Works (37)

Updated: April 15th, 2024 05:00

2024 journal article

Energy-resolved spin correlation measurements: Decoding transverse spin dynamics in weakly interacting Fermi gases

Physical Review A.

By: J. Huang n & J. Thomas n

Source: ORCID
Added: April 15, 2024

2023 journal article

Verifying a quasiclassical spin model of perturbed quantum rewinding in a Fermi gas

PHYSICAL REVIEW A, 108(4).

By: J. Huang n, C. Royse n, I. Arakelyan n & J. Thomas n

Sources: ORCID, Web Of Science, NC State University Libraries
Added: October 21, 2023

2022 journal article

Hydrodynamic Relaxation in a Strongly Interacting Fermi Gas

PHYSICAL REVIEW LETTERS, 128(9).

By: X. Wang n, X. Li n, I. Arakelyan n & J. Thomas n

Sources: ORCID, Web Of Science, NC State University Libraries
Added: March 4, 2022

2021 journal article

Energy-Resolved Information Scrambling in Energy-Space Lattices

PHYSICAL REVIEW LETTERS, 126(7).

By: S. Pegahan n, I. Arakelyan n & J. Thomas n

TL;DR: It is shown that the collective spin vector can be determined as a function of energy from the measured spin density, enabling general energy-space resolved protocols. (via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 20, 2021

2020 report

Fermi Gases in Bichromatic Superlattices

By: J. Thomas n

Source: ORCID
Added: February 7, 2021

2019 journal article

Designer Spatial Control of Interactions in Ultracold Gases

PHYSICAL REVIEW LETTERS, 122(4).

By: N. Arunkumar n, A. Jagannathan n & J. Thomas n

TL;DR: Wide tunability and spatial control of interactions in a two-component cloud of ^{6}Li fermions, using electromagnetically induced transparency is demonstrated, in excellent agreement with the continuum-dressed state theoretical model of optical control. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: February 18, 2019

2019 journal article

Measuring the Hydrodynamic Linear Response of a Unitary Fermi Gas

PHYSICAL REVIEW LETTERS, 123(16).

By: L. Baird n, X. Wang n, S. Roof n & J. Thomas n

TL;DR: It is shown that the time-dependent change of the density profile is sensitive to the thermal conductivity, which controls the relaxation rate of the temperature gradients and hence the responses arising from adiabatic and isothermal compression. (via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: October 28, 2019

2019 journal article

Spin-energy correlation in degenerate weakly interacting Fermi gases

PHYSICAL REVIEW A, 99(6).

By: S. Pegahan n, J. Kangara n, I. Arakelyan n & J. Thomas n

Sources: Web Of Science, NC State University Libraries
Added: July 15, 2019

2018 journal article

Atom Pairing in Optical Superlattices

PHYSICAL REVIEW LETTERS, 120(8).

By: J. Kangara n, C. Cheng n, S. Pegahan n, I. Arakelyan n & J. Thomas n

TL;DR: The pairing of fermions in a one-dimensional lattice of tunable double-well potentials using radio-frequency spectroscopy provides an understanding of the elementary pairing states in a superlattice, paving the way for new studies of strongly interacting many-body systems. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Probing Energy-Dependent Feshbach Resonances by Optical Control

PHYSICAL REVIEW LETTERS, 121(16).

By: N. Arunkumar, A. Jagannathan & J. Thomas

Sources: NC State University Libraries, NC State University Libraries
Added: November 5, 2018

2016 journal article

Fermi gases in the two-dimensional to quasi-two-dimensional crossover

PHYSICAL REVIEW A, 94(3).

By: C. Cheng n, J. Kangara n, I. Arakelyan n & J. Thomas n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Optical Control of Magnetic Feshbach Resonances by Closed-Channel Electromagnetically Induced Transparency

PHYSICAL REVIEW LETTERS, 116(7).

By: A. Jagannathan n, N. Arunkumar n, J. Joseph n & J. Thomas n

TL;DR: A new model of light-induced loss spectra is presented, employing continuum-dressed basis states, which agrees in shape and magnitude with loss measurements for both broad and narrow resonances, and predicts the trade-off between tunability and loss for the broad resonance in ^{6}Li. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Shear Viscosity of a Unitary Fermi Gas Near the Superfluid Phase Transition

PHYSICAL REVIEW LETTERS, 115(2).

By: J. Joseph n, E. Elliott n & J. Thomas n

TL;DR: The shear viscosity for a resonantly interacting Fermi gas is measured as a function of temperature from nearly the ground state through the superfluid phase transition into the high temperature regime and it is found that α(S) reveals features that were previously hidden in ⟨α (S)⟩. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases

PHYSICAL REVIEW LETTERS, 114(11).

