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Displaying 51 - 75 of 9846

A fault-tolerant neutral-atom architecture for universal quantum computation

November 10, 2025
Author(s)
Dolev Bluvstein, Alexandra Geim, Sophie Li, Simon Evered, J. Pablo Bonilla Ataides, Gefen Baranes, Andi Gu, Tom Manovitz, Muqing Xu, Marcin Kalinowski, Shayan Majidy, Christian Kokail, Nishad Maskara, Elias C Trapp, Luke Stewart, Simon Hollerith, Hengyun Zhou, Michael Gullans, Susanne Yelin, Markus Greiner, Vladan Vuletic, Madelyn Cain, Mikhail Lukin
… A fault-tolerant neutral-atom architecture for universal quantum computation …

Unification of universal and non-universal topological quantum computation

July 26, 2011
Author(s)
Haitan Xu, Jacob Taylor
… Approaches for implementing primitives for quantum computation using Read-Reyazi anyons remain … Quantum computation, Read-Reyazi anyons, Topological gates, … Unification of universal and non-universal topological quantum computation …

Classical simulation of Yang-Baxter gates

November 3, 2014
Author(s)
Stephen P. Jordan, Gorjan Alagic, Aniruddha Bapat
… group Bn for every n ≥ 2. If we view such an operator as a quantum-computational gate, then topological braiding corresponds to a quantum circuit. A basic question is when such a representation affords universal quantum computation. In this work, we show how to classically …

Fault-tolerant hyperbolic Floquet quantum error correcting codes

September 5, 2025
Author(s)
Ali Fahimniya, Hossein Dehghani, Kishor Bharti, Sheryl Mathew, Alicia Kollar, Alexey Gorshkov, Michael Gullans
… A central goal in quantum error correction is to reduce the overhead of fault-tolerant quantum computing by increasing noise thresholds and reducing … this goal based on a family of dynamically generated quantum error correcting codes that we call "hyperbolic …

Report on Post-Quantum Cryptography

April 28, 2016
Author(s)
Lidong Chen, Stephen P. Jordan, Yi-Kai Liu, Dustin Moody, Rene C. Peralta, Ray A. Perlner, Daniel C. Smith-Tone
… years, there has been a substantial amount of research on quantum computers - machines that exploit quantum mechanical phenomena to solve mathematical problems … or intractable for conventional computers. If large-scale quantum computers are ever built, they will be able to break …

Trapped Ions, Entanglement, and Quantum Computing

May 1, 1998
Author(s)
C J. Myatt, B E. King, D Kielpinski, Dietrich Leibfried, C S. Turchette, Chris S. Wood, Wayne M. Itano, C Monroe, David J. Wineland
… ion traps, laser cooling and trapping, quantum computing, quantum logic … Trapped Ions, Entanglement, and Quantum Computing …

Confidence-Interval Construction with Non-I.I.D. Spot-Checking Trials & its Application in Quantum Information

June 22, 2023
Author(s)
Emanuel Knill, Akshay Seshadri, Yanbao Zhang
… random variables and can be applied for certifying ongoing quantum information tasks … Quantum 2.0 2023 … Quantum information, hypothesis testing, parameter estimation … Optica Quantum 2.0 Conference and Exhibition, Quantum 2.0 2023 … with Non-I.I.D. Spot-Checking Trials & its Application in Quantum Information …

Tight Bounds on the Convergence of Noisy Random Circuits to the Uniform Distribution

December 16, 2022
Author(s)
Michael Gullans, Abhinav Deshpande, Bill Fefferman, Alexey Gorshkov, Pradeep Niroula, Oles Shtanko
… for hardness proofs of sampling schemes that aim to show a quantum computational advantage over classical computation. … to prove an often-conjectured claim in the literature on quantum computational advantage, contrary to what was thought … PRX Quantum … Quantum information science, noisy quantum devices, …

Quantum-Computer Architecture Using Nonlocal Interactions

May 1, 2003
Author(s)
G K. Brennen, D Song, Carl J. Williams
… Many protocols for quantum information processing use a control sequence or … qubits are restricted to nearest neighbor interactions and quantum wires between distant qubits do not exist. Because of … with scalability. In this paper we describe a generalized quantum architecture that provides efficient nonlocal …

Quantum Algorithms for Quantum Field Theories

June 1, 2012
Author(s)
Stephen P. Jordan, Keith S. Lee, John Preskill
… Quantum field theory reconciles quantum mechanics and special relativity, and plays a central role in many areas of physics. We develop a quantum algorithm to compute relativistic scattering … quantum algorithm, simulation, quantum field theory, phi-fourth, scattering, quantum computer …

