Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Renormalization group analysis of dipolar Heisenberg model on square lattice
Download
index.pdf
Date
2018-06-01
Author
Keleş, Ahmet
Zhao, Erhai
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
13
views
17
downloads
Cite This
We present a detailed functional renormalization group analysis of spin-1/2 dipolar Heisenberg model on square lattice. This model is similar to the well-known J(1)-J(2) model and describes the pseudospin degrees of freedom of polar molecules confined in deep optical lattice with long-range anisotropic dipole-dipole interactions. Previous study of this model based on tensor network ansatz indicates a paramagnetic ground state for certain dipole tilting angles which can be tuned in experiments to control the exchange couplings. The tensor ansatz formulated on a small cluster unit cell is inadequate to describe the spiral order, and therefore the phase diagram at high azimuthal tilting angles remains undetermined. Here, we obtain the full phase diagram of the model from numerical pseudofermion functional renormalization group calculations. We show that an extended quantum paramagnetic phase is realized between the Neel and stripe/spiral phases. In this region, the spin susceptibility flows smoothly down to the lowest numerical renormalization group scales with no sign of divergence or breakdown of the flow, in sharp contrast to the flow towards the long-range-ordered phases. Our results provide further evidence that the dipolar Heisenberg model is a fertile ground for quantum spin liquids.
Subject Keywords
QUANTUM SIMULATOR
,
POLAR-MOLECULES
,
SPINS
,
GAS
URI
https://hdl.handle.net/11511/34517
Journal
PHYSICAL REVIEW B
DOI
https://doi.org/10.1103/physrevb.97.245105
Collections
Department of Physics, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Keleş and E. Zhao, “Renormalization group analysis of dipolar Heisenberg model on square lattice,”
PHYSICAL REVIEW B
, vol. 97, no. 24, pp. 0–0, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34517.