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Theory of ultracold Fermi gases
Rev. Mod. Phys. 80, 1215 (2008), arXiv:0706.3360
Lattice simulations for few- and many-body systems
Prog. Part. Nucl. Phys. 63, 117, 2009, arXiv:0804.3501
Low-energy collective excitations in a superfluid trapped Fermi gas
Phys. Rev. A 62, 041601 (2000), arXiv:cond-mat/9901108
Includes calculation of collective oscillations from superfluid hydrodynamics in the Thomas-Fermi limit.
Vortex State in a Strongly Coupled Dilute Atomic Fermionic Superfluid
Phys. Rev. Lett. 91, 190404 (2003), arXiv:cond-mat/0303235
Collective oscillations of a trapped superfluid Fermi gas near a Feshbach resonance
Europhys. Lett. 65, 749 (2004), arXiv:cond-mat/0312614
Collective Oscillations of a Trapped Fermi Gas near the Unitary Limit
Phys. Rev. Lett. 94, 070401 (2005), arXiv:cond-mat/0404687
Cold Strongly Coupled Atoms Make a Near-perfect Liquid
Collective oscillations of a Fermi gas near a Feshbach resonance
Phys. Rev. A 72, 063614 (2005), arXiv:cond-mat/0508402
System is described by a fermion-boson Hamiltonian. Uses sum rules for a response function to find oscillation frequencies as functions of 1/kF a.
General coordinate invariance and conformal invariance in nonrelativistic physics: Unitary Fermi gas
Annals of Physics 321, 197 (2006), arXiv:cond-mat/0509786
Constructs an effective field theory for phonons up to next-to-leading order.
Vanishing bulk viscosities and conformal invariance of unitary Fermi gas
Phys. Rev. Lett. 98, 020604 (2007), arXiv:cond-mat/0511721
Nonrelativistic general coordinate invariance and conformal invariance implies the vanishing of the bulk viscosity in normal phase and 2 of the 3 bulk viscosities in the superfluid phase.
Acoustic attenuation probe for fermion superfluidity in ultracold atom gases
Shear viscosity and damping for a Fermi gas in the unitarity limit
Shear viscosity as a function of temperature above Tc in several approximations.
The Shear Viscosity to Entropy Density Ratio of Trapped Fermions in the Unitarity Limit
Extracts this quantity from experimental results.
Fermi liquid behavior and Luttinger's theorem close to a diverging scattering length
First and second sound modes at finite temperature in trapped Fermi gases from BCS to BEC
Dark solitons in a superfluid Fermi gas
Equilibrium and dynamics of a trapped superfluid Fermi gas with unequal masses
Quantum Fluctuations in the Superfluid State of the BCS-BEC Crossover
Tkachenko modes in a superfluid Fermi gas at unitarity
Resonance superfluidity in a quantum degenerate Fermi gas
Phys. Rev. Lett. 87, 120406 (2001), arXiv:cond-mat/0103479
High Temperature Expansion Applied to Fermions near Feshbach Resonance
Phys. Rev. Lett. 92, 160404 (2004), arXiv:cond-mat/0306187
Virial expansion for unitary Fermi gas.
Universal Thermodynamics of Degenerate Quantum Gases in the Unitarity Limit
Phys. Rev. Lett. 92, 090402 (2004), arXiv:cond-mat/0309109
On the specific heat of a fermionic atomic cloud in the unitary regime
Phys. Rev. Lett. 95, 140403 (2005), arXiv:cond-mat/0503024
Thermodynamics as a function of trap size and shape.
Virial Theorem and Universality in a Unitary Fermi Gas
Phys. Rev. Lett. 95, 120402 (2005), arXiv:cond-mat/0503620
Energetics of a strongly correlated Fermi gas
Annals of Physics 323, 2952 (2008), arXiv:cond-mat/0505200
The Virial Equation of State of Low-Density Neutron Matter
Phys. Lett. B638, 153 (2006), arXiv:nucl-th/0507064
Application of virial expansion to neutron matter (away from unitary regime).
Large momentum part of fermions with large scattering length
Annals of Physics 323, 2971 (2008), arXiv:cond-mat/0508320
Universality in a 2-component Fermi System at Finite Temperature
Phys. Rev. Lett. 98, 090403 (2007), arXiv:nucl-th/0604053
Model independent calculation of the third virial coefficient.
Universality in the BCS - BEC Crossover in Cold Fermion Gases
Finite temperature phase diagram, especially in the regime of narrow Feshbach resonance
Flow Equations for the BCS-BEC Crossover
Universal thermodynamics of strongly interacting Fermi gases
Exact renormalisation group flow for ultracold Fermi gases in unitary limit
Thermodynamics and superfluid density in BCS-BEC crossover with and without population imbalance
On Non-Relativistic Conformal Field Theory and Trapped Atoms: Virial Theorems and the State-Operator Correspondence in Three Dimensions
Generalized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas
Exact Relations for a Strongly-interacting Fermi Gas from the Operator Product Expansion
Phys. Rev. Lett. 100, 205301 (2008), arXiv:0803.1125
Virial theorem for confined universal Fermi gases
Superfluid Fermi gases with large scattering length
Phys. Rev. Lett. 91, 050401 (2003), physics/0303094
Fixed-node Green's function Monte Carlo. ξ = 0.44(1) + uncertainties due to initial state ansatz and fixed node approximation
Equation of state of a Fermi gas in the BEC-BCS crossover: a quantum Monte Carlo study
Phys. Rev. Lett. 93, 200404 (2004), arXiv:cond-mat/0406113
Diffusion Monte Carlo. ξ = 0.42(1) + uncertainties due to initial state ansatz and fixed node approximation
Truncated-determinant diagrammatic Monte Carlo for fermions with contact interaction
Phys. Rev. B 70, 193101 (2004), arXiv:cond-mat/0312108
Shows great speed-up of Hubbard model simulations.
Critical temperature for fermion pairing using lattice field theory
Exploratory calculation of phase transition between normal and superfluid matter near the unitary regime. Finds Tc/TF approx 0.04, but has uncertainties in scattering length and finite spacing effects.
Spin 1/2 Fermions on a 3D-Lattice in the Unitary Regime at Finite Temperatures
Phys. Rev. Lett. 96, 090404 (2006), arXiv:cond-mat/0505374
Tc/TF = 0.23(2) by finding a shoulders in E and S vs. T; ξ = 0.4
Cold dilute neutron matter on the lattice I: Lattice virial coefficients and large scattering lengths
Phys. Rev. C 73, 015201 (2006), arXiv:nucl-th/0509017
Cold dilute neutron matter on the lattice II: Results in the unitary limit
Phys. Rev. C 73, 015202 (2006), arXiv:nucl-th/0509018
Upper bound Tc/TF < 0.14.
Ground state energy of spin-1/2 fermions in the unitary limit
Phys. Rev. B 73, 115112 (2006), arXiv:cond-mat/0511332
ξ = 0.25(2). Maximum 22 particles.
Molecular signatures in the structure factor of an interacting Fermi gas
Density functional theory for fermions close to the unitary regime
Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
Phys. Rev. Lett. 96, 160402 (2006), arXiv:cond-mat/0602224
Uses a diagrammatic Monte Carlo algorithm to greatly speed up calculations of the attractive 3D Hubbard Model. Includes finite volume analysis and continuum limit: Tc/TF = 0.152(7).
The Fermi-Hubbard model at unitarity
Extended discussion of cond-mat/0602224.
Superfluidity and excitations at unitarity
Pairing and Superfluid Properties of Dilute Fermion Gases at Unitarity
Tc/TF = 0.25 using Restricted Path Integral Monte Carlo. They stress being able to work in the continuum, but have to use a fixed-node approximation.
Thermodynamics of a Trapped Unitary Fermi Gas
Phys. Rev. Lett. 99, 120401 (2007), arXiv:cond-mat/0701786
Unitary Fermi Gas in a Harmonic Trap
GFMC with 2 to 22 fermions in a harmonic trap.
Gap and Pseudogap of a Unitary Fermi Gas by Quantum Monte Carlo
Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
Phys. Rev. A
Large-N expansion for unitary superfluid Fermi gases
Phys. Rev. A 75, 043614 (2007), arXiv:cond-mat/0610798
The BCS - BEC Crossover In Arbitrary Dimensions
If spacial dimension is less than or equal 2, then ξ=1. If spacial dimension is greater than or equal 4, then xi is nonpositive. d=3 is special.
An epsilon expansion for Fermi gas at infinite scattering length
Phys. Rev. Lett. 97, 050403 (2006), arXiv:cond-mat/0604500
Expansion about 4 dimensions: ε = 4-d.
Polarized fermions in the unitarity limit
Fermi gas near unitarity around four and two spatial dimensions
Renormalization-group fixed points, universal phase diagram, and 1/N expansion for quantum liquids with interactions near the unitarity limit
Phys. Rev. A 75, 033608 (2007), arXiv:cond-mat/0609106
Phase Diagram of Cold Polarized Fermi Gas in Two Dimensions
BCS-BEC crossover with a finite-range interaction
Phys. Rev. B 71, 064513 (2005), arXiv:cond-mat/0410131
Resonant Fermi gases with a large effective range
Phys. Rev. Lett. 95, 160401 (2005), arXiv:nucl-th/0506042
Homogeneous Fermion Superfluid with Unequal Spin Populations
Transition from BCS pairing to Bose-Einstein condensation in low-density asymmetric nuclear matter
Phys. Rev. C 64, 064314 (2001), arXiv:nucl-th/0109024
Asymmetric Two-component Fermion Systems in Strong Coupling
Phys. Rev. Lett. 95, 060401 (2005), arXiv:cond-mat/0503256
Superfluid stability in BEC-BCS crossover
Phys. Rev. B 73, 132506 (2006), arXiv:cond-mat/0506437, Erratum Phys. Rev. B 74, 189901(E) (2006)
Mean field approach
Comment on "Superfluid stability in BEC-BCS crossover"
Phys. Rev. B 75, 136501 (2007), arXiv:cond-mat/0608172
Phase Diagram of Cold Polarized Fermi Gas
Phys. Rev. A 74, 013614 (2006), arXiv:cond-mat/0507586
BEC-BCS crossover in "magnetized" Feshbach-resonantly paired superfluids
Phys. Rev. Lett. 96, 060401, arXiv:cond-mat/0508430
Trapped fermions with density imbalance in the BEC limit
Phys. Rev. Lett. 96, 150404 (2006), arXiv:cond-mat/0512354
Finite size effects in cold asymmetrical fermion superfluids
Density profiles of an imbalance trapped Fermi gas near a Feshbach resonance
Phys. Rev. A 73, 051602(R) (2006), arXiv:cond-mat/0601314
Mean field theory calculation within local density approximation
Pairing of a trapped resonantly-interacting fermion mixture with unequal spin populations
Fermi surfaces and Luttinger's theorem in paired fermion systems
Phys. Rev. B 73, 174504 (2006), arXiv:cond-mat/0602032
Induced P-wave Superfluidity in Asymmetric Fermi Gases
Phys. Rev. Lett. 97, 020402 (2006), arXiv:cond-mat/0602274
Non-BCS superfluidity in trapped ultracold Fermi gases
Asymmetric Fermi Superfluid in a harmonic trap
J. Phys.: Condens. Matter 18, 5567 (2006), arXiv:cond-mat/0604530
Uses mean field theory and local density approximation.
Anomalous specific heat jump in a two-component ultracold Fermi gas
Finite temperature effects in trapped Fermi gases with population imbalance
Finite T effects within the local density approximation. Treats condensed and noncondensed pairs separately.