Adiabatic optimization without local minima

March 1, 2015
Author(s)
Stephen P. Jordan, Michael Jarret
… works have investigated the circumstances under which quantum adiabatic optimization algorithms can tunnel out of … Quantum Information & Computation … quantum algorithm, adiabatic, computational complexity …

QCMA with One-sided Error Equals QCMA with Two-sided Error

November 30, 2011
Author(s)
Stephen P. Jordan, Daniel Nagaj
… bitstring, or proof, that can be efficiently verified by a quantum computer. The verifier is allowed a small probability … thus QCMA with one-sided error is equal to QCMA. This is a quantum analogue to the result of Zachos and Furer, that the … error is the same as MA with two-sided error. Because a quantum oracle separating QCMA and QCMA with one sided error …

Progress on a portable polarization-entangled photon source & receiver for quantum network metrology

June 13, 2022
Author(s)
Anouar Rahmouni, Thomas Gerrits, Oliver T. Slattery
… portable/rack-mounted, robust, and reliable tools for a quantum network testbed. We report our progress on the … Quantum 2.0 Conference and Exhibition. … polarization-entangled photon source, quantum network metrology … OSA Quantum 2.0 Conference … polarization-entangled photon source & receiver for quantum network metrology …

Liquid state NMR simulations of quantum many-body problems

January 1, 2005
Author(s)
C. Negrevergne, Rolando Somma, Gerardo Ortiz, Emanuel Knill, R. Laflamme
… Recently developed quantum algorithms suggest that in principle, quantum computers (QCs) can solve problems such as simulation … As a small- scale demonstration of this capability of quantum computers, we simulate a simple many-fermion problem, … Fano-Anderson model, liquid state NMR quantum computing, quantum computing, quantum physics …

Randomized Benchmarking of Quantum Gates

January 1, 2007
Author(s)
Emanuel Knill, D. Leibfried, R. Reichle, J. Britton, R. B. Blakestad, J. D. Jost, C. Langer, R Ozeri, Signe Seidelin, David J. Wineland
… A key requirement for scalable quantum computing is that elementary quantum gates can be implemented with sufficiently low error. … the fact that desirable error-probabilities for scalable quantum computing are of the order of 0.0001. Experimentally … ion traps, quantum computing, quantum errors., quantum gates …

Bell Sampling from Quantum Circuits

July 8, 2024
Author(s)
Dominik Hangleiter, Michael Gullans
… A central challenge in the verification of quantum computers is benchmarking their performance as a … capabilities. In this work, we find a model of quantum computation, Bell sampling, that can be used for both … sampling, we measure two copies of a state prepared by a quantum circuit in the transversal Bell basis. We show that …

Improving Quantum Clocks via Semidefinite Programming

July 26, 2012
Author(s)
Michael J. Mullan, Emanuel H. Knill
… The accuracies of modern quantum logic clocks have surpassed those of standard atomic … is based on the semidefinite programming formulation of quantum query complexity, a method first developed in the … Quantum Information and Computation Journal … quantum clock, adversary method, semidefinite programming, …

Liquid State NMR as a Test-bed for Developing Quantum Control Methods

July 15, 2008
Author(s)
C. A. Ryan, C. Negrevergne, M. Laforest, Emanuel Knill, R. Laflamme
… Quantum mechanics has been successfully describing … it has only been much more recently that the idea of using quantum mechanical evolution to process information was … way we view the complexity of information processing, and quantum information processing (QIP) devices may be able to …

Securing Tomorrow's Information through Post-Quantum Cryptography

February 27, 2018
Author(s)
Dustin Moody, Larry Feldman, Gregory A. Witte
… years, there has been a substantial amount of research on quantum computers - machines that exploit quantum mechanical phenomena to solve mathematical problems … or intractable for conventional computers. If large-scale quantum computers are ever built, they will compromise the …

A Classification of Differential Invariants for Multivariate Post-Quantum Cryptosystems

June 21, 2013
Author(s)
Ray A. Perlner, Daniel C. Smith-Tone
… (MPKC) has become one of a few options for security in the quantum model of computing. Though a few multivariate systems … 5th International Conference on Post-Quantum Cryptography (PQCrypto 2013) … Post-Quantum Cryptography (Lecture Notes in Computer Science) … of Differential Invariants for Multivariate Post-Quantum Cryptosystems …

Measurement Challenges for Scaling Superconductor-based Quantum Computers

June 23, 2022
Author(s)
Pete Hopkins, Manuel Castellanos Beltran, John Biesecker, Paul Dresselhaus, Anna Fox, Logan Howe, David Olaya, Adam Sirois, Dylan Williams, Samuel P. Benz, Alirio De Jesus Soares Boaventura, Justus Brevik
… Measurement Challenges for Scaling Superconductor-based Quantum Computers …
Displaying 51 - 75 of 9846
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