Fractional charge and emergent mass hierarchy in diagonal two-leg cylinders
Abstract
Here, we define a class of “diagonal” t $$-$$ J ladders rotated by π / 4 relative to the canonical lattice directions of the square lattice, and study it using density matrix renormalization group. Here, we focus on the two-leg cylinder with a doped hole concentration near x = $$\frac{1}{4}$$ . At exactly x = $$\frac{1}{4}$$, the system forms a period 4 charge density wave and exhibits spin-charge separation. Slