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NIST Authors in Bold

Displaying 301 - 325 of 3643

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. …

Quantum information processing with trapped ions,

January 1, 2003
Author(s)
David J. Wineland, Murray D. Barrett, Joseph W. Britton, J Chiaverini, B. L. DeMarco, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, Dietrich G. Leibfried, Till P. Rosenband, T Schaetz
… Experiments directed towards the development of a quantum computer based on trapped atomic ions are described … quantum information processing, quantum computation, entanglement, trapped atomic ions … Quantum information processing with trapped ions, …

Semiconductor Double Quantum Dot Micromaser

January 16, 2015
Author(s)
Michael Gullans, Yinyiu Liu, George Stehlik, Jacob M. Taylor, Jason Petta
… few- emitter limit provide opportunities for understanding quantum coherent phenomena, from THz sources to quantum communication. Here we demonstrate a microwave laser … by single electron tunneling events. Semiconductor double quantum dots (DQDs) serve as a gain medium and are placed …

Experimental Issues in Coherent Quantum-State Manipulation of Trapped Atomic Ions,

January 1, 1998
Author(s)
David J. Wineland, C Monroe, Wayne M. Itano, Dietrich G. Leibfried, B E. King, D M. Meekhof
… as possible, state manipulations are described in terms of quantum logic operations since the conditional dynamics implicit in quantum logic is central to the creation of entanglement. … some experimental issues in the proposal for trappedion quantum computation by J. I. Cirac and P. Zoller (University …

Engineered two-dimensional Ising interactions on a trapped-ion quantum simulator with hundreds of spins

April 26, 2012
Author(s)
Joseph W. Britton, Brian C. Sawyer, Adam Keith, C.-C. Joseph Wang, James K. Freericks, Hermann Uys, Michael Biercuk, John J. Bollinger
… The presence of long-range quantum spin correlations underlies a variety of physical … for as few as N ~ 30 particles. Feynman divined that a quantum simulator – a special-purpose "analog" processor built using quantum particles (qubits) – would be inherently adept at …

Quantum state tracking and control of a single molecular ion in a thermal environment

August 1, 2024
Author(s)
Yu Liu, Julian Schmidt, Zhimin Liu, David Leibrandt, Dietrich Leibfried, Chin-wen Chou
… dynamics, precision measurement, and molecule-based quantum technology. Details of this evolution are obscured … of species, facilitating their uses in fields including quantum science, molecular physics, and ion-neutral chemistry. … quantum control, cold molecules, quantum science …

Microwave quantum logic gates for trapped ions

August 11, 2011
Author(s)
Dietrich G. Leibfried, Christian Ospelkaus, Ulrich J. Warring, Yves Colombe, Kenton R. Brown, J. M. Amini, David J. Wineland
… Achieving control over physical systems at the quantum level is a goal shared by scientific fields as … reported here, we coherently manipulate the internal quantum states of the ions on time scales of 20 ns. We also … two atoms, with a gate operation that would enable general quantum computation. We implement this gate through the …

High-resolution spectral hole burning in InGaAs/GaAs quantum dots

February 10, 2006
Author(s)
Joseph J. Berry, Martin Stevens, Richard Mirin, Kevin L. Silverman
… of the homogeneous linewidth of self-assembled InGaAs/GaAs quantum dots at low temperature. We use this technique to … power broadening behavior of the homogeneous InGaAs/GaAs quantum dot line. We find that at a temperature of 9.8 K the … Quantum Dots … High-resolution spectral hole burning in InGaAs/GaAs quantum dots …

Dark Pulse Formation in a Quantum Dot Laser

July 1, 2001
Author(s)
Jonathan Zimmerman, Steven T. Cundiff, G von Plessen, J Feldmann, M Arzberger, J Bohm, M C. Amann, G Abstreiter
… The laser emission of an InAS/GaAs quantum dot laser after injection of a non-resonant optical … facets, and thus repeats periodically in the output of the quantum dot laser, forming a train of dark pulses. As a … laser, quantum dot, semiconductor, ultrafast … Dark Pulse Formation in a Quantum Dot Laser …

