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Search Publications

NIST Authors in Bold

Displaying 1 - 25 of 9846

Hybrid quantum edge computing network

October 4, 2022
Author(s)
Lijun Ma, Leah Ding
… Edge computing network and quantum network are two emerging … are deployed at the network edge close to data sources. Quantum network supports distributed quantum computing, which … SPIE Quantum Communications and Quantum Imaging XX … Edge computing network, Quantum computing, Quantum network. …

Quantum Computing with Very Noisy Devices

February 13, 2007
Author(s)
Emanuel H. Knill
… This lecture was presented at the Workshop on Trapped Ion Quantum Computing hosted by NIST, February 21 - 24, 2006. It … the basic principles of fault-tolerant architectures for quantum computing, why we should be concerned with the … Workshop on Trapped Ion Quantum Computing hosted by NIST …

Quantum Computing and Communication

June 28, 2002
Author(s)
Paul E. Black, David R. Kuhn, Carl J. Williams
… practical problems remain to be solved. Yet the theory of quantum computing has advanced significantly in the past … quantum computing, error correcting codes, entanglement, … Quantum Computing and Communication …

BQP-completeness of Scattering in Scalar Quantum Field Theory

September 1, 2014
Author(s)
Stephen P. Jordan, Keith S. Lee, John Preskill
… Recent work has shown that quantum computers can in polynomial time compute scattering probabilities in massive quantum field theories. One can translate this task into a … any problem that can be solved in polynomial time by a quantum computer. Hence, these scattering probabilities …

Modeling Quantum Information Systems

August 24, 2004
Author(s)
Paul E. Black, Andrew W. Lane
… A simulator for quantum information systems cannot be both general, that is, … in a real system. We illustrate with examples from our quantum computing simulator, QCSim. We model the [3,1} … Quantum Information & Computation … BB84, modeling, quantum computing, quantum simulation, teleportation …

Building Quantum Computers

December 1, 2008
Author(s)
Emanuel H. Knill
… In theory, quantum computers can be used to efficiently factor numbers, … states appeared to be too fragile for implementing large quantum computers. Fortunately, because of theoretical … there are now no fundamental obstacles to realizing quantum computers. However, building quantum computers is …

Building Quantum Computers

January 22, 2013
Author(s)
Emanuel H. Knill
… Abstract: In theory, quantum computers can be used to efficiently factor numbers, … states appeared to be too fragile for implementing large quantum computers. Fortunately, because of theoretical … there are now no fundamental obstacles to realizing quantum computers. However, building quantum computers is …

Entangling Superconducting Qubits over Optical Fiber - Towards Optimization and Implementation

November 22, 2022
Author(s)
Curtis Rau, Akira Kyle, Alexander Kwiatkowski, Will Warfield, Jacob Davidson, Maxime Nurwubusa, John Teufel, Ezad Shojaee, Konrad Lehnert, Tasshi Dennis
… A quantum network linking superconducting quantum computers would enable highly sought-after applications such as distributed quantum computing. Optical photons are the natural way of encoding … IEEE International Conference on Quantum Computing and Engineering - QCE22 …

Smaller Circuits for Arbitrary n-qubit Diagonal Computations

February 25, 2003
Author(s)
Stephen Bullock, I L. Markov
… in applications.Constructing quantum circuits for diagonal computations using standard techniques requires either … Should the computation U be a tensor of diagonal one-qubit computations of the form Rz( a) = te-i a/2|1> … Smaller Circuits for Arbitrary n-qubit Diagonal Computations …

Quantum Computing

January 28, 2010
Author(s)
Emanuel H. Knill
… decoherence, quantum computing, quantum error correction, qubits … Quantum Computing …

Quantum Algorithms for Fermionic Quantum Field Theories

April 28, 2014
Author(s)
Stephen P. Jordan, Keith S. Lee, John Preskill
… previous work on scalar field theories, we develop a quantum algorithm to compute relativistic scattering … Thus, it constitutes further progress towards an efficient quantum algorithm for simulating the Standard Model of … Quantum Information & Computation … quantum algorithm, quantum field theory, fermion …

Surface-Electrode Architecture for Ion-Trap Quantum Information Processing

September 1, 2005
Author(s)
J Chiaverini, Brad R. Blakestad, Joseph W. Britton, John D. Jost, C. Langer, Dietrich G. Leibfried, R Ozeri, David J. Wineland
… may be very desirable for recent proposals for large-scale quantum computation based on individual trapped ions. … Quantum Information and Computation … atom trapping and cooling, microfabrication, quantum algorithms, quantum computation, quantum information processing, quantum …

