Výsledky vyhledávání - "Quantum algorithms & computation"
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Theory for Equivariant Quantum Neural Networks
ISSN: 2691-3399, 2691-3399Vydáno: United States American Physical Society (APS) 06.05.2024Vydáno v PRX quantum (06.05.2024)“…Quantum neural network architectures that have little to no inductive biases are known to face trainability and generalization issues. Inspired by a similar…”
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Scalable Circuits for Preparing Ground States on Digital Quantum Computers: The Schwinger Model Vacuum on 100 Qubits
ISSN: 2691-3399, 2691-3399Vydáno: United States American Physical Society (APS) 18.04.2024Vydáno v PRX quantum (18.04.2024)“…The vacuum of the lattice Schwinger model is prepared on up to 100 qubits of IBM’s Eagle-processor quantum computers. A new algorithm to prepare the ground…”
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Quantum error thresholds for gauge-redundant digitizations of lattice field theories
ISSN: 2470-0010, 2470-0029Vydáno: United States American Physical Society (APS) 23.09.2024Vydáno v Physical review. D (23.09.2024)“…In the quantum simulation of lattice gauge theories, gauge symmetry can be either fixed or encoded as a redundancy of the Hilbert space. While gauge-fixing…”
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Collective neutrino oscillations on a quantum computer with hybrid quantum-classical algorithm
ISSN: 2470-0010, 2470-0029Vydáno: United States American Physical Society (APS) 27.10.2023Vydáno v Physical review. D (27.10.2023)“…We simulate the time evolution of collective neutrino oscillations in two-flavor settings on a quantum computer. We explore the generalization of…”
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Qudit Dynamical Decoupling on a Superconducting Quantum Processor
ISSN: 0031-9007, 1079-7114, 1079-7114Vydáno: United States American Physical Society (APS) 07.02.2025Vydáno v Physical review letters (07.02.2025)“…Multilevel qudit systems are increasingly being explored as alternatives to traditional qubit systems due to their denser information storage and processing…”
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Radiative processes on a quantum computer
ISSN: 2469-9985, 2469-9993Vydáno: United States American Physical Society (APS) 07.03.2025Vydáno v Physical review. C (07.03.2025)“…Radiative processes, where a photon/neutrino is emitted as a result of a collision or decay of a particle, play a central role in atomic, nuclear, and particle…”
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Criticality of quantum energy teleportation at phase transition points in quantum field theory
ISSN: 2470-0010, 2470-0029Vydáno: United States American Physical Society (APS) 17.04.2023Vydáno v Physical review. D (17.04.2023)“…Quantum field theory can be a new medium for communication through quantum energy teleportation. We perform a demonstration of quantum energy teleportation…”
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Robust measurements of n-point correlation functions of driven-dissipative quantum systems on a digital quantum computer
ISSN: 0031-9007, 1079-7114, 1079-7114Vydáno: United States American Physical Society (APS) 08.03.2024Vydáno v Physical review letters (08.03.2024)“…We propose and demonstrate a unified hierarchical method to measure n -point correlation functions that can be applied to driven, dissipative, or otherwise…”
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Simplified projection on total spin zero for state preparation on quantum computers
ISSN: 2469-9985, 2469-9993Vydáno: United States American Physical Society (APS) 24.12.2024Vydáno v Physical review. C (24.12.2024)“…Here, we introduce a simple algorithm for projecting on J = 0 states of a many-body system by performing a series of rotations to remove states with angular…”
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Gate-Based Quantum Simulation of Gaussian Bosonic Circuits on Exponentially Many Modes
ISSN: 0031-9007, 1079-7114, 1079-7114Vydáno: United States American Physical Society (APS) 21.02.2025Vydáno v Physical review letters (21.02.2025)“…We introduce a framework for simulating, on an ( n + 1 )-qubit quantum computer, the action of a Gaussian bosonic (GB) circuit on a state over 2 n modes…”
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Projection algorithm for state preparation on quantum computers
ISSN: 2469-9985, 2469-9993Vydáno: United States American Physical Society (APS) 29.09.2023Vydáno v Physical review. C (29.09.2023)“…We present an efficient method to prepare states of a many-body system on quantum hardware, first isolating individual quantum numbers and then using time…”
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Strategies for quantum-optimized construction of interpolating operators in classical simulations of lattice quantum field theories
ISSN: 2470-0010, 2470-0029Vydáno: United States American Physical Society (APS) 20.03.2023Vydáno v Physical review. D (20.03.2023)“…It has recently been argued that noisy intermediate-scale quantum computers may be used to optimize interpolating operator constructions for lattice quantum…”
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Enhancing quantum utility: Simulating large-scale quantum spin chains on superconducting quantum computers
ISSN: 2643-1564, 2643-1564Vydáno: United States American Physical Society (APS) 25.07.2024Vydáno v Physical review research (25.07.2024)“…We present the quantum simulation of the frustrated quantum spin- 1 2 antiferromagnetic Heisenberg spin chain with competing nearest-neighbor ( J 1 ) and…”
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Variational quantum algorithm for ergotropy estimation in quantum many-body batteries
ISSN: 2643-1564, 2643-1564Vydáno: American Physical Society 11.01.2024Vydáno v Physical review research (11.01.2024)“…Quantum batteries are predicted to have the potential to outperform their classical counterparts and are therefore an important element in the development of…”
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End-to-end protocol for high-quality quantum approximate optimization algorithm parameters with few shots
ISSN: 2643-1564, 2643-1564Vydáno: United States American Physical Society (APS) 21.08.2025Vydáno v Physical review research (21.08.2025)“…The quantum approximate optimization algorithm (QAOA) is a quantum heuristic for combinatorial optimization that has been demonstrated to scale better than…”
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Effects of noise on the overparametrization of quantum neural networks
ISSN: 2643-1564, 2643-1564Vydáno: United States American Physical Society (APS) 18.03.2024Vydáno v Physical review research (18.03.2024)“…Overparametrization is one of the most surprising and notorious phenomena in machine learning. Recently, there have been several efforts to study if, and how,…”
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Computational Complexity of Unitary and State Design Properties
ISSN: 2691-3399, 2691-3399Vydáno: American Physical Society 09.09.2025Vydáno v PRX quantum (09.09.2025)“…We investigate unitary and state t -designs from a computational complexity perspective. First, we address the problems of computing frame potentials that…”
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Exact block encoding of imaginary time evolution with universal quantum neural networks
ISSN: 2643-1564, 2643-1564Vydáno: United States American Physical Society (APS) 24.03.2025Vydáno v Physical review research (24.03.2025)“…We develop a constructive approach to generate quantum neural networks capable of representing the exact thermal states of all many-body qubit Hamiltonians…”
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Feedback-based quantum algorithm inspired by counterdiabatic driving
ISSN: 2643-1564, 2643-1564Vydáno: United States American Physical Society (APS) 01.10.2024Vydáno v Physical review research (01.10.2024)“…In recent quantum algorithmic developments, a feedback-based approach has shown promise for preparing quantum many-body system ground states and solving…”
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