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Failure of Gutzwiller-type wave function to capture gauge fluctuations: Case study in the exciton Bose liquid context

Tay, Tiamhock and Motrunich, Olexei I. (2011) Failure of Gutzwiller-type wave function to capture gauge fluctuations: Case study in the exciton Bose liquid context. Physical Review B, 83 (23). Art. No. 235122. ISSN 1098-0121. https://resolver.caltech.edu/CaltechAUTHORS:20110624-094212541

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Abstract

Slave particle approaches are widely used in studies of exotic quantum phases. A complete description beyond mean field also contains dynamical gauge fields, while a simplified procedure considers Gutzwiller-projected trial states. We apply this in the context of bosonic models with ring exchanges realizing so-called exciton Bose liquid (EBL) phase and compare a Gutzwiller wave function against an accurate EBL wave function. We solve the parton-gauge theory and show that dynamical fluctuations of the spatial gauge fields are necessary for obtaining qualitatively accurate EBL description. On the contrary, just the Gutzwiller projection leads to a state with subtle differences in the long-wavelength properties, thus suggesting that Gutzwiller wave functions may generally fail to capture long-wavelength physics.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.83.235122DOIArticle
http://prb.aps.org/abstract/PRB/v83/i23/e235122PublisherArticle
ORCID:
AuthorORCID
Motrunich, Olexei I.0000-0001-8031-0022
Additional Information:© 2011 American Physical Society. Received 26 December 2010; revised 8 April 2011; published 13 June 2011. We would like to thank M. P. A. Fisher formany inspirations leading to this project and R. Kaul, M. Hastings, and A. Paramekanti for discussions. The research is supported by the NSF through Grant No. DMR-0907145 and the A. P. Sloan Foundation.
Funders:
Funding AgencyGrant Number
NSFDMR-0907145
Alfred P. Sloan FoundationUNSPECIFIED
Issue or Number:23
Classification Code:PACS: 71.10.Pm, 75.10.Jm, 75.40.Mg
Record Number:CaltechAUTHORS:20110624-094212541
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110624-094212541
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24193
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Jun 2011 20:11
Last Modified:03 Oct 2019 02:54

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