Related papers: Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope

Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope

URL: http://arxiv.org/abs/2408.06936v1
Date: Tue, 13 Aug 2024 14:45:46 GMT
Title: Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope
Authors: Diego Acosta Coden, Omar Osenda, Alejandro Ferrón,
Abstract summary: The electric control of quantum spin chains has been an outstanding goal for the few last years due to its potential use in technologies related to quantum information processing. We show the feasibility of the different steps necessary to perform controlled quantum state transfer in a $S=1/2$ titanium atoms chain employing the electric field produced by a Scanning Tunneling Microscope (STM)
Score: 44.99833362998488
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The electric control of quantum spin chains has been an outstanding goal for the few last years due to its potential use in technologies related to quantum information processing. In this work, we show the feasibility of the different steps necessary to perform controlled quantum state transfer in a $S=1/2$ titanium atoms chain employing the electric field produced by a Scanning Tunneling Microscope (STM). Our results show that the initialization and transmission of a single excitation state is achievable in short times, and with high fidelity. Our study uses spin Hamiltonians to model the magnetic atoms chain, the tip of the STM, the interaction between it and the atoms chain and the electronic response to the fields applied by the tip, employing sets of parameters compatible with the latest experiments and ab initio calculations. The time dynamical evolution is considered in the full Hilbert space and the control pulses frequencies exerted by the tip of the microscope are within the reach of present day technology.

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