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Displaying 26 - 50 of 3642

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 …

Gated InAs quantum dots embedded in surface acoustic wave cavities for low-noise optomechanics

October 8, 2024
Author(s)
Zixuan Wang, Ryan DeCrescent, Poolad Imany, Joseph Bush, Sae Woo Nam, Richard Mirin, Kevin L. Silverman
… Self-assembled InAs quantum dots (QDs) are promising optomechanical elements due … modulation of photons scattered from these efficient quantum emitters has been recently demonstrated using surface … low-noise optomechanical systems for microwave-to-optical quantum transduction. …

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 …

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 …

Time-Resolving Quantum Measurement Enables Energy-Efficient, Large-Alphabet Communication

September 21, 2020
Author(s)
Ivan Burenkov, Jabir Marakkarakath Vadakkepurayil, Abdella Battou, Sergey Polyakov
… requires a measurement of physical states. Because quantum measurements enable accuracy beyond the classical … develop measurement tools and applications. In particular, quantum-measurement-enhanced strategies are used for the … limits of the underlying physical systems. However, quantum-enhanced discrimination strategies demonstrated to …

Entanglement Routing in Quantum Networks: A Comprehensive Survey

February 11, 2025
Author(s)
Amar Abane, Michael Cubeddu, Van Sy Mai, Abdella Battou
… Entanglement routing in near-term quantum networks consists of choosing the optimal sequence of … end-to-end entanglement between two distant nodes on a quantum network. Similar to traditional routing technologies, a quantum routing protocol uses network information to choose …

Photonic Technologies for Quantum Information Processing

October 2, 2004
Author(s)
Prem Kumar, P G. Kwiat, Alan L. Migdall, Sae Woo Nam, Jelena Vuckovic, F Wong
… have seen tremendous research toward practical optical quantum information processing, including single- and … Journal of Quantum Information Processing … detectors, downconversion, entanglement, photon, quantum computing, quantum cryptography, quantum dot, single-photon detector, …

Spectroscopic Measurements and Models of Energy Deposition in the Substrate of Quantum Circuits by Natural Ionizing Radiation

November 12, 2024
Author(s)
Joseph Fowler, Paul Szypryt, Raymond Bunker, Ellen Edwards, Ian Fogarty Florang, JIANSONG GAO, Shannon Hoogerheide, Ben Loer, Hans Mumm, Nathan Nakamura, John Orrell, Elizabeth M. Scott, Jason Stevens, Daniel Swetz, Brent VanDevender, Michael Vissers, Joel Ullom
… was designed to mimic the size and composition of a quantum circuit. Specifically, we measured the background … islands—are suitable for integration with superconducting quantum circuits as detectors for background radiation … paths to reducing the impact of background radiation on quantum circuits, supported by an empirically validated model …

Growth, characterization, and applications of self-assembled InGaAs quantum dots

October 1, 2000
Author(s)
Richard P. Mirin, A C. Gossard
… Interest in quantum dots has reached new highs in recent years because of … discrete states, and thus these islands are referred to as quantum dots. InAs has a 7.2% lattice-mismatch to GaAs, and … apart into small, coherently-strained islands. Lateral quantum confinement has been observed in these InAs islands. …

Designing Nanocrystal Nanosystems: Quantum-Dot Quantum-Wells to Quantum-Dot Solids

April 1, 2001
Author(s)
Garnett W. Bryant, W Jaskolski
… spectra are obtained for dS/HgS/CdS and ZnS/CdS/ZnS quantum-dot quantum-well nanocrystals. Comparison with experiment shows … electronic structure, nanocrystal, optical absorption, quantum dot, semiconductor … from the International Conference on Semiconductor Quantum Dots | | …

Photonic quantum simulations of SSH-type topological insulators with perfect state transfer

June 3, 2021
Author(s)
Thomas Gerrits, Sae Woo Nam, Adriana Lita, M. Stobinska, T Sturges, A. Buraczewski, W.R. Clements, Jelmer J. Renema, Ian Walmsley
… could profoundly impact the fields of spintronics, quantum computing and low-power electronics. To enable … of matter beyond the reach of present-day experiments, quantum simulations provide tools to exactly engineer the … more general non-crystalline structures1. Here we show the quantum simulation of a non-crystalline topological insulator …

