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NIST Authors in Bold

Displaying 326 - 350 of 3643

VECSEL systems for quantum information processing with trapped beryllium ions

March 10, 2023
Author(s)
Shaun C. Burd, Jussi-Pekka Penttinen, Panyu Hou, Hannah Knaack, Sanna Ranta, Mika Maki, Emmi Kantola, Mircea Guina, Daniel Slichter, Dietrich Leibfried, Andrew C. Wilson
… of 235 and 313 nm. The systems are suitable for quantum information processing with trapped beryllium ions. … 2.4 W at 940 nm, using a gain mirror based on GaInAs/GaAs quantum wells, which is converted to 54 mW of 235 nm light … The other system uses a gain mirror based on GaInNAs/GaAs quantum wells, enabling wavelength extension above 1200 nm …

Certified Quantum Measurement of Majorana Fermions

March 12, 2020
Author(s)
Emanuel H. Knill, Abu Ashik Md. Irfan, Karl H. Mayer, Gerardo Ortiz
… We present a quantum self-testing protocol to certify measurements of … Contextuality, Majorana fermions, Quantum self testing … Certified Quantum Measurement of Majorana Fermions …

Enriching and purifying silicon epilayers for quantum information

December 6, 2016
Author(s)
Joshua M. Pomeroy, Kevin J. Dwyer, Ke Tang, Hyun S. Kim, Aruna N. Ramanayaka, David S. Simons
… spins that allow candidate qubits (single donors or quantum dots) to exhibit very long dephasing times compared … niche supplies exist and the advancement of silicon based quantum information is limited by access to these. As quantum information has made progress, efforts to increase …

Creating Polarization-Entangled Photon Pairs from a Semiconductor Quantum Dot Using the Optical Stark Effect

November 20, 2009
Author(s)
Andreas Muller, Wei Fang, John R. Lawall, Glenn S. Solomon
… Because of its atom-like properties, a semiconductor quantum dot is an ideal source of this light. However, … atoms' is generally precluded by the asym-metric quantum dot confinement and its associated fine-structure … well-known entanglement tests. Our approach applies to quantum dots with typical fine-structure splittings, …

Paving the Runway for Standardization of Post-Quantum Cryptography

February 1, 2022
Author(s)
Lily Chen
… This article will discuss quantum impact on the current widely deployed cryptographic … approaches being taken by SC27 to prepare for the quantum era. … Post-Quantum Cryptography, Standing Document 8, ISO/IEC JTC1 SC27 … Paving the Runway for Standardization of Post-Quantum Cryptography …

Scalable Quantum Logic Spectroscopy

November 2, 2022
Author(s)
Kaifeng Cui, Jose Valencia, Kevin Boyce, Ethan Clements, David Leibrandt, David Hume
… In quantum logic spectroscopy (QLS), one species of trapped ion … quantum information, optical clocks, trapped ions, quantum metrology … Scalable Quantum Logic Spectroscopy …

Epitaxial graphene for quantum resistance metrology

July 20, 2018
Author(s)
Mattias Kruskopf, Randolph Elmquist
… A new generation of graphene-based quantum Hall resistance standards promises high precision for … epitaxial graphene, quantum resistance metrology, quantum Hall effect … Epitaxial graphene for quantum resistance metrology …

Perspective: Reproducible coherence characterization of superconducting quantum devices

September 6, 2021
Author(s)
Corey Rae McRae, Joshua Combes, Gregory Stiel, Haozhi Wang, Sheng Xiang Lin, David P. Pappas, Josh Mutus
… As the field of superconducting quantum computing approaches maturity, optimization of … is proving to be a promising avenue toward large-scale quantum computers. However, this optimization is possible … analysis for qubits and resonators in superconducting quantum circuits and discuss what future investigations are …

Effects of resonant-laser excitation on the emission properties in a single quantum dot

March 27, 2018
Author(s)
Sergey Polyakov, Vivien Loo, Edward Flagg, Glenn S. Solomon, Olivier Gazzano, Tobias Huber
… non-resonantly, resonant excitation is necessary for many quantum information protocols as it often maximizes the … the resonance fluorescence in a solid-state system-- a quantum dot--with the addition of weak, non-resonant light. … change indicate that charge-carrier loss from the quantum dot is resonant laser. As we enter the Mollow triplet …

Subnanosecond Electro-optic Modulation of Triggered Single Photons from a Quantum Dot

May 23, 2011
Author(s)
Matthew T. Rakher, Kartik Srinivasan
… is an important resource for developing hybrid quantum systems which are composed of different physical … we extend this control to triggered photons emitted by a quantum dot, temporally shaping single photon wave-packets on … resulting from the recombination of an exciton in a quantum dot with exponentially decaying wave-packets are …

Toward Spin Squeezing with Trapped Ions

September 23, 2010
Author(s)
John J. Bollinger, Hermann Uys, Michael Biercuk, Joseph W. Britton
… measurements with precision beyond the standard quantum limit remains an important goal in many metrology … commonly for performing two-qubit entangling operations in quantum computing experiments. … ion trap, Penning trap, quantum metrology, spin squeezing … AIP conference proceedings: "Quantum Africa 2010: Recent progress in the theoretical & …

Quantum key distribution at telecom wavelengths with noise-free detectors

January 13, 2006
Author(s)
Danna Rosenberg, Sae Woo Nam, Philip A. Hiskett, Charles G. Peterson, Richard J. Hughes, Jane E. Nordholt, Adriana Lita, Aaron J. Miller
… The length of a secure link over which a quantum key can be distributed depends on the efficiency and … at the receiver. We report on the first demonstration of quantum key distribution using transition-edge sensors with … optical fiber. We discuss how use of these detectors in a quantum key distribution system can result in dramatic …

