Creating p-wave superfluids and topological excitations in optical lattices

Abstract

We propose to realize a p-wave superfluid using bosons mixed with a single species of fermions in a deep optical lattice. We analyze with a self-consistent method its excitation spectrum in presence of a vortex, and we point out the range of interaction strengths in which the zero-energy mode with topological character exists on a finite optical lattice. Lattice effects are strongest close to fermionic half-filling: here the linearity of the low-lying spectrum is lost, and a new class of extended zero-energy modes with checkerboard structure and d-wave symmetry appears.

Published version

References in corpus (19)

• Many-Body Physics with Ultracold Gases
• Non-Abelian Anyons and Topological Quantum Computation
• Theory of ultracold Fermi gases
• Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
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• Engineering Superfluidity in Bose-Fermi Mixtures of Ultracold Atoms
• Near zero modes in condensate phases of the Dirac theory on the honeycomb lattice
• Translation-symmetry protected topological orders on lattice
• Stabilization of the p-wave superfluid state in an optical lattice
• Ground state cooling of atoms in optical lattices
• Predicted signatures of p-wave superfluid phases and Majorana zero modes of fermionic atoms in RF absorption
• Strongly Interacting Two-Dimensional Dirac Fermions

Cited by in corpus (29)

• Spin-orbit coupling in quantum gases
• Topological Quantum Matter with Ultracold Gases in Optical Lattices
• Topological quantum matter with cold atoms
• The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
• Topological Massive Dirac Edge Modes and Long-Range Superconducting Hamiltonians
• Quantum phase diagram of the integrable p_x+ip_y fermionic superfluid
• Majorana modes and $p$-wave superfluids for fermionic atoms in optical lattices
• Topological p_x+ip_y Superfluid Phase of Fermionic Polar Molecules
• Spin Orbit Coupling in Periodically Driven Optical Lattices
• Topological superfluid in a Fermi-Bose mixture with a high critical temperature
• Vortex structures and zero energy states in the BCS-to-BEC evolution of p-wave resonant Fermi gases
• Topological superfluids on a lattice with non-Abelian gauge fields
• P-wave superfluidity of atomic lattice fermions
• Nanoplasmonic planar traps - a tool for engineering p-wave interactions
• Seeing Majorana fermions in time-of-flight images of spinless fermions coupled by s-wave pairing
• Topological superfluidity of lattice fermions inside a Bose-Einstein condensate
• Zero Energy Modes and Statistics of Vortices in Spinful Chiral p-Wave Superfluids
• Topological quantum phase transitions of attractive spinless fermions in a honeycomb lattice
• Stable p-wave resonant two-dimensional Fermi-Bose dimers
• Equilibrium Surface Current and Role of U(1) Symmetry: sum rule and surface perturbations
• Tunable boson-assisted finite-range interaction and engineering Majorana corner modes in optical lattices
• Counterflow superfluid of polaron pairs in Bose-Fermi mixtures in optical lattices
• p-wave superfluidity in mixtures of ultracold Fermi and spinor Bose gases
• Realizing Universal Majorana Fermionic Quantum Computation
• Mott criticality and pseudogap in Bose-Fermi mixtures
• Stabilizing Topological Superfluidity of Lattice Fermions
• Synthesis of Majorana mass terms in low-energy quantum systems
• Superfluidity of identical fermions in an optical lattice: atoms and polar molecules
• Embedding 1D BDI topological dynamics into continuous elastic plates