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Displaying 226 - 250 of 9846

Optical quantum memory and its applications in quantum communication systems

January 16, 2020
Author(s)
Lijun Ma, Xiao Tang, Oliver T. Slattery
… Optical quantum memory is a device that can store the quantum state of photons and retrieve it with high fidelity … The device can be used to enhance performance for many quantum communication systems such as measurement device … Quantum memory, Quantum communication, Quantum key …

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 …

Synthesis of Quantum Logic Circuits

January 31, 2006
Author(s)
V V. Shende, Stephen Bullock, I L. Markov
… Operators acting on a collection of two-level quantum-mechanical systems can be represented by quantum circuits.  In this work we develop a decomposition of … by approximately a factor of two.  The required number of quantum controlled-not s (i.e. two-qubit interactions)  (1/2) …

Realization of a Quantum Random Walk With Ultracold Atoms

February 1, 2004
Author(s)
D Ciampini, M B. d'Arcy, J M. Grossman, Kristian Helmerson, Paul D. Lett, William D. Phillips, A Vaziri, S L. Rolston
… random walks have many applications in computer science. Quantum random walks (QRWs) [1] have been suggested as the potential basis for quantum computing algorithms. Such algorithms have been … can give insight that may aid in systematically developing quantum computing algorithms with practical applications.We …

Narrow Photoluminescence Linewidths from Ensembles of Self-Assembled InGaAs Quantum Dots

June 1, 2000
Author(s)
Richard Mirin, Kevin L. Silverman, David H. Christensen
… Self-assembled InGaAs quantum dots (QDs) have been intensely studied for the past … low threshold, temperature-insensitive laser diodes (1) to quantum computers. … photoluminescence, quantum dots … Linewidths from Ensembles of Self-Assembled InGaAs Quantum Dots …

Joint Spectral Measurements at the Hong-Ou-Mandel Interference Dip

January 29, 2013
Author(s)
Thomas Gerrits, Francesco F. Marsili, Varun B. Verma, Adriana E. Lita, Antia A. Lamas-Linares, Jeffrey A. Stern, Matthew Shaw, William Farr, Richard P. Mirin, Sae Woo Nam
… Conference on Quantum Communication, Measurement and Computing … Abstracts Conference on Quantum Communication, Measurement and Computing …

Experimental Ambitions for DC-Area Quantum Network Testbed

March 23, 2023
Author(s)
Oliver T. Slattery, Adam Black
… Quantum networks [1] bear the promise of one day enabling … applications such as secure communications, distributed quantum computing, distributed sensing, and time … non-proprietary environment for test and evaluation of quantum networking concepts, components, protocols, and …

High coherence plane breaking packaging for superconducting qubits

February 7, 2018
Author(s)
David P. Pappas, Xian Wu, Nicholas T. Bronn, Salvatore B. Olivadese, Vivekananda P. Adiga, Jerry M. Chow
… Wedemonstrate a pogo pin package for a superconducting quantum processor specifically designed with a nontrivial … Two experiments on two nominally identical superconducting quantum processors in pogo packages, which use commercially … Quantum Science and Technology …

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 …

Quantum coding with low-depth random circuits

September 24, 2021
Author(s)
Michael Gullans, David A. Huse, Stefan Krastanov, Liang Jiang, Steven T. Flammia
… Random quantum circuits have played a central role in establishing the computational advantages of near-term quantum computers over their conventional counterparts. Here, … local connectivity in D ≥ 1 spatial dimensions to generate quantum error-correcting codes. For random stabilizer codes …

Computer Determination of the Constituent Structure of Biological Images

January 1, 1971
Author(s)
Russell A. Kirsch
… A class of algorithms is described which enables computer quantized images to be decomposed into constituent … biological images, computer quantized imags, syntactic analysis … Computer Determination of the Constituent Structure of …

High-performance semiconductor quantum dot-single- photon sources

June 3, 2021
Author(s)
Glenn S. Solomon
… Single photons are a key, fundamental element of most quantum optical technologies, be it for the development of large-scale quantum communication networks, for quantum simulation, or for connecting quantum memories in a … single photon source, quantum dot, quantum light …