Zero Temperature Thermodynamics of Asymmetric Fermi Gases at Unitarity
Phys. Rev. A 75, 031605(R) (2007), arXiv:cond-mat/0606043
Sarma Phase in Trapped Unbalanced Fermi Gases
Phys. Rev. Lett. 97, 210402 (2006), arXiv:cond-mat/0606330
Superfluid phase diagrams of trapped Fermi gases with population imbalance
Imbalanced Superfluid Phase of a Trapped Fermi Gas in the BCS-BEC Crossover Regime
Breakdown of the Thomas Fermi approximation for polarized Fermi gases
Renormalization Group Theory for the Imbalanced Fermi Gas
Quantum Phase Transition for the BEC-BCS Crossover in Condensed Matter Physics and CPT Violation in Elementary Particle Physics
JETP Lett. 80, 343 (2004), arXiv:cond-mat/0407597
Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
Phys. Rev. Lett. 94, 090402 (2005), arXiv:cond-mat/0408468
Study of ground states with nonzero angular momentum with a 2-component fermion model.
BCS-BEC Crossover in a Gas of Fermi Atoms with a p-Wave Feshbach Resonance
Phys. Rev. Lett. 94, 050403 (2005), arXiv:cond-mat/0410516
Anisotropic Fermi Superfluid via p-Wave Feshbach Resonance
Phys. Rev. Lett. 95, 070404 (2005), arXiv:cond-mat/0504278
Many body exchange effects close to the s-wave Feshbach resonance in two-component Fermi systems: Is a triplet superfluid possible?
Evolution from BCS to BEC superfluidity in p-wave Fermi gases
Fermion model for P-wave superfluidity. Single hyperfine state in 3D. Zero and nonzero temperatures.
Pairing Symmetry in the Anisotropic Fermi Superfluid under p-wave Feshbach Resonance
Phys. Rev. B 73, 064517 (2006), arXiv:cond-mat/0601461
Possible Pairing without Superconductivity at Low Carrier Concentrations in Bulk and Thin-Film Superconducting Semiconductors
Cooper pairing in spin-polarized Fermi systems
J. Phys. (Paris) Colloq. 41, C7 (1980)
Crossover from BCS to Bose superconductivity: Transition temperature and time-dependent Ginzburg-Landau theory
Phys. Rev. Lett. 71, 3202 (1993).
Crossover from BCS theory to Bose-Einstein Condensation
in Bose-Einstein Condensation, eds. A. Griffin, D. W. Snoke, and S. Stringari, 355 (Cambridge University Press, 1995).
The MBX Challenge Competition: A Neutron Matter Model
Int. J. Mod. Phys. B 15, Nos. 10-11, 1314 (2001) and Phys. Rev. C 60, 054311 (1999)
At the 10th Int'l Conf. on Recent Progress in Many Body Theories, G. Bertsch offered a prize for determining the ground state properties of 2-component fermions interacting via a zero-range potential with infinite scattering length. Baker's paper won the prize.
Low-Energy Quantum Effective Action for Relativistic Superfluids
BCS-BEC crossover in relativistic superfluid and its possible realization in QCD
Phys. Rev. D 72, 096004 (2005), arXiv:hep-ph/0504083
More on dense QCD and color superconductivitity
How to Renormalize the Schroedinger Equation
Lecture notes on renormalization theory and effective field theory for nonrelativistic systems.
Two-Nucleon Systems from Effective Field Theory
Nucl. Phys. B 534, 329 (1998), arXiv:nucl-th/9802075
Pionless nuclear EFT at leading order also describes Fermionic atoms with large scattering lengths.
Universality in Few-body Systems with Large Scattering Length
Phys. Rep. 428, 259 (2006), arXiv:cond-mat/041017
Focuses on systems of few bosons
Effective Lagrangian and Topological Interactions in Supersolids
Phys. Rev. Lett. 94, 175301 (2005), arXiv:cond-mat/0501658
Pairing in Many-Fermion Systems: An Exact Renormalisation Group Treatment
Phys. Lett. B605, 287 (2005), arXiv:hep-ph/0406249
Functional Integral for Ultracold Fermionic Atoms
Nucl. Phys. B770, 206 (2007), arXiv:cond-mat/0510407
Effective field theory and cold Fermi gases near unitary limit
Renormalization Group Theory for the Imbalanced Fermi Gas