Optimizing the Storage and Retrieval Efficiency of a Solid-State Quantum Memory Through Tailored State Preparation

September 10, 2007
Author(s)
M D. Eisaman, Sergey V. Polyakov, M Hohensee, Jingyun Fan, P Hemmer, Alan L. Migdall
… ions with a spectral distribution optimized for use as a quantum memory for single-photon states. We introduce figures … the spectral distribution of the Pr3+ions when used as a quantum-memory node in a Duan-Cirac-Lukin-Zoller-type quantum-repeater scheme [1]. finally, we describe progress …

Quantum spin dynamics and entanglement generation with hundreds of trapped ions

June 15, 2016
Author(s)
Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, Michael L. Wall, A M. Rey, Michael S. Foss-Feig, John J. Bollinger
… Quantum simulation of spin models can provide insights into a … competition between entanglement and decoherence in open quantum systems. Trapped ions are an established platform for quantum simulation, but only systems with fewer than 20 ions … Ising model, non-equilibrium dynamics, Penning ion trap, quantum magnetism, quantum simulation, transverse-field Ising …

A Hybrid Authentication Protocol Using Quantum Entanglement and Symmetric Cryptography

June 13, 2001
Author(s)
David R. Kuhn
… This paper presents a hybrid cryptographic protocol, using quantum and classical resources, for authentication and … can communicate with the server using both classical and quantum channels. Resources do not share secret keys with … al., 2001] and can be used with BB84 [Bennett84] or other quantum key distribution protocols. …

Infinite-randomness criticality in monitored quantum dynamics with static disorder

June 23, 2023
Author(s)
Aidan Zabalo, Justin Wilson, Michael Gullans, Romain Vasseur, Sarang Goplakrishnan, David Huse, Jed Pixley
… We consider a model of monitored quantum dynamics with quenched spatial randomness: specifically, random quantum circuits with spatially varying measurement rates. … Quantum dynamics, critical phenomena, quantum error correction … Infinite-randomness criticality in monitored quantum dynamics with static disorder …

The Expanding Role of National Metrology Institutes in the Quantum Era

July 12, 2022
Author(s)
Alexander Tzalenchuk, Nicolas Spethmann, Tim Prior, Jay H. Hendricks, Yijie Pan, Vladimir Bubanja, Guilherme Temporao, Dai-Hyuk Yu, Damir Ilic, Barbara L. Goldstein
… physical artefacts, who holds the traceability chains? Quantum technologies enable the realization of high-precision … in the form of miniaturized, intrinsically accurate and quantum-referenced sensors. Combined with the new pathways … NMI, Quantum, NOAC, National Metrology Institute, Metrology, SI, …

Notes on Interrogating Random Quantum Circuits

May 29, 2020
Author(s)
Luis Brandao, Rene C. Peralta
… Consider a quantum circuit that, when fed a constant input, produces a … bit-strings that contain fresh randomness inherent to the quantum evaluation. When the circuit is freshly selected from … be simulated in a short amount of time by a classical (non-quantum) computer. This quantum vs. classical gap of …

Yang-Baxter operators need quantum entanglement to distinguish knots

January 12, 2016
Author(s)
Stephen P. Jordan, Gorjan Alagic, Michael Jarret
… Yang-Baxter equation, if unitary, can be interpreted as quantum gates. Here we show that if the gate is … obtain a connection between topological entanglement and quantum entanglement, as proposed by Kauffman et al.. … knot theory, quantum entanglement … Yang-Baxter operators need quantum entanglement to distinguish knots …

Status of a Multiplexed Single Photon On-Demand Source

August 1, 2003
Author(s)
Alan L. Migdall, Stefania Castelletto, M J. Ware
… and utility of the system for incorporation into a quantum conununication testbed. … heralded photon, parametric downconversion, quantum communication, quantum cryptography, single photon … Quantum Information and Computation, Conference | | Quantum Information and Computation | SPIE …

