520 citations · 2.3k across the 43 of their papers we have counts for
18 papers · 1 filter
W-SLDA Toolkit: A simulation platform for ultracold Fermi gases
Gabriel Wlazłowski, Piotr Magierski, Michael McNeil Forbes +1
We present the W-SLDA Toolkit, a general-purpose software package for simulating ultracold Fermi gases within the framework of density functional theory and its time-dependent exte…
Fermionic Quantum Turbulence: Pushing the Limits of High-Performance Computing
Gabriel Wlazlowski, Michael McNeil Forbes, Saptarshi Rajan Sarkar +2
Ultracold atoms provide a platform for analog quantum computer capable of simulating the quantum turbulence that underlies puzzling phenomena like pulsar glitches in rapidly spinni…
Atom Interferometric Imaging of Differential Potentials Using an Atom Laser
Maren E. Mossman, Ryan A. Corbin, Michael McNeil Forbes +1
Interferometry is a prime technique for modern precision measurements. Atoms, unlike light, have significant interactions with electric, magnetic, and gravitational fields, making…
Detecting Entrainment in Fermi-Bose Mixtures
Khalid Hossain, Subhadeep Gupta, Michael McNeil Forbes
We propose an experimental protocol to directly detect the Andreev-Bashkin effect (entrainment) in the bulk mixture of a bosonic and fermionic superfluid using a ring geometry. Our…
Gravitational Caustics in an Atom Laser
Maren E. Mossman, Thomas M. Bersano, Michael McNeil Forbes +1
Typically discussed in the context of optics, caustics are envelopes of classical trajectories (rays) where the density of states diverges, resulting in pronounced observable featu…
Rotating quantum turbulence in the unitary Fermi gas
Khalid Hossain, Konrad Kobuszewski, Michael McNeil Forbes +3
Quantized vortices carry the angular momentum in rotating superfluids, and are key to the phenomenon of quantum turbulence. Advances in ultra-cold atom technology enable quantum tu…
Shock Waves in a Superfluid with Higher-Order Dispersion
Maren E. Mossman, Edward S. Delikatny, Michael McNeil Forbes +1
Higher-order dispersion can lead to intriguing dynamics that are becoming a focus of modern hydrodynamics research. Such systems occur naturally, for example in shallow water waves…
Negative mass hydrodynamics in a Spin-Orbit--Coupled Bose-Einstein Condensate
M. A. Khamehchi, Khalid Hossain, M. E. Mossman +4
A negative effective mass can be realized in quantum systems by engineering the dispersion relation. A powerful method is provided by spin-orbit coupling, which is currently at the…
Towards Quantum Turbulence in Cold Atomic Fermionic Superfluids
Aurel Bulgac, Michael McNeil Forbes, Gabriel Wlazłowski
Fermionic superfluids provide a new realization of quantum turbulence, accessible to both experiment and theory, yet relevant to phenomena from both cold atoms to nuclear astrophys…
Life Cycle of Superfluid Vortices and Quantum Turbulence in the Unitary Fermi Gas
Gabriel Wlazłowski, Aurel Bulgac, Michael McNeil Forbes +1
The unitary Fermi gas (UFG) offers an unique opportunity to study quantum turbulence both experimentally and theoretically in a strongly interacting fermionic superfluid. It yields…
Vortex Rings in a Trap
Aurel Bulgac, Michael McNeil Forbes
We present a simple Hamiltonian description of the dynamics of a quantized vortex ring in a trapped superfluid, compare this description with dynamical simulations, and characteriz…
Validating Simple Dynamical Simulations of the Unitary Fermi Gas
Michael McNeil Forbes, Rishi Sharma
We present a comparison between simulated dynamics of the unitary fermion gas using the superfluid local density approximation (SLDA) and a simplified bosonic model, the extended T…
Quantized Superfluid Vortex Rings in the Unitary Fermi Gas
Aurel Bulgac, Michael McNeil Forbes, Michelle M. Kelley +2
In a recent article, Yefsah et al. [Nature 499, 426 (2013)] report the observation of an unusual excitation in an elongated harmonically trapped unitary Fermi gas. After phase impr…
Time-Dependent Superfluid Local Density Approximation
Aurel Bulgac, Michael McNeil Forbes
The time-dependent superfluid local density approximation (TDSLDA) is an extension of the Hohenberg-Kohn density functional theory (DFT) to time-dependent phenomena in superfluid f…
The Unitary Fermi Gas in a Harmonic Trap and its Static Response
Michael McNeil Forbes
We use harmonically trapped systems to find the leading gradient corrections of the supefluid local density approximation (SLDA) - a density functional theory (DFT) describing the…
Effective-Range Dependence of Resonantly Interacting Fermions
Michael McNeil Forbes, Stefano Gandolfi, Alexandros Gezerlis
We extract the leading effective range corrections to the equation of state of the unitary Fermi gas from ab initio fixed-node quantum Monte Carlo (FNQMC) calculations in a periodi…
Resonantly Interacting Fermions In a Box
Michael McNeil Forbes, Stefano Gandolfi, Alexandros Gezerlis
We use two fundamental theoretical frameworks to study the finite-size (shell) properties of the unitary gas in a periodic box: 1) an ab initio Quantum Monte Carlo (QMC) calculatio…
The Unitary Fermi Gas: From Monte Carlo to Density Functionals
Aurel Bulgac, Michael McNeil Forbes, Piotr Magierski
In this chapter, we describe three related studies of the universal physics of two-component unitary Fermi gases with resonant short-ranged interactions. First we discuss an ab ini…