U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 276 - 300 of 3642

Smaller Circuits for Arbitrary n-qubit Diagonal Computations

February 25, 2003
Author(s)
Stephen Bullock, I L. Markov
… phases are often required in applications.Constructing quantum circuits for diagonal computations using standard … Quantum Information & Computation … character, diagonal quantum computation, relative phase …

Scalable, chip-based optically-controlled gates for quantum information processing

November 15, 2016
Author(s)
Sergey V. Polyakov, Ivan Burenkov, Olga Tikhonova
… simple and robust method to build on-the-fly configurable quantum gates based on photonic exchange between quantum nodes. The idea is based on a high reflectivity of … from one node to another. An example of a protocol for quantum logic gates that relies on this framework is offered. …

Circuit Quantum Electrodynamics with a Spin-Orbit Qubit

October 17, 2012
Author(s)
Jacob M. Taylor, Karl Petersson, L. McFaul, M. Schroer, M. Jung, Andrew Houck, Jason Petta
… We develop a circuit quantum electrodynamics architecture for spin qubits by coupling an InAs double quantum dot to a high quality factor superconducting cavity. A charge trapped in the double quantum dot interacts with the electric field of the cavity, … Quantum dot, circuit QED, superconductor, InAs nanowire …

The membership problem for constant-sized quantum correlations is undecidable

January 26, 2021
Author(s)
Carl A. Miller, Honghao Fu, William Slofstra
… parties make measurements on an unknown entangled quantum state, what correlations can they achieve? How … is it to determine whether a given correlation is a quantum correlation? These questions are central to problems in quantum communication and computation. Previous work has …

Artificial Molecules

November 1, 2002
Author(s)
W Jaskolski, Garnett W. Bryant, J Planelles, M Zielinski
… artificial molecules by analogy to artificial atoms (quantum dots), are investigated. Empirical tight-binding and … together to form an artificial molecule. Formation of quantum dot lattices and interpretation of experimental data … International Journal of Quantum Chemistry …

Magic-state distillation with the four-qubit code

April 20, 2012
Author(s)
Adam M. Meier, Bryan K. Eastin, Emanuel H. Knill
… states is an often-cited technique for enabling universal quantum computing once the error rate for a special subset of … Quantum Information & Computation … distillation, fault-tolerance, magic state, quantum computing …

Comment on 'Laterally Squeezed Excitonic Wave Function in Quantum Wires'

October 16, 2008
Author(s)
Garnett W. Bryant, Y B. Band, Paul S. Julienne
… Recent magnetophotoluminescence data on T-shaped quantum wires is reinterpreted based on a detailed theory of magnetoexcitons in T-shaped quantum wires. We show that the previous analysis greatly … exiton, magnetic field, quantum wire … Comment on 'Laterally Squeezed Excitonic Wave Function in Quantum Wires' …

Pristine Quantum Criticality in a Kondo Semimetal

May 19, 2021
Author(s)
Wesley T. Fuhrman, Andrey Sidorenko, Jonathan Hanel, Hannes Winkler, Andrey Prokofiev, Jose Rodriguez Rivera, Yiming Qiu, Peter Blaha, Qimiao Si, Collin L. Broholm, Silke Paschen
… The observation of quantum criticality in diverse classes of strongly correlated … ratio reveals that, surprisingly, this compound is quantum critical without tuning. The dynamical energy over … behavior, which has been associated with Kondo destruction quantum criticality in metallic systems, may well be generic …

Innovations in Maximum Likelihood Quantum State Tomography

October 9, 2009
Author(s)
Scott C. Glancy, Emanuel H. Knill, Thomas Gerrits, Tracy S. Clement, Brice R. Calkins, Adriana E. Lita, Aaron J. Miller, Alan L. Migdall, Sae Woo Nam, Richard P. Mirin
… to measure the light, and we apply maximum likelihood quantum state tomography to the homodyne data to estimate the … assist in this analysis we have made a few improvements to quantum state tomography: we have devised a new iterative … homodyne detection, maximum likelihood, quantum state estimation, quantum state tomography …

On-chip, photon-number-resolving, telecom-band detectors for scalable photonic information processing

July 30, 2012
Author(s)
Thomas Gerrits, Nick Thomas-Peter, James Gates, Adriana E. Lita, Benjamin Metcalf, Brice R. Calkins, Nathan A. Tomlin, Anna E. Fox, Antia A. Lamas-Linares, Justin Spring, Nathan Langford, Richard P. Mirin, Peter Smith, Ian Walmsley, Sae Woo Nam
… Conference on Quantum Communication, Measurement and Computing … transition edge sensor, integrated waveguide detector, quantum information … Abstracts Conference on Quantum Communication, Measurement and Computing …

Perfect Quantum State Transfer With Superconducting Phase Qubits

October 16, 2008
Author(s)
Frederick Strauch, Carl J. Williams
… Superconducting quantum circuits, fabricated with multiple layers, are proposed to implement perfect quantum state transfer between nodes of a hypercube network. … devices such as the phase qubit, each node can transmit quantum information to any other node at a constant rate …

