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Search Publications

NIST Authors in Bold

Displaying 2326 - 2350 of 3644

Weak-Measurement-Induced Heating in Bose-Einstein Condensates

June 23, 2023
Author(s)
Emine Altuntas, Ian Spielman
… dynamics of many-body systems. Here, we study quantum back-action in atomic Bose-Einstein condensates, … scattered by the atoms can be considered as a part of quantum measurement process whereby the change in the system …

Coherence and decoherence in the Harper-Hofstadter model

May 19, 2021
Author(s)
Ian Spielman, Qiyu Liang, Dimi Trypogeorgos, Ana Valdes-Curiel, Junheng Tao, Mingshu Zhao
… We quantum simulated the 2D Harper-Hofstadter (HH) lattice model … when transverse flux is a rational fraction of the flux quantum and remarkably find that for irrational fractions the …

Feshbach resonances in p-wave three-body recombination within Fermi-Fermimixtures of open-shell 6-Li and closed-shell 173-Yb atoms

August 14, 2020
Author(s)
Aliana Green, Hui Li, Jun Hui See Toh, Xinxin Tang, Katherine McCormick, Ming Li, Eite Tiesinga, Svetlana Kotochigova, Subhadeep Gupta
… and closed-shell 173 Yb atoms with temperatures just above quantum degeneracy for both fermionic species. Resonances are … formation of ultracold doublet ground-state molecules and quantum simulation of superfluid p-wave pairing. …

Broadband detection of multiple spin and orbital angular momenta via dielectric metasurface

July 26, 2020
Author(s)
Si Zhang, Pengcheng Huo, Wenqi Zhu, Cheng Zhang, Peng Chen, Mingze Liu, Lu Chen, Henri Lezec, Amit Agrawal, Yanqing Lu, Ting Xu
… of optical communications, imaging, micromanipulation and quantum optics. However, complex optical setups are required … spin encoded photon states with applications in integrated quantum optics and optical communications. …

Dynamic Onset of Feynman Relation in the Phonon Regime

May 9, 2016
Author(s)
Lu Deng, Edward W. Hagley, Yan Li, Chengjie Zhu
… that in a light-matter wave mixing process 3 in a Bosonic quantum gas 4, an optical-dipole potential arising from the … significantly alter the density excitation response of a quantum gas. Indeed, this dynamic relation with a non-Feynman …

Rashba realization: Raman with RF

May 2, 2016
Author(s)
Ian B. Spielman, Daniel Campbell
… the Raman matrix elements that link m_F magnetic sublevel quantum numbers separated by two are also suppressed. These … Raman couplings can link the three XYZ states familiar to quantum chemistry, which possess the necessary connectivity …

Topological Magnon Bands in Kagome Lattice Ferromagnet

September 28, 2015
Author(s)
Robin Michael Daub Chisnell, Joel Helton, D. E. Freedman, D. K. Singh, R. I. Bewley, D. G. Nocera, Y. S. Lee
… The success of band theory in describing the motion of quantum particles inside solids is a foundational … can display unprecedented behavior, such as the fractional quantum Hall effect. We report experimental evidence for a …

Creating Nanostructured Superconductors by Local Current Annealing

September 17, 2015
Author(s)
Hongwoo H. Baek, Jeonghoon Ha, Duming Zhang, Bharath NMN Natarajan, Jonathan P. Winterstein, Renu Sharma, Rongwei Hu, Kefeng Wang, Steven Ziemak, Johnpierre Paglione, Young Kuk, Nikolai B. Zhitenev, Joseph A. Stroscio
… condensate of Cooper-paired electrons with a macroscopic quantum wavefunction. Dramatic effects can occur when the … superconductivity, with possible applications in quantum computing. However, challenges remain in controlling …

Single-Photon Detector Calibration

July 7, 2015
Author(s)
Sergey V. Polyakov
… operation and approach the problem from the viewpoint of quantum measurement theory to characterize the detection of arbitrary input quantum states (i.e. find a detector’s POVM), although in …

1 V Josephson arbitrary waveform synthesizer

September 17, 2014
Author(s)
Samuel P. Benz, Steven B. Waltman, Anna E. Fox, Paul D. Dresselhaus, Alain Rufenacht, Jason M. Underwood, Charles J. Burroughs
… A quantum-accurate waveform with a root-mean-square (RMS) … pulse bias technique was used to bias into the second quantum state a superconducting integrated circuit with …

Order by Disorder Spin Wave Gap in the XY Pyrochlore Magnet Er 2 Ti 2 O 7

February 4, 2014
Author(s)
Kathryn Aileen Ross, Yiming Qiu, John R. Copley, H. A. Dabkowska, B. D. Gaulin
… 2 Ti 2 O 7 reveals a most convincing case of the ¿order by quantum disorder¿ (ObQD) mechanism for ground state selection. This mechanism relies on quantum fluctuations to remove an accidental symmetry of the …

Two-Loop Bethe Logarithms for non-S Levels

October 16, 2008
Author(s)
Ulrich D. Jentschura
… for Rydberg states with high angular momentum quantum numbers. Our results reach the predictive limits of the quantum electrodynamic theory of the Lamb shift. …

100 mV AC-DC Transfer Standard Measurements Using An AC Josephson Voltage Standard

June 1, 2006
Author(s)
Charles J. Burroughs, Samuel Benz, Paul Dresselhaus
… dc voltages and ac sinewaves, so that it can be used as a quantum-based voltage source for ac metrology. In this paper, … of a practical ac Josephson voltage standard based upon a quantum voltage source that produces precisely calculable ac …

Present Status of Radiometric Quality Silicon Photodiodes

February 1, 2003
Author(s)
R Korde, C Prince, N. Cunningham, Robert E. Vest, E Gullikson
… front window. Fabrication of photodiodes 100% internal quantum efficiency is demonstrated and their necessity for … the radiometric community. Results on the stability of the quantum efficiency of the fabricated diodes after exposure to …

Pulse Patterns for the Josephson Arbitrary Waveform Synthesizer

August 30, 2024
Author(s)
Nathan Flowers-Jacobs, Raegan Johnson, Jeremy Thomas, Alain Rufenacht, Anna Fox, Paul Dresselhaus, Samuel Benz
… algorithms are used to determine the desired sequence of quantum-based voltage pulses used by the Josephson Arbitrary …

Theory of Spin Transfer Torque

September 1, 2007
Author(s)
Mark D. Stiles
… terms of semiclassical transport calculations coupled with quantum mechanical calculations of the behavior of spins at …

Pulse-to-pulse jitter measurement by photon correlation in high-ss lasers

January 20, 2015
Author(s)
Armand Lebreton, Abram Izo, Remy Braive, Nadia Belabas, Isabelle Sagnes, Francesco F. Marsili, Varun Verma, Sae Woo Nam, Thomas Gerrits, Isabelle Robert-Philip, Martin Stevens, Alexios Beveratos
… Photon statistics and coherence theory, Quantum ¿uctuations, quantum noise, and quantum jumps, Photonic crystal lasers and coherent e¿ects, …
Displaying 2326 - 2350 of 3644
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