U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 1851 - 1875 of 3644

Antichiral Spin Order, its Soft Modes, and their Hybridization with Phonons in the Topological Semimetal Mn 3 Ge

August 3, 2020
Author(s)
Y. Chen, Jonathan Gaudet, S. Dasgupta, G. G. Marcus, J. Lin, T. Chen, T. Tomita, M. Ikhlas, Yang Zhao, Wangchun Chen, Matthew B. Stone, O. Tchernyshyov, S. Nakatsuji, Collin L. Broholm
… Quantum materials with strong transport responses to … breaking and the associated domain configurations on quantum transport. Here we provide a comprehensive … The itinerant character of the magnetism that drives quantum transport is apparent in spin wave damping and …

Chip-scale atomic diffractive optical elements

December 31, 2018
Author(s)
Liron Stern, Douglas G. Bopp, Susan A. Schima, Vincent N. Maurice, John E. Kitching
… have long provided a useful material platform with unique quantum properties. The efficient light-matter interaction in … including accurate and precise metrology 1-3 and quantum devices 4-7 . In the last few decades, the field of … enhanced functionality. Here, we demonstrate chip-scale, quantum diffractive optical elements which map atomic states …

Electronic transport in two dimensional graphene

May 16, 2011
Author(s)
Shaffique Adam, Sankar Das Sarma, Euyheon Hwang, Enrico Rossi
… semiconductor systems (e.g. heterostructures, quantum wells, inversion layers) so that the unique features … spectrum are highlighted. Experiment and theory as well as quantum and semi-classical transport are discussed in a … formation, p-n junctions, localization, percolation, quantum-classical crossover, midgap states, quantum Hall …

Dynamical Tunnelling of Ultracold Atoms

July 1, 2001
Author(s)
W K. Hensinger, H Heffner, A Browaeys, N R. Heckenberg, Kristian Helmerson, C R. McKenzie, G J. Milburn, William D. Phillips, S L. Rolston, H Rubinsztein-Dunlop, B Upcroft
… Nowhere does the divergence of the quantum and classical descriptions of particle motion become more apparent than in quantum tunneling between two regions of classically stable … nonclassical motion, studied since the earlies days of quantum mechanics, in tunneling through an energy barrier. In …

Electromagnetically induced transparency in a superconducting three-level system

April 16, 2009
Author(s)
Mika Sillanpaa, Katarina Cicak, Fabio Altomare, Jae Park, Raymond Simmonds, Jian Li, G. S. Paraoanu, Pertti Hakonen
… When a three-level quantum system is irradiated by an intense coupling field … the population is trapped in the ground state, is known in quantum optics as electromagnetically induced transparency . … can be considered an artificial atom with a multilevel quantum structure. These observations are qualitatively …

Calculation of Hydrogenic Bethe Logarithms for Rydberg States

October 16, 2008
Author(s)
U Jentschura, Peter J. Mohr
… (one-loop) Bethe logarithms for all states with principal quantum numbers n 200. While the calculation of the Bethe … states, and in particular states for which the principal quantum number is much larger than the orbital angular momentum quantum number. Two evaluation methods are contrasted. One of …

Precision Spectroscopy in He as a Test of QED

December 1, 1999
Author(s)
S Bergeson, A Balakrishnan, K G. Baldwin, Thomas B. Lucatorto, J P. Marangos, T J. McIlrath, Thomas R. O'Brian, S L. Rolston, Craig J. Sansonetti, J Wen, N Westbrook, C H. Cheng, E E. Eyler
… levels have spurred the development and refinement of quantum electrodynamic calculations. We have extended very … He -. The importance of this measurement to high accuracy quantum electrodynamics calculations is discussed. Details of …

Tuning a magnetic energy scale with pressure and field in UTe2

January 8, 2025
Author(s)
Hyunsoo Kim, I-Lin Liu, Wen-Chen Lin, Yun Eo, Sheng Ran, Nicholas Butch, Johnpierre Paglione
… fragile ordered state is suppressed to zero temperature, a quantum phase transition occurs, which is often marked by the … appearance of unconventional superconductivity. While the quantum critical point can be hidden, the influence of the quantum criticality extends to fairly high temperatures, …

