58 citations · 486 across the 36 of their papers we have counts for
30 papers · 1 filter
Energetic and Structural Properties of Two-Dimensional Trapped Mesoscopic Fermi Gases
Emma K. Laird, Brendan C. Mulkerin, Jia Wang +1
We theoretically investigate equal-mass spin-balanced two-component Fermi gases in which pairs of atoms with opposite spins interact via a short-range isotropic model potential. We…
Hybrid-pair superfluidity in a strongly driven Fermi gas
Brendan C. Mulkerin, Olivier Bleu, Cesar R. Cabrera +2
We explore the paired superfluid phases of a Fermi gas in the presence of a continuous Rabi drive. We focus on the case where two components are strongly coupled by the drive, form…
Scattering resonances and pairing in a Rabi-coupled Fermi gas
Olivier Bleu, Brendan C. Mulkerin, Cesar R. Cabrera +2
We investigate the possibility of using a Rabi drive to tune the interactions in an atomic Fermi gas. Specifically, we consider the scenario where two fermion species (spins) are R…
Universal Efimov Scaling in the Rabi-Coupled Few-Body Spectrum
Anthony N. Zulli, Brendan C. Mulkerin, Meera M. Parish +1
We investigate the behavior of the Efimov effect -- a universal quantum few-body phenomenon -- in the presence of an external driving field. Specifically, we consider up to three b…
When does a Fermi puddle become a Fermi sea? Emergence of pairing in two-dimensional trapped mesoscopic Fermi gases
Emma K. Laird, Brendan C. Mulkerin, Jia Wang +1
Pairing lies at the heart of superfluidity in fermionic systems. Motivated by recent experiments in mesoscopic Fermi gases, we study up to six fermionic atoms with equal masses and…
Rabi oscillations and magnetization of a mobile spin-1/2 impurity in a Fermi sea
Brendan C. Mulkerin, Jesper Levinsen, Meera M. Parish
We investigate the behavior of a mobile spin-1/2 impurity atom immersed in a Fermi gas, where the interacting spin- and non-interacting spin- states of the im…
Pseudopotentials for Two-dimentional Ultracold Scattering in the Presence of Synthetic Spin-orbit-coupling
Christiaan R. Hougaard, Brendan C. Mulkerin, Xia-Ji Liu +2
We derive a pseudopotential in two dimensions (2D) with the presence of a 2D Rashba spin-orbit-coupling (SOC), following the same spirit of frame transformation in {[}Phys. Rev. A…
Beyond Gaussian pair fluctuation theory for strongly interacting Fermi gases II: The broken-symmetry phase
Brendan C. Mulkerin, Xing-Can Yao, Yoji Ohashi +2
We theoretically study the thermodynamic properties of a strongly interacting Fermi gas at the crossover from a Bardeen-Cooper-Schrieffer (BCS) superfluid to a Bose-Einstein conden…
Arbitrary-angle rotation of the polarization of a dipolar Bose-Einstein condensate
S. B. Prasad, B. C. Mulkerin, A. M. Martin
We have employed the theory of harmonically trapped dipolar Bose-Einstein condensates to examine the influence of a uniform magnetic field that rotates at an arbitrary angle to its…
Stationary states, dynamical stability, and vorticity of Bose-Einstein condensates in tilted rotating harmonic traps
Srivatsa B. Prasad, Brendan C. Mulkerin, Andrew M. Martin
We theoretically investigate a Bose-Einstein condensate confined by a rotating harmonic trap whose rotation axis is not aligned with any of its principal axes. The principal axes o…
Pseudogap regime of a strongly interacting two-dimensional Fermi gas with and without confinement-induced effect range of interactions
Brendan C. Mulkerin, Xia-Ji Liu, Hui Hu
We investigate theoretically the many-body pairing of a strongly correlated two-dimensional Fermi gas with and without negative confinement-induced effective range. Using a strong-…
Role of the confinement-induced effective range on the thermodynamics of a strongly correlated Fermi gas in two dimensions
Brendan C. Mulkerin, Hui Hu, Xia-Ji Liu
We theoretically investigate the thermodynamic properties of a strongly correlated two-dimensional Fermi gas with a confinement-induced negative effective range of interactions, wh…
