Probing Quantum Phase Transitions on a Spin Chain with a Double Quantum Dot
classification
❄️ cond-mat.mes-hall
quant-ph
keywords
quantumchaindoubleentanglementphaseprobeqptsspin
pith:MBGWVAWD Add to your LaTeX paper
What is a Pith Number?\usepackage{pith}
\pithnumber{MBGWVAWD}
Prints a linked pith:MBGWVAWD badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more
read the original abstract
Quantum phase transitions (QPTs) in qubit systems are known to produce singularities in the entanglement, which could in turn be used to probe the QPT. Current proposals to measure the entanglement are challenging however, because of their nonlocal nature. Here we show that a double quantum dot coupled locally to a spin chain provides an alternative and efficient probe of QPTs. We propose an experiment to observe a QPT in a triple dot, based on the well-known singlet projection technique.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.