Excited Thomas-Efimov Levels in Ultracold Gases

October 12, 2021
Author(s)
M D. Lee, T Koehler, Paul S. Julienne
… Since the early days of quantum physics, the complex behavior of three interacting … 315 (2006)] report on experimental evidence for Efimov quantum states in an ultracold gas of cesium atoms. Such quantum states refer to an infinite series of energy levels …

Low-Temperature Rotational Tunneling of Tetrahydroborate Anions in Lithium Benzimidazolate-Borohydride Li 2 (blm)BH 4

August 7, 2019
Author(s)
Alexander V. Skripov, Mirjana NMN Dimitrievska, Olga A. Babanova, R. V. Skoryunov, Alexei V. Soloninin, Fabrice Morelle, Y. Filinchuk, Antonio Faraone, Hui Wu, Wei Zhou, Terrence J. Udovic
… a gradual transition from the regime of low-temperature quantum dynamics to the regime of classical … borohydride, NMR, nuclear magnetic resonance, quantum tunneling, quasielastic neutron scattering, QENS, …

Synthetic clock transitions via continuous dynamical decoupling

January 16, 2018
Author(s)
Ian B. Spielman, Nathan Lundblad, Ana Valdes-Curiel, Dimitrius Trypogeorgos
… Decoherence of quantum systems due to uncontrolled fluctuations of the environment presents fundamental obstacles in quantum science. `Clock' transitions which are insensitive to … focused on fragile many-body phases relevant to quantum magnetism, artificial gauge fields, and topological …

The Bromine Doping of Polyacetylene

April 1, 2003
Author(s)
C. K. Chiang
… model system not only for polymer science but also for quantum physics.Soliton theories based on its simple but unique 1-D structure inspired many new quantum concepts for those more complicated conducting … complex polymers could lead to better understanding of the quantum electronic devices at the molecular level. …

Nagaoka ferromagnetism in 3 * 3 arrays and beyond

December 26, 2024
Author(s)
Yan Li, Keyi Liu, Garnett Bryant
… the first time in experiments on a 2 × 2 array of gated quantum dots. Atomically precise fabrication of dopant arrays … to study NF in different array geometries through analog quantum simulation. Here we present theoretical simulations … done for 3 × 3 arrays and larger N × N arrays of quantum dots, and predict the emergence of different forms of …

Strong interactions between integrated microresonators and alkali atomic vapors: towards single-atom, single-photon operation

September 24, 2024
Author(s)
Roy Zekzer, Xiyuan Lu, Khoi Hoang, Rahul Shrestha, Sharoon Austin, Feng Zhou, Ashish Chanana, Glenn Holland, Daron Westly, Paul Lett, Alexey Gorshkov, Kartik Srinivasan
… Cavity quantum electrodynamics (cQED), the interaction of a … foundational building block in different architectures for quantum computation, communication, and metrology. The strong … enables single photon operation which is required for quantum gates and sources. Cold atoms, quantum dots, and …

Superfluid-to-Mott-Insulating Transition in a One-Dimensional Atomic Gas

February 1, 2004
Author(s)
C Fertig, K M. O'Hara, J H. Huckans, James V. Porto, William D. Phillips
… a great deal of attention as a prototypical example of a quantum phase transition in a strongly-correlated system for which quantum fluctuations drive the phase transition at zero … in using the Mott transition as a method to initialize a quantum register with exactly one atom per lattice site. This …

Dual Josephson impedance bridge: towards a universal bridge for impedance metrology

May 19, 2020
Author(s)
Frederic Overney, Nathan Flowers-Jacobs, Blaise Jeanneret, Alain Rufenacht, Anna Fox, Paul Dresselhaus, Samuel Benz
… impedance standards that are (a) directly traceable to the quantum Hall effect, (b) used as part of international … Dual Josephson Impedance Bridge, DJIB, impedance standards, quantum Hall effect, international impedance comparisons, …
Displaying 1851 - 1875 of 3644
Was this page helpful?