Quantum spin transistor with a Heisenberg spin chain

Abstract

We propose and analyze a scheme for conditional state transfer in a Heisenberg $XXZ$ spin chain which realizes a quantum spin transistor. In our scheme, the absence or presence of a control spin excitation in the central gate part of the spin chain results in either perfect transfer of an arbitrary state of a target spin between the weakly coupled input and output ports, or its complete blockade at the input port. We also present a possible realization of the corresponding spin chain with a one-dimensional ensemble of cold atoms with strong contact interactions.

36 pages, 3 figures, including supplements. See journal reference below for refereed and revised version

References in corpus (5)

• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
• Quantum Communication through Spin Chain Dynamics: an Introductory Overview
• Two Fermions in a double well: Exploring a fundamental building block of the Hubbard model
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Cited by in corpus (5)

• Factorization and criticality in finite XXZ systems of arbitrary spin
• Strongly Interacting One-Dimensional Systems with Small Mass Imbalance
• Native three-body interaction in superconducting circuits
• A coherent router for quantum networks
• Dynamical realization of magnetic states in a strongly interacting Bose mixture