Harnessing the Quantum Behavior of Spins on Surfaces
- URL: http://arxiv.org/abs/2112.14473v1
- Date: Wed, 29 Dec 2021 09:47:06 GMT
- Title: Harnessing the Quantum Behavior of Spins on Surfaces
- Authors: Yi Chen, Yujeong Bae, Andreas J. Heinrich
- Abstract summary: Single atoms and molecules on surfaces are investigated by physicists, chemists, and material scientists in search of novel electronic and magnetic functionalities.
In 2015, it was first clearly demonstrated that individual spins on a surface can be coherently controlled and read out in an all-electrical fashion.
This review aims to illustrate the essential ingredients that allow the quantum operations of single spins on surfaces.
- Score: 5.934931737701265
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The desire to control and measure individual quantum systems such as atoms
and ions in a vacuum has led to significant scientific and engineering
developments in the past decades that form the basis of today's quantum
information science. Single atoms and molecules on surfaces, on the other hand,
are heavily investigated by physicists, chemists, and material scientists in
search of novel electronic and magnetic functionalities. These two paths
crossed in 2015 when it was first clearly demonstrated that individual spins on
a surface can be coherently controlled and read out in an all-electrical
fashion. The enabling technique is a combination of scanning tunneling
microscopy (STM) and electron spin resonance (ESR), which offers unprecedented
coherent controllability at the Angstrom length scale. This review aims to
illustrate the essential ingredients that allow the quantum operations of
single spins on surfaces. Three domains of applications of surface spins,
namely quantum sensing, quantum control, and quantum simulation, are discussed
with physical principles explained and examples presented. Enabled by the
atomically-precise fabrication capability of STM, single spins on surfaces
might one day lead to the realization of quantum nanodevices and artificial
quantum materials at the atomic scale.
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