Vortex Lattice Formation in Dipolar Bose-Einstein Condensates via Rotation of the Polarization
Srivatsa B. Prasad, Thomas Bland, Brendan C. Mulkerin +2
The behaviour of a harmonically trapped dipolar Bose-Einstein condensate with its dipole moments rotating at angular frequencies lower than the transverse harmonic trapping frequen…
Leggett mode in a two-component Fermi gas with dipolar interactions
Brendan C. Mulkerin, Xia-Ji Liu, Hui Hu
We develop an effective field theory to understand collective modes of a three-dimensional two-component Fermi superfluid with dipolar inter-particle interactions, which are modele…
Quantum fluctuations of a resonantly interacting -wave Fermi superfluid in two dimensions
Hui Hu, Brendan C. Mulkerin, Lianyi He +2
Using the Gaussian pair fluctuation theory, we investigate quantum fluctuations of a strongly interacting two-dimensional chiral \textit{p}-wave Fermi superfluid at the transition…
Breakdown of the Fermi polaron description near Fermi degeneracy at unitarity
Brendan C. Mulkerin, Xia-Ji Liu, Hui Hu
We theoretically investigate attractive Fermi polarons in three dimensions at finite temperature and impurity concentration through the many-body T-matrix theory and high-temperatu…
Reduced quantum anomaly in a quasi-2D Fermi superfluid: The significance of the confinement-induced effective range of interactions
Hui Hu, Brendan C. Mulkerin, Umberto Toniolo +2
A two-dimensional (2D) harmonically trapped interacting Fermi gas is anticipated to exhibit a quantum anomaly and possesses a breathing mode at frequencies different from a classic…
Breathing mode frequency of a strongly interacting Fermi gas across the 2D-3D dimensional crossover
Umberto Toniolo, Brendan C. Mulkerin, Xia-Ji Liu +1
We address the interplay between dimension and quantum anomaly on the breathing mode frequency of a strongly interacting Fermi gas harmonically trapped at zero temperature. Using a…
Ultra-cold Collisions between Spin-Orbit-Coupled Dipoles: General Formalism and Universality
Jia Wang, Christiaan R. Hougaard, Brendan C. Mulkerin +1
A theoretical study of the low-energy scattering properties of two aligned identical bosonic and fermionic dipoles in the presence of isotropic spin-orbit coupling (SOC) is present…
Collective modes of a two-dimensional Fermi gas at finite temperature
Brendan C. Mulkerin, Xia-Ji Liu, Hui Hu
In this work we examine the breathing mode of a strongly interacting two-dimensional Fermi gas and the role of temperature on the anomalous breaking of scale invariance. By calcula…
Attractive Fermi polarons at nonzero temperature with finite impurityconcentration
Hui Hu, Brendan C. Mulkerin, Jia Wang +1
We theoretically investigate how quasi-particle properties of an attractive Fermi polaron are affected by nonzero temperature and finite impurity concentration. By applying both no…
Superfluid density and critical velocity near the fermionic Berezinskii-Kosterlitz-Thouless transition
Brendan C. Mulkerin, Lianyi He, Paul Dyke +3
We theoretically investigate superfluidity in a strongly interacting Fermi gas confined to two dimensions at finite temperature. Using a Gaussian pair fluctuation theory in the sup…
Dimensional crossover in a strongly interacting ultracold atomic Fermi gas
Umberto Toniolo, Brendan C. Mulkerin, Chris J. Vale +2
We theoretically explore the crossover from three dimensions (3D) to two (2D) in a strongly interacting atomic Fermi superfluid through confining the transverse spatial dimension.…
Larkin-Ovchinnikov superfluidity in a two-dimensional imbalanced atomic Fermi gas
Umberto Toniolo, Brendan Mulkerin, Xia-Ji Liu +1
We present an extensive study of two-dimensional Larkin-Ovchinnikov (LO) superfluidity in a spin-imbalanced two-component atomic Fermi gas. In the context of Fulde-Ferrell-Larkin-…