Phonon Assisted Gain in a Semiconductor Quantum Dot Maser

May 13, 2015
Author(s)
Michael Gullans, Yinyiu Liu, George Stehlik, Jason Petta, Jacob M. Taylor
… a microscopic model for the recently demonstrated double quantum dot (DQD) maser. In characterizing the gain of this … double quantum dot, cavity quantum electrodynamics, maser … Phonon Assisted Gain in a Semiconductor Quantum Dot Maser …

Quantum gate teleportation between separated zones of a trapped-ion processor

May 31, 2019
Author(s)
Yong Wan, Daniel Kienzler, Stephen D. Erickson, Karl H. Mayer, Ting R. Tan, Jenny J. Wu, Hilma H. Macedo De Vasconcelos, Scott C. Glancy, Emanuel H. Knill, David J. Wineland, Andrew C. Wilson, Dietrich G. Leibfried
… Large-scale quantum computers will inevitably require quantum gate operations between widely separated qubits, even within a single quantum information processing device. Nearly two decades … gate teleportation, Quantum computation, trapped ions … Quantum gate teleportation between separated zones of a …

Simulating Capacitances to Silicon Quantum Dots: Breakdown of the Parallel Plate Capacitor Model

September 5, 2012
Author(s)
Ted C. Thorbeck, Akira Fujiwara, Neil M. Zimmerman
… The ability to design gate capacitances to quantum dots is critical for many applications of quantum dots from quantum information and single electron logic to standards. … gate capacitance, quantum dots, silicon, coulomb blockade … Simulating Capacitances to Silicon Quantum Dots: Breakdown of the Parallel Plate Capacitor Model …

Colloquium: Advances in automation of quantum dot devices control

February 17, 2023
Author(s)
Justyna Zwolak, Jacob Taylor
… Arrays of quantum dots (QDs) are a promising candidate system to … systems and serve as a fundamental building block for quantum computers. In such semiconductor quantum systems, devices now have tens of individual … machine learning, quantum dots, autonomous control …

Toward improved quantum simulations and sensing with trapped two-dimensional ion crystals via parametric amplification

March 29, 2023
Author(s)
Matthew Affolter, Wenchao Ge, Bryce Bullock, Shaun Burd, Kevin Gilmore, Jennifer Lilieholm, Allison Carter, John J. Bollinger
… Improving coherence is a fundamental challenge in quantum simulation and sensing experiments with trapped ions. … Theory suggests this protocol can be used to improve quantum spin squeezing, limited in our system by off-resonant … of center-of-mass frequency fluctuations for improving quantum spin squeezing in our setup. …

Gradient-based stopping rules for maximum-likelihood quantum-state tomography

September 18, 2012
Author(s)
Scott C. Glancy, Emanuel H. Knill, Mark Girard
… When performing maximum likelihood quantum state tomography, one must find the quantum state that maximizes the likelihood for observed … on identically prepared systems, all having that quantum state. This optimization is usually performed with … maximum likelihood, quantum tomography, stopping criterion …

Formation of Strain Induced Quantum Dots in Gated Semiconductor Nanostructures

August 5, 2015
Author(s)
Ted C. Thorbeck, Neil M. Zimmerman
… or contacts are large enough to create strain‐induced quantum dots (QDs). We simulate two common silicon QD … Strain-induced quantum dots, quantum dots, silicon quantum dots … Formation of Strain Induced Quantum Dots in Gated Semiconductor Nanostructures …

Narrow photoluminescence linewidths from ensembles of self-assembled InGaAs quantum dots

June 1, 2000
Author(s)
Richard P. Mirin, Kevin L. Silverman, David H. Christensen, Alexana Roshko
… Self-assembled InGaAs quantum dots have been grown using alternating molecular … distribution changes from bimodal to monodisperse as the quantum dots grow larger. Room-temperature photoluminescence experiments on ensembles of these quantum dots show that the emitted intensity remains high as …

On-demand Single Photons from Individual Epitaxial Quantum Dots

October 24, 2005
Author(s)
Richard P. Mirin, Martin J. Stevens
… describe our group's efforts to use epitaxial InGaAs/GaAs quantum dots as sources of on-demand single photons and … progress towards microcavity-enhanced emission from single quantum dots, which is necessary for indistinguishable photon … antibunching, quantum dots, single photons …

Suppression of Directional Light-Wave Mixing in Normal and Quantum Gases

October 30, 2013
Author(s)
Lu Deng, Chengjie Zhu, Edward W. Hagley, W R. Garrett
… We discuss nonlinear optical processes in the presence of quantum gases. We show that in contrast to a normal gas where … “passively” participates in nonlinear optical processes, quantum gases “actively” interact with the wave mixing … wave mixing and scattering; nonlinear optics with quantum gases. …

Local Quantum Phase Transition in YFe 2 Al^d10

July 3, 2018
Author(s)
W. J. Gannon, L. S. Wu, I. A. Zaliznyak, W. H. Xu, A. M. Tsvelik, Yiming Qiu, Jose Rodriguez Rivera, M. C. Aronson
… 10 , a compound that forms naturally very close to a Τ=0 quantum phase transition. Fully quantum mechanical fluctuations of localized moments are … 2 Al 10 is achieved by a new and entirely local type of quantum phase transition that may originate with the creation …
Displaying 326 - 350 of 3643
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