit site to serve as a qubit particle contained by the first qubit site.
-
公开(公告)号：US11687042B2
公开(公告)日：2023-06-27
申请号：US17695986
申请日：2022-03-16
Applicant: ColdQuanta, Inc.
Inventor： Evan Salim , Judith Olson , Andrew Kortyna , Dina Genkina , Flavio Cruz
CPC classification number: G04F5/145 , G01N21/645 , G04F5/14 , H03L7/26 , G01N2021/6471
Abstract: 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.
-
公开(公告)号：US11630143B2
公开(公告)日：2023-04-18
申请号：US17734706
申请日：2022-05-02
Applicant: ColdQuanta, Inc.
Inventor： Evan Salim , Dana Zachary Anderson , Jayson Denney , Farhad Majdeteimouri
Abstract: 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.
-
-
-
-
-
-
-
-
-
Search Results
132
records
(took 0.024 seconds)