Faster quantum algorithm to simulate Fermionic quantum field theory

July 1, 2018
Author(s)
Ali Hamed Moosavian, Stephen P. Jordan
… In quantum algorithms discovered so far for simulating scattering processes in quantum field theories, state preparation is the slowest … particle states to use in simulation of Fermionic Quantum Field Theory (QFT) on a quantum computer, which is … Quantum Information & Computation …

Quantum Computing With Realistically Noisy Devices

March 3, 2005
Author(s)
Emanuel H. Knill
… problems. One of the main problems of experimental quantum computing is to preserve fragile quantum states in … fault-tolerance thresholds, fault-tolerant quantum computing, postselected quantum computing, quantum computing, quantum … Quantum Computing With Realistically Noisy Devices …

Quantum Computing with Very Noisy Devices

March 3, 2005
Author(s)
Emanuel H. Knill
… problems. One of the main problems of experimental quantum computing is to preserve fragile quantum states in … fault-tolerance thresholds, fault-tolerant quantum computing, postselected quantum computing, quantum computing, quantum … Quantum Computing with Very Noisy Devices …

Transport of Quantum States and Separation of Ions in a Dual RF Ion Trap

September 1, 2002
Author(s)
Mary A. Rowe, A. Ben-Kish, B. DeMarco, D. Leibfried, V. Meyer, James A. Beall, J. Britton, J. Hughes, Wayne M. Itano, Branislav M. Jelenkovic, C. Langer, T. Rosenband, David J. Wineland
… is a building block for a system to engineer arbitrary quantum states of ion ensembles. Specifically, this trap is the unit cell in a strategy for scalable quantum computing using a series of interconnected ion traps. … Quantum Information & Computation … atom trapping and cooling, laser cooling, quantum computation, quantum state engineering, trapped ions …

Eigenpath Traversal by Phase Randomization

September 1, 2009
Author(s)
S. Boixo, Emanuel Knill, Rolando Somma
… A computation in adiabatic quantum computing is achieved by traversing a path of nondegenerate … onto the desired eigenstate, achieving a version of the quantum Zeno effect. For bounded error probability, the … Quantum Information & Computation … Quantum computing, adiabatic quantum computing, decoherence, …

Assessing the Benefits and Risks of Quantum Computers

July 17, 2024
Author(s)
Travis Scholten, Carl Williams, Dustin Moody, Michele Mosca, William Hurley, William J. Zeng, Matthias Troyer, Jay Gambetta
… what is currently known on the potential uses and risks of quantum computers. We discuss how near-term heuristic … algorithms pose the primary threat. This suggests quantum computers may provide economic benefits before they … quantum computers, cryptography, shor's algorithm, quantum …

High-Fidelity Quantum Control Using 9Be+ Ion Crystals in a Penning Trap

August 19, 2009
Author(s)
Michael J. Biercuk, Hermann Uys, Aaron Vandevender, Nobuyasu Shiga, Wayne M. Itano, John J. Bollinger
… use of ion crystals in a Penning trap for experiments in quantum information. Macroscopic Penning traps allow for the … million atomic ions whose internal states may be used in quantum information experiments. Ions are laser Doppler … 9Be+ ion crystals for experimental tests of quantum control techniques. Our primary qubit is the 124 GHz …

Quantum Computer Architecture Using Nonlocal Interactions

May 1, 2003
Author(s)
G K. Brennen, D Song, Carl J. Williams
… the basic requirements essential to building a scalable quantum computer. Because many physical implementation … Quantum Computer Architecture Using Nonlocal Interactions …

Thermodynamic Analysis of Classical and Quantum Search Algorithms

January 19, 2018
Author(s)
Ray A. Perlner, Yi-Kai Liu
… We analyze the performance of classical and quantum search algorithms from a thermodynamic perspective, … size. We consider two examples that are relevant to post-quantum cryptography: Grover's search algorithm, and the quantum algorithm for collision-finding. Using Bennett's …

Quantum Gates Using Motional States in an Optical Lattice

June 1, 2001
Author(s)
E Charron, Eite Tiesinga, F H. Mies, Carl J. Williams
… We Study an implementation of a two-qubit universal quantum gate with neutral 87Rb atoms trapped in a far-detuned … Quantum Communication, Computing, and Measurement 3 … cold atoms, motional states, optical lattice, universal quantum gate … Proceedings of the 5th International Conference on Quantum Communication, Measurement and Computing …
Displaying 1 - 25 of 9846
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