Parallel Self-Testing of the GHZ State with a Proof by Diagrams

January 31, 2019
Author(s)
Spencer J. Breiner, Amir Kalev, Carl Miller
… Quantum self-testing addresses the following question: is it … of a state at once), which has applications not only to quantum cryptography but also quantum computing. In this work we give the first parallel … Quantum Physics and Logic … quantum entanglement, nonlocal games, Bell inequalities, …

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 …

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 … IEEE International Conference on Quantum Computing and Engineering - QCE22 …

Demonstration of an Active Quantum Key Distribution Network

August 1, 2006
Author(s)
Xiao Tang, Lijun Ma, Alan Mink, Anastase Nakassis, Hai Xu, Barry J. Hershman, Joshua Bienfang, David H. Su, Ronald Boisvert, Charles W. Clark, Carl J. Williams
… We previously demonstrated a high speed, point to point, quantum key distribution (QKD) system with polariztion coding … network allows multiple users to generate and share secure quantum keys. In comparison with a passive QKD network, nodes … optical switches, quantum communications network, quantum cryptography, 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 …

Fast Quantum Algorithms for Traversing Paths of Eigenstates

May 17, 2010
Author(s)
S. Boixo, Emanuel Knill, Rolando Somma
… 0 Solutions to this problem have applications ranging from quantum physics simulation to optimization. For Hamiltonians, … Quantum Information & Computation … quantum computing, quantum algorithms, adiabatic methods … Fast Quantum Algorithms for Traversing Paths of Eigenstates …

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 resources used to implement quantum computations and the methods used in an architecture …

Temperature-dependent, single quantum dot single photon statistics

May 16, 2004
Author(s)
Richard P. Mirin
… photon antibunching measurements from single InGaAs/GaAs quantum dots. The second order intensity correlation … quantum dots, quantum optics, single photons … Tech. Dig., International Quantum Electronics Conference … Temperature-dependent, single quantum dot single photon statistics …

A Quantum Network Manager That Supports A One-Time Pad Stream

February 11, 2008
Author(s)
Alan Mink, Lijun Ma, Anastase Nakassis, Haolang Xu, Oliver T. Slattery, Barry J. Hershman, Xiao Tang
… We have begun to expand the NIST quantum key distribution (QKD) system into a quantum network to support secure cryptography. We are … Alice switched between Bob1 and Bob2. To support such a quantum network, we have implemented a quantum network … 2nd International Conference on Quantum, Nano, and Micro Technologies (ICQNM) …

Superconducting Transition Edge Sensors for Quantum Optics

June 2, 2015
Author(s)
Thomas Gerrits, Adriana E. Lita, Brice R. Calkins
… single-photon detectors allow novel measurements in quantum information processing and quantum photonic systems. The photon-number resolving … efficiency and has been used in a number of landmark quantum optics experiments. We review the operating principle … Superconducting devices in quantum optics …

Transition edge sensors with low jitter and fast recovery times

July 30, 2012
Author(s)
Antia A. Lamas-Linares, Nathan A. Tomlin, Brice R. Calkins, Adriana E. Lita, Thomas Gerrits, Joern Beyer, Richard P. Mirin, Sae Woo Nam
… photon detection have been shown to have almost perfect quantum efficiency (98%) at a wide range of wavelengths. Their high quantum efficiency combined with their ability to … structure. These are highly desired properties in quantum optics experiments, however, the wider adoption of …

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, …

Measurements of Relative Phase and Quantum Beat Note Between Bose-Einstein Condensates

August 1, 1998
Author(s)
D S. Hall, M R. Matthews, C E. Wieman, Eric A. Cornell
… Quantum Coherence and Decoherence … BEC, interferometer, quantum fluids … of the 6th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology … Measurements of Relative Phase and Quantum Beat Note Between Bose-Einstein Condensates …
Displaying 26 - 50 of 3642
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