1D topological chains with Majorana fermions in 2D non-topological optical lattices
arXiv:1503.01810 · doi:10.1103/PhysRevA.93.063614
Abstract
The recent experimental realization of 1D equal Rashba-Dresselhaus spin-orbit coupling (ERD-SOC) for cold atoms provide a disorder-free platform for the implementation and observation of Majorana fermions (MFs), similar to the well studied solid state nanowire/superconductor heterostructures. However, the corresponding 1D chains of cold atoms possess strong quantum fluctuation, which may destroy the superfluids and MFs. In this Letter, we show that such 1D topological chains with MFs may be on demand generated in a 2D non-topological optical lattice with 1D ERD-SOC by modifying local potentials on target locations using experimentally already implemented atomic gas microscopes or patterned (e.g., double or triple well) optical lattices. All ingredients in our scheme have been experimentally realized and the combination of them may pave the way for the experimental observation of MFs in a clean system.
6 pages, 6 figures
References in corpus (28)
- Non-Abelian Anyons and Topological Quantum Computation
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Classification of topological insulators and superconductors in three spatial dimensions
- Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
- Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
- Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
- Topological Defects and Gapless Modes in Insulators and Superconductors
- Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
- Non-Abelian Topological Order in S-Wave Superfluids of Ultracold Fermionic Atoms
- Single-Spin Addressing in an Atomic Mott Insulator
- Single-atom imaging of fermions in a quantum-gas microscope
- A Quantum Gas Microscope for Fermionic Atoms
- superfluid from s-wave interactions of fermionic cold atoms
- A lattice of double wells for manipulating pairs of cold atoms
- Zero-bias anomaly in a nanowire quantum dot coupled to superconductors
- A Majorana smoking gun for the superconductor-semiconductor hybrid topological system
- Experimental demonstration of single-site addressability in a two-dimensional optical lattice
- Manipulating Topological Edge Spins in One-Dimensional Optical Lattice
- Probing non-Abelian statistics of Majorana fermions in ultracold atomic superfluid
- Theory of quasi-one dimensional imbalanced Fermi gases
- Topological minigap in quasi-one-dimensional spin-orbit-coupled semiconductor Majorana wires
- Majorana fermions in one-dimensional spin-orbit coupled Fermi gases
- Spin-orbit-coupled topological Fulde-Ferrell states of fermions in a harmonic trap
- An experimental proposal to observe non-abelian statistics of Majorana-Shockley fermions in an optical lattice