Manipulating Majorana fermions in one-dimensional spin-orbit coupled atomic Fermi gases

Abstract

Majorana fermions are promising candidates for storing and processing information in topological quantum computation. The ability to control such individual information carriers in trapped ultracold atomic Fermi gases is a novel theme in quantum information science. However, fermionic atoms are neutral and thus are difficult to manipulate. Here, we theoretically investigate the control of emergent Majorana fermions in one-dimensional spin-orbit coupled atomic Fermi gases. We discuss (i) how to move Majorana fermions by increasing or decreasing an effective Zeeman field, which acts like a solid state control voltage gate; and (ii) how to create a pair of Majorana fermions by adding a magnetic impurity potential. We discuss the experimental realization of our control scheme in an ultracold Fermi gas of ${}^{40}$K atoms.

4 papges, 6 figures

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Cited by in corpus (19)

• Light-induced gauge fields for ultracold atoms
• Realization of 2D Spin-orbit Interaction and Exotic Topological Orders in Cold Atoms
• Transport signatures of Floquet Majorana fermions in driven topological superconductors
• On controlling the bound states in quantum-dot hybrid-nanowire
• Symmetry Protected Topological Superfluid ${}^3$He-B
• Topological phases of quasi-one-dimensional fermionic atoms with a synthetic gauge field
• Magnetic field dependence of Raman coupling in Alkali atoms
• Spin-orbit-coupled topological Fulde-Ferrell states of fermions in a harmonic trap
• Phase space methods for Majorana fermions
• Simulating artificial one-dimensional physics with ultra-cold fermionic atoms: three exemplary themes
• Probing the chirality of 1D Majorana edge states around a 2D nanoflake in a superconductor
• Quantum engineering of Majorana quasiparticles in one-dimensional optical lattices
• Weyl spin-orbit-coupling-induced interactions in uniform and trapped atomic quantum fluids
• Nested Defects on the Boundary of Topological Superconductors
• Coexistence of topological and nontopological Fermi-superfluid phases
• Route to observing topological edge modes in ultracold fermions
• Majorana bound states in the presence of the half-smeared potential
• Interfacing a topological qubit with a spin qubit in a hybrid quantum system
• Identification of the Majorana edge modes in tight-binding systems based on the Krylov method