Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication Related

Topics

Quantum Simulation

Quantum mechanical treatment of large spin baths

arXiv
Authors: Robin Röhrig, Philipp Schering, Lars B. Gravert, Benedikt Fauseweh, Götz S. Uhrig

Year

2017

Paper ID

24930

Status

Preprint

Abstract Read

~2 min

Abstract Words

130

Citations

N/A

Abstract

The electronic spin in quantum dots can be described by central spin models (CSMs) with a very large number Neff approx 104 to 106 of bath spins posing a tremendous challenge to theoretical simulations. Here, a fully quantum mechanical theory is developed for the limit Neff → infty by means of iterated equations of motion (iEoM). We find that the CSM can be mapped to a four-dimensional impurity coupled to a non-interacting bosonic bath in this limit. Remarkably, even for infinite bath the CSM does not become completely classical. The data obtained by the proposed iEoM approach is tested successfully against data from other, established approaches. Thus, the iEoM mapping extends the set of theoretical tools which can be used to understand the spin dynamics in large CSMs.

Why This Paper Matters

  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • The electronic spin in quantum dots can be described by central spin models (CSMs) with a very large number Neff approx 10^4 to 10^6 of bath spins posing a tremendous challenge...

Paper Tools

Become a member to use research tools

Sign in to open papers, visit source links, share, cite, compare, copy DOI links, request category corrections, and build your reading list.

Become a member Sign in
Show Paper arXiv Publisher Share Cite This Paper Copy URL Compare Copy DOI Add to Reading List Category Correction Request

References & Citation Signals

[1] DOI https://doi.org/arXiv:1711.08919 [2] arXiv https://arxiv.org/abs/1711.08919 [3] Publisher https://arxiv.org/abs/1711.08919

Local Citation Graph (Related-Paper Links)

Current Paper #24930 #78846 Analog quantum simulation of Sh... #78810 Secure Quantum Handshakes: Quan... #78802 Quantum Co-Design of Inhomogene... #78801 Constructing Large and Structur...

External citation index: OpenAlex citation signal

Community Reactions

Quick sentiment from readers on this paper.

Score: 0
Likes: 0 Dislikes: 0

Sign in to react to this paper.

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.