335 citations · 1.6k across the 14 of their papers we have counts for
6 papers · 1 filter
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…
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…