Quantum phase modulation with acoustic cavities and quantum dots

April 29, 2022
Author(s)
Poolad Imany, Zixuan Wang, Ryan DeCrescent, Robert Boutelle, Corey McDonald, Travis Autry, Samuel Berweger, Pavel Kabos, Sae Woo Nam, Richard Mirin, Kevin L. Silverman
… frequencies is crucial for chip-scale classical and quantum processing as well as for long-range networks of superconducting quantum processors. A successful approach to bridge the gap … Quantum transduction, quantum networks, quantum optics, … Quantum phase modulation with acoustic cavities and quantum …

Direct-Laser-Written Polymer Nanowire Waveguides for Broadband Single Photon Collection from Epitaxial Quantum Dots into a Gaussian-like Mode

November 16, 2023
Author(s)
Edgar Perez, Cori Haws, Marcelo Davanco, Jindong Song, Luca Sapienza, Kartik Srinivasan
… Single epitaxial quantum dots (QDs) are a leading technology for quantum light generation, particularly when they are embedded … of micro- and nano- scale devices that can interface with quantum emitters and address this challenge. In this study, … Advanced Quantum Technologies …

Tunnel-Coupled Quantum Dots: Atomistic Theory of Quantum Dot Molecules and Arrays

June 1, 2003
Author(s)
Garnett W. Bryant, Javier Aizpurua, W Jaskolski, M Zielinski
… An understanding of how dots couple in quantum dot molecules and arrays is needed so that the … electronic structure, nanocrystals, optical spectra, quantum dots, self-assembled dots, tight-binding … Physics and Technology of Semiconductor Quantum Dots, Symposium E | | Physics and Technology of …

Demonstration of a quantum controlled-NOT gate in the telecom band

April 4, 2008
Author(s)
Jun Chen, Joseph B. Altepeter, Milja Medic, Fook L. Kim, Burc Gokden, Robert Hadfield, Sae Woo Nam, Prem Kumar
… We present the first quantum controlled-NOT (CNOT) gate realized using a … states are produced and fully characterized by performing quantum-state tomography, demonstrating the gate's … operation makes this CNOT gate particularly suitable for quantum-information-processing tasks that are at the …

Broadband Lamb shift in an engineered quantum system

March 11, 2019
Author(s)
Matti Silveri, S Masuda, Vasilii Sevriuk, K-Y Tan, Mate Jenei, Eric Hyyppa, Fabian Hassler, Matti Partanen, Jan Goetz, Russell Lake, Leif Gronberg, Mikko Mottonen
… The shift of the energy levels of a quantum system owing to broadband electromagnetic vacuum … Lamb shift-has been central for the development of quantum electrodynamics and for the understanding of atomic … of small energy shifts is still important for engineered quantum systems, in light of the extreme precision required …

EIT Quantum Memory with Cs Atomic Vapor for Quantum Communication

September 1, 2015
Author(s)
Lijun Ma, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
… Quantum memory is a key device in the implementation of quantum repeaters for quantum communications and quantum networks. We demonstrated … Quantum Memory, Quantum Communication, Electromagnetic introduced transparency … EIT Quantum Memory with Cs Atomic Vapor for Quantum Communication …

Operational analysis of a quantum dot, optically gated, field-effect transistor as a single-photon detector

July 1, 2007
Author(s)
Eric Gansen, Mary A. Rowe, Marion Greene, Danna Rosenberg, Todd E. Harvey, Mark Su, Robert Hadfield, Sae Woo Nam, Richard Mirin
… single-photon detector, where a layer of self-assembled quantum dots (QDs) is used as an optically addressable … in its dedicated absorption layer with an internal quantum efficiency (IQE) of up to 68+or-}18%. Given the noise … IEEE Journal of Selected Topics in Quantum Electronics …

A SDN-based Network Layer for Edge Computing

November 7, 2019
Author(s)
An Wang, Zili Zha, Yang Guo, Songqing Chen
… (IoT) devices and applications drive the new computing paradigm, Edge Computing. It significantly improves network performance by … to scalability, allowing service providers to expand their computing capability as needed. On the other hand, emerging … IEEE Symposium on Edge Computing …
Displaying 226 - 250 of 9846
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