Canonical Decompositions of n-qubit Quantum Computations and Concurrence

February 25, 2003
Author(s)
Stephen Bullock, G K. Brennen
… SU(4) = [SU(2) SU(2)]?[SU(2) SU(2)] writes any two-qubit quantum computation as a composition of a local unitary, a … |?>|2 for n even. Thus, the C.C.D. shows that any n-qubit quantum computation is a composition of a computation … concurrence, entanglement, quantum computation …

Non-equilibrium Fractional Quantum Hall state of light

June 3, 2013
Author(s)
Mohammad Hafezi, Jacob M. Taylor
… strongly interacting models: Bose-Hubbard and Fractional Quantum Hall. The proposed preparation and measurement scheme … Fractional Quantum Hall, Quantum Simulation … Non-equilibrium Fractional Quantum Hall state of light …

Quantum amplification of motion of a mechanical oscillator

June 21, 2019
Author(s)
Shaun C. Burd, Raghavendra Srinivas, John J. Bollinger, Andrew C. Wilson, David J. Wineland, Dietrich G. Leibfried, Daniel H. Slichter, David T. Allcock
… knowledge of an oscillator’s motion is limited by quantum fluctuations that exist even if the oscillator is in … in an amplified coherent state, ideally with no added quantum noise. We implement this protocol with a trapped-ion … Quantum metrology, squeezing, trapped ion …

Dissipative production of a maximally entangled steady state of two quantum bits

December 19, 2013
Author(s)
John P. Gaebler, Yiheng Lin, Florentin Reiter, Ting Rei Tan, Ryan S. Bowler, Anders Sorensen, Dietrich G. Leibfried, David J. Wineland
… Entangled states are a key resource in fundamental quantum physics, quantum cryptography, and quantum computation [1]. To date, controlled unitary … Entanglement, Quantum Information, Trapped Ions … production of a maximally entangled steady state of two quantum bits …

Quantum Versus Classical Spin Fragmentation in Dipolar Kagome Ice Ho 3 Mg 2 Sb 3 O 14

September 29, 2020
Author(s)
Zhiling Dun, Xiaojian Bai, Jospeh A. Paddison, Emily Hollingworth, Nicholas Butch, Clarina D. Cruz, Matthew Stone, Tao Hong, Franz Demmel, Martin Mourigal, Haidong Zhou
… magnetic states combines geometrical frustration with quantum-tunneling effects. Spin-ice materials are canonical … magnetic field are the simplest many-body model of quantum tunneling. Here, we show that the tripod kagome … Mg 2 Sb 2 O 14 unites an ice-like magnetic degeneracy with quantum-tunneling terms generated by an intrinsic splitting …

SoK: How (not) to Design and Implement Post-Quantum Cryptography

May 17, 2021
Author(s)
James Howe, Thomas Prest, Daniel Apon
… Post-quantum cryptography has known a Cambrian Explosion in the … study systematizes the current state of knowledge on post-quantum cryptography. Compared to existing studies, we adopt … point of view allows to cast almost all classical and post-quantum schemes into just a few paradigms. We highlight …

Quantum routing with fast reversals

August 24, 2021
Author(s)
Ani Bapat, Andrew Childs, Alexey Gorshkov, Samuel King, Eddie Schoute, Hrishee Shastri
… Quantum … Quantum routing with fast reversals …

Fast Quantum Gates for Neutral Atoms

September 1, 2000
Author(s)
D Jaksch, J I. Cirac, W.H. Zoller, S L. Rolston, R Cote, M D. Lukin
… propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time … optical lattice quantum computer, quantum gate, Rydberg atom … Fast Quantum Gates for Neutral Atoms …

Quantum interference between photons from an atomic ensemble and a remote atomic ion

November 18, 2019
Author(s)
A. Craddock, J. Hannegan, D. Ornelas-Huerta, J. Siverns, A. Hachtel, E. Goldschmidt, James V. Porto, Q. Quraishi, S. Rolston
… and interference of photons produced by nodes within a quantum network. Quantum networks based on heterogeneous nodes provide a … characteristics of the photons generated by the different quantum systems. Here, we report on the observation of … quantum network, two-photon interference …

Quantum Resistant Public Key Cryptography: A Survey

April 14, 2009
Author(s)
Ray A. Perlner, David A. Cooper
… transactions over the Internet. However, advances in quantum computers threaten to undermine the security … in widespread use, are believed to be resistant to quantum computing based attacks and discuss some of the … public key cryptography, quantum computing … Quantum Resistant Public Key Cryptography: A Survey …

Efficient Randomness Certification by Quantum Probability Estimation

January 7, 2020
Author(s)
Emanuel H. Knill, Yanbao Zhang, Honghao Fu
… For practical applications of quantum randomness generation, it is important to produce a … framework, for yielding such protocols with respect to quantum side information. and encompasses previous methods … Distinguished from other methods developed in literature, quantum probability estimation can adapt to changing …

Scalable Register Initialization for Quantum Computing in a Optical Lattice

June 1, 2005
Author(s)
G K. Brennen, G Pupillo, A M. Rey, Charles W. Clark, Carl J. Williams
… as a means to prepare a register of atomic qubits in an quantum computer. Such architecture requires a lattice … transition. Maintaining the molecular coupling induces a quantum Zeno effect that can sustain a commensurately filled register for the duration of a quantum computation. …
Displaying 276 - 300 of 3642
Was this page helpful?