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Protocol for Control-NOT and Control-PHASE gate between a Quantum Memory and Gottesman-Kitaev-Preskill Encoded Photonic Qubit
This innovation is a proposed interface between Gottesman-Kitaev-Preskill (GKP) qubit states (which are optimal for qubit transmission in quantum computing) and quantum memories (which can support long coherence and storage times) based on a cavity-mediated controlled displacement gate. The inventors prescribe optimal regimes of operation for high-quality...
Published: 9/5/2024
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Inventor(s): Prajit Dhara, Saikat Guha, Liang Jiang
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Engineering & Physical Sciences
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Measurement-Based Quantum Computing as a Tangram Puzzle
This invention is a game developed to teach Measurement-Based Quantum Computing (MBQC) to a wide audience ranging from high school students to quantum computing researchers via a Tangram puzzle with a modified set of rules played on an applet. The rules are stated in simple terms with no reference to quantum computing. Players must place polyominos...
Published: 7/10/2024
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Inventor(s): Ashlesha Patil, Saikat Guha, Don Towsley
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Software & Information Technology > Education & Training, Technology Classifications > Creative Works
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Zero-Added-Loss Entangled Photon Multiplexing Source
This technology is a scheme for optical entanglement distribution in quantum networks based on a quasi-deterministic entangled photon pair source. By combining heralded photonic Bell pair generation with spectral mode conversion to interface with quantum memories, the scheme eliminates switching losses due to multiplexing.
Based on numerical analyses,...
Published: 4/23/2024
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Inventor(s): Saikat Guha, Prajit Dhara, Dirk Englund, Kevin Chen
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Imaging & Optics > Sensors and Detection
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Gaussian Boson Sampling to Accelerate NP-Complete Vertex-Minor Graph Classification
This invention is a new classical algorithm used to classify if two graphs are vertex-minor equivalent or not, an NP complete problem which improves on prior results using currently published well-known classical algorithms. The inventors also introduce a new classical algorithm based on graph spectra that outperforms other classical algorithms and...
Published: 11/7/2023
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Inventor(s): Mushkan Sureka, Saikat Guha
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Engineering & Physical Sciences > Quantum
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Quantum Computing using an Atomic-Emitter Array and a Volumetric Mode Sorter (QAMS)
This invention is a completely photonic, utility-scale quantum computer that delivers a superior level of fault tolerance over existing state of the art quantum computers.
Background:
Quantum computing is a promising field because quantum computers can perform complex operations efficiently and solve problems that are difficult for classical computers...
Published: 4/24/2024
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Inventor(s): Saikat Guha, Ashlesha Patil, Michael Grace, Dirk Englund
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Quantum, Technology Classifications > Engineering & Physical Sciences > Photonics
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Quantum Message-Passing Receivers for Quantum-Optimal Laser Communications
This technology is the first fully structured design of an optical joint-detection receiver that can attain the quantum limit of laser communication. The proposed receiver circuit provides an alternative proposal for a quantum supremacy experiment, targeted at a specific application that can potentially be implemented on a small, special-purpose, photonic...
Published: 4/3/2023
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Inventor(s): Narayanan Rengaswamy, Kaushik Seshadreesan, Saikat Guha, Henry Pfister
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Engineering & Physical Sciences > Quantum
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Receiver Design for Entanglement-Assisted Classical Communication
This technology is a new type of receiver for entanglement-assisted classical communication, that is ideal for applications with noise or weak signal strength, and improves communication rates over existing solutions.
Background:
Entanglement-assisted classical communication describes the process by which the properties of quantum entanglement (such...
Published: 11/19/2024
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Inventor(s): Saikat Guha, Ali Cox, Quntao Zhuang, Christos Gagatsos, Boulat Bash
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices, Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Optical, Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Wireless
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Heralded-Multiplexed High-Efficiency Cascaded Source of Dual-Rail Polarization-Entangled Photon Pairs using Spontaneous Parametric Down Conversion
This technology is a high-efficiency, high-fidelity method of generating pairs of polarization-entangled photonic qubits. The use of a cascaded source that performs a linear-optical entanglement swap between two spontaneous parametric down conversion (SPDC) sources, to generate a heralded photonic entangled state that has a higher fidelity compared...
Published: 4/3/2023
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Inventor(s): Saikat Guha, Prajit Dhara
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics
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Non-Gaussian Photonic State Engineering with the Quantum Frequency Processor
This technology is a means of generating non-Gaussian quantum states in light for use in quantum computing.
Non-Gaussian quantum states are a subset of quantum states that enable operations that would not be possible with Gaussian states in quantum computers. As a result, they bring a lot of potential value to quantum computing. However, non-Gaussian...
Published: 4/3/2023
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Inventor(s): Saikat Guha, Christos Gagatsos, Joseph Lukens
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Telecommunications > Electro-Optic Devices
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Symmetric Logarithmic Derivative Eigen-projection Adaptive Algorithm for Super-Resolution Imaging
This technology describes an eigen-projection adaptive algorithm that can be used for super-resolution imaging in a variety of contexts, including life-sciences microscopy or astronomy.
Background:
Traditional advanced microscopy or telescopy uses several different measuring methods to estimate brightness, deduce position, and discriminate between...
Published: 6/27/2024
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Inventor(s): Kwan Kit Lee, Michael Grace, Amit Ashok, Saikat Guha
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics
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