By: W. Ong n, C. Cheng, I. Arakelyan & J. Thomas

TL;DR: The data for normal-fluid mixtures are reasonably well fit by a simple two-dimensional polaron model of the free energy and not predicted by the model is a phase transition to a spin-balanced central core, which is observed above a critical value of N(2)/N(1). (via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

Anomalous Minimum in the Shear Viscosity of a Fermi Gas

PHYSICAL REVIEW LETTERS, 113(2).

By: E. Elliott n, J. Joseph n & J. Thomas n

TL;DR: The static shear viscosity η in a two-component Fermi gas near a broad collisional (Feshbach) resonance is measured, and it is found that η has both a quadratic and a linear dependence on the interaction strength 1/(k(FI)a), where a is the s-wave scattering length and k( FI) is the Fermani wave vector for an ideal gas at the trap center. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

Observation of Conformal Symmetry Breaking and Scale Invariance in Expanding Fermi Gases

PHYSICAL REVIEW LETTERS, 112(4).

By: E. Elliott n, J. Joseph n & J. Thomas n

TL;DR: Scale invariance is tested and local thermal equilibrium in the hydrodynamic expansion of a Fermi gas of atoms as a function of interaction strength is examined and conformal symmetry breaking is observed, where deviates from ballistic flow. (via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Optical Control of Feshbach Resonances in Fermi Gases Using Molecular Dark States

PHYSICAL REVIEW LETTERS, 108(1).

By: H. Wu n & J. Thomas n

TL;DR: A general method for optical control of magnetic Feshbach resonances in ultracold atomic gases with more than one molecular state in an energetically closed channel using two optical frequencies to couple two states in the closed channel is proposed. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Optical control of the scattering length and effective range for magnetically tunable Feshbach resonances in ultracold gases

PHYSICAL REVIEW A, 86(6).

By: H. Wu n & J. Thomas n

UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Polaron-to-Polaron Transitions in the Radio-Frequency Spectrum of a Quasi-Two-Dimensional Fermi Gas

PHYSICAL REVIEW LETTERS, 108(23).

By: Y. Zhang n, W. Ong n, I. Arakelyan n & J. Thomas n

TL;DR: Radio-frequency spectra for a two-component mixture of a 6Li atomic Fermi gas are measured in a quasi-two-dimensional regime with the Fermani energy comparable to the energy level spacing in the tightly confining potential and the observed resonances do not correspond to transitions between confinement-induced dimers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Spin drag in a perfect fluid

Nature, 472(7342), 172–173.

By: J. Thomas*

Sources: Crossref, NC State University Libraries
Added: August 13, 2021

2010 journal article

The nearly perfect Fermi gas

Physics Today, 63(5), 34–37.

By: J. Thomas*

Sources: Crossref, NC State University Libraries
Added: August 13, 2021

2010 journal article

Universal Quantum Viscosity in a Unitary Fermi Gas

Science, 331(6013), 58–61.

By: C. Cao*, E. Elliott*, J. Joseph*, H. Wu*, J. Petricka*, T. Schafer n, J. Thomas*

TL;DR: The ratio of the shear viscosity to the entropy density is estimated and compared with that of a perfect fluid to compare with a string theory limit. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries, Web Of Science, ORCID
Added: August 6, 2018

2009 journal article

Is an Ultra-Cold Strongly Interacting Fermi Gas a Perfect Fluid?

Nuclear Physics A, 830(1-4), 665c–672c.

By: J. Thomas*

Sources: Crossref, NC State University Libraries
Added: August 13, 2021

2009 journal article

Thermodynamic Measurements in a Strongly Interacting Fermi Gas

Journal of Low Temperature Physics, 154(1-2), 1–29.

By: L. Luo* & J. Thomas*

author keywords: Fermi gas; Strong interactions; Thermodynamics; Superfluidity; Phase transition; Critical parameters
Sources: Crossref, NC State University Libraries
Added: September 18, 2021

2008 journal article

Is a Gas of Strongly Interacting Atomic Fermions a Nearly Perfect Fluid?

Journal of Low Temperature Physics, 150(3-4), 567–576.

By: A. Turlapov*, J. Kinast*, B. Clancy*, L. Luo*, J. Joseph* & J. Thomas*

author keywords: Fermi gas; superfluidity; quantum viscosity; strong interactions
Sources: Crossref, NC State University Libraries
Added: September 18, 2021

2006 journal article

Superfluidity in the picture

Nature, 442(7098), 32–33.

By: J. Thomas*

TL;DR: The first direct observation of that transition has been made between the Fermi gases and the superfluid state at low temperatures. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: September 18, 2021

2006 journal article

Ultracold Fermi gas on a chip

Nature Physics, 2(6), 377–378.

By: J. Thomas*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: September 18, 2021

2005 journal article

Heat Capacity of a Strongly Interacting Fermi Gas

Science, 307(5713), 1296–1299.

By: J. Kinast*, A. Turlapov*, J. Thomas*, Q. Chen*, J. Stajic* & K. Levin*

TL;DR: The heat capacity of an optically trapped, strongly interacting Fermi gas of atoms is measured and the onset of superfluidity at the observed transition point is predicted. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: August 28, 2019

2005 journal article

Virial Theorem and Universality in a Unitary Fermi Gas

Physical Review Letters, 95(12).

By: J. Thomas*, J. Kinast* & A. Turlapov*

TL;DR: It is observed that an optically trapped, unitary Fermi gas of 6Li obeys the virial theorem for an ideal gas over a wide range of temperatures, and is suggested as a simple volume thermometry method for unitary gases. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 18, 2019

2004 journal article

Dynamics of a Highly-Degenerate, Strongly-Interacting Fermi Gas of Atoms

Journal of Low Temperature Physics, 134(1/2), 655–664.

By: J. Thomas*, S. Hemmer*, J. Kinast*, A. Turlapov*, M. Gehm* & K. O'Hara*

Sources: Crossref, NC State University Libraries
Added: September 18, 2021

2004 journal article

Evidence for Superfluidity in a Resonantly Interacting Fermi Gas

Physical Review Letters, 92(15).

By: J. Kinast*, S. Hemmer*, M. Gehm*, A. Turlapov* & J. Thomas*

TL;DR: Collective oscillations of a trapped, degenerate Fermi gas of 6Li atoms at a magnetic field just above a Feshbach resonance are observed, providing the first evidence for superfluid hydrodynamics in a resonantly interacting Fermani gas. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 18, 2019

2002 journal article

All-Optical Production of a Degenerate Fermi Gas

Physical Review Letters, 88(12).

By: S. Granade*, M. Gehm*, K. O'Hara* & J. Thomas*

TL;DR: This work achieves degeneracy in a mixture of the two lowest hyperfine states of 6Li by direct evaporation in a CO2 laser trap, yielding the first all optically produced degenerate Fermi gas. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 18, 2019

2002 journal article

Experimental Simulation of Two-Particle Quantum Entanglement using Classical Fields

Physical Review Letters, 88(9).

By: K. Lee* & J. Thomas*

TL;DR: Simulation of two entangled quantum bits is experimentally demonstrated using classical fields of two frequencies and two polarizations, permitting simulation of four polarization-entangled Bell-like states. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 18, 2019

2002 journal article

Observation of a Strongly Interacting Degenerate Fermi Gas of Atoms

Science, 298(5601), 2179–2182.

By: K. O’Hara*, S. Hemmer*, M. Gehm*, S. Granade* & J. Thomas*

TL;DR: For the data taken at the longest evaporation times, it is found that collisional hydrodynamics does not provide a satisfactory explanation, whereas superfluidity is plausible. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 28, 2019

2001 journal article

Scaling laws for evaporative cooling in time-dependent optical traps

Physical Review A, 64(5).

By: K. O’Hara*, M. Gehm*, S. Granade* & J. Thomas*

Sources: Crossref, NC State University Libraries
Added: August 18, 2019

1997 journal article

Laser-noise-induced heating in far-off resonance optical traps

Physical Review A, 56(2), R1095–R1098.

By: T. Savard*, K. O’Hara* & J. Thomas*

Sources: Crossref, NC State University Libraries
Added: August 18, 2019

1993 journal article

Suboptical wavelength position measurement of moving atoms using optical fields

Physical Review Letters, 70(22), 3404–3407.

By: J. Gardner*, M. Marable*, G. Welch* & J. Thomas*

TL;DR: Spatial resolution of 200 nanometers, with linearity over a few microns, is obtained by the methods which ultimately will scale to yield nanometer resolution limited by the uncertainty principle. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 18, 2019

Employment

Updated: March 2nd, 2018 15:13

2011 - present

North Carolina State University Raleigh, NC, US
Professor Physics

Education

Updated: March 2nd, 2018 15:14

1969 - present

Massachusetts Institute of Technology Cambridge, MA, US
BS, Ph. D. Physics

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