Continuous-variable quantum compressed sensing

July 9, 2012
Author(s)
Yi-Kai Liu, Matthias Ohliger, Vincent Nesme, David Gross, Jens Eisert
… introduce a novel method to faithfully reconstruct unknown quantum states that are approximately low-rank, using only a … states. As a technical result, this work generalizes quantum compressed sensing to the situation where the … As an application, we discuss the reconstruction of quantum states of light from homodyne detection and other …

Post-Quantum Cryptography and 5G Security: Tutorial

May 15, 2019
Author(s)
T. Charles Clancy, Robert W. McGwier, Lidong Chen
… a PKI-based trust model. This shift is happening just as quantum computing threatens to unravel the security of … the need to advance the 3GPP 5G standards and NIST post-quantum cryptography standards in tandem, with the goal of launching a "quantum ready" 5G core network. …

LDPC Error Correction in the Context of Quantum Key Distribution

April 23, 2012
Author(s)
Anastase Nakassis
… Secret keys can be established through the use of Quantum channels monitored through classical channels which … free. Because many of the feasible implementation of the quantum channel are subject to erasures –often massive- the … over the classical channel after the transfer of random quantum bit values have been transmitted. This, in …

Approximating vibronic spectroscopy with imperfect quantum optics

November 23, 2018
Author(s)
W.R. Clements, Jelmer Renema, Andreas Eckstein, Antonio A. Valido, Adriana Lita, Thomas Gerrits, Sae Woo Nam, Steven Kolthammer, Joonsuk Huh
… on a recently proposed protocol for performing quantum simulations of vibronic spectroscopy. Specifically, … vibronic spectroscopy, quantum optics, quantum simulation, boson sampling, quantum chemistry, … Approximating vibronic spectroscopy with imperfect quantum optics …

Hyperspectral photon-counting optical time domain reflectometry

October 4, 2022
Author(s)
Anouar Rahmouni, Samprity Saha, Oliver T. Slattery, Thomas Gerrits
… way for in-situ optical channel characterization of quantum network fibers where single-photon detectors are … Quantum Networks, single-photon OTDR, Optical Time-Domain … Quantum Communications and Quantum Imaging XX; (2022) …

High-Fidelity State Preparation, Quantum Control, and Readout of an Isotopically Enriched Silicon Spin Qubit

December 12, 2022
Author(s)
Adam Mills, Charlie Guinn, Michael Gullans, Mayer Feldman, Anthony Sigillito, M. Rakher, J. Kerckhoff, A. C. Jackson, Jason Petta
… Quantum systems must be prepared, controlled, and measured with high fidelity in order to per- form complex quantum algorithms. Control fidelities have greatly improved … readout visibilities > 99%, exceeding the threshold for quantum error correction. In the same device, we achieve …

Double Quantum Dot Floquet Gain Medium

November 7, 2016
Author(s)
Jacob M. Taylor, Michael Gullans, Jason Petta, J. Stehlik, Yinyiu Liu, Christopher Eichler, T Hartke, X Mi
… at the level of single photons1. The paradigm of circuit quantum electrodynam- ics (cQED) enables the generation of … light2–5 . When qubits are strongly driven, intriguing quantum effects emerge, including Landau-Zener-Stuckelberg … resonators and semiconductors – in the form of double quantum dots (DQD) – provides a versatile, electrically …

Flux-tunable heat sink for quantum electric circuits

April 20, 2018
Author(s)
Matti Partanen, K-Y Tan, S Masuda, Joonas Govenius, Russell Lake, Mate Jenei, Leif Gronberg, Juha Hassel, S Simbierowicz, Visa Vesterinen, J Tuorila, T Ala-Nissila, Mikko Mottonen
… microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a … quantum technological applications, microwave circuits, …
Displaying 301 - 325 of 3643
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