335 citations · 1.6k across the 14 of their papers we have counts for
14 papers
Thermal Atom-Ion Collisions in K-Yb Hybrid System
Thai M. Hoang, Peter D. D. Schwindt, Yuan-Yu Jau
We present experimental studies of atom-ion collisions using buffer-gas cooled, trapped ytterbium (Yb) ions immersed in potassium (K) vapor. The range of the collisional temper…
Quantifying the validity and breakdown of the overdamped approximation in stochastic thermodynamics: Theory and experiment
Rui Pan, Thai M. Hoang, Zhaoyu Fei +4
Stochastic thermodynamics provides an important framework to explore small physical systems where thermal fluctuations are inevitable. In the studies of stochastic thermodynamics,…
Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor
Jonghoon Ahn, Zhujing Xu, Jaehoon Bang +5
Levitated optomechanics has great potentials in precision measurements, thermodynamics, macroscopic quantum mechanics and quantum sensing. Here we synthesize and optically levitate…
Experimental realization of Feynman's ratchet
Jaehoon Bang, Rui Pan, Thai M. Hoang +4
Feynman's ratchet is a microscopic machine in contact with two heat reservoirs, at temperatures and , that was proposed by Richard Feynman to illustrate the second law o…
Experimental test of the differential fluctuation theorem and a generalized Jarzynski equality for arbitrary initial states
Thai M. Hoang, Rui Pan, Jonghoon Ahn +3
Nonequilibrium processes of small systems such as molecular machines are ubiquitous in biology, chemistry and physics, but are often challenging to comprehend. In the past two deca…
Proposal for quantum many-body simulation and torsional matter-wave interferometry with a levitated nanodiamond
Yue Ma, Thai M. Hoang, Ming Gong +2
Hybrid spin-mechanical systems have great potentials in sensing, macroscopic quantum mechanics, and quantum information science. In order to induce strong coupling between an elect…
Torsional optomechanics of a levitated nonspherical nanoparticle
Thai M. Hoang, Yue Ma, Jonghoon Ahn +4
An optically levitated nanoparticle in vacuum is a paradigm optomechanical system for sensing and studying macroscopic quantum mechanics. While its center-of-mass motion has been i…
Kibble-Zurek Mechanism in a Spin-1 Bose-Einstein Condensate
M. Anquez, B. A. Robbins, H. M. Bharath +3
We observe power-law scaling of the temporal onset of excitations with quench speed in the neighborhood of the quantum phase transition between the polar and broken-axisymmetry pha…
Characterizing the energy gap and demonstrating an adiabatic quench in an interacting spin system
T. M. Hoang, M. Anquez, M. J. Boguslawski +3
Spontaneous symmetry breaking occurs in a physical system whenever the ground state does not share the symmetry of the underlying theory, e.g., the Hamiltonian. It gives rise to ma…
Parametric Excitation and Squeezing in a Many-Body Spin System
T. M. Hoang, M. Anquez, B. A. Robbins +4
We demonstrate a new method to coherently excite and control the quantum spin states of an atomic Bose gas using parametric excitation of the collective spin by time varying the re…
Electron spin control of optically levitated nanodiamonds in vacuum
Thai M. Hoang, Jonghoon Ahn, Jaehoon Bang +1
Electron spins of diamond nitrogen-vacancy (NV) centers are important quantum resources for nanoscale sensing and quantum information. Combining NV spins with levitated optomechani…
Dynamic stabilization of a quantum many-body spin system
T. M. Hoang, C. S. Gerving, B. J. Land +3
We demonstrate dynamic stabilization of an unstable strongly interacting quantum many-body system by periodic manipulation of the phase of the collective states. The experiment emp…
Non-equilibrium dynamics of an unstable quantum pendulum
C. S. Gerving, T. M. Hoang, B. J. Land +3
A pendulum prepared perfectly inverted and motionless is a prototype of unstable equilibria and corresponds to an unstable hyperbolic fixed point in the dynamical phase space. Unst…
Spin-Nematic Squeezed Vacuum in a Quantum Gas
C. D. Hamley, C. S. Gerving, T. M. Hoang +2
Using squeezed states it is possible to surpass the standard quantum limit of measurement uncertainty by reducing the measurement uncertainty of one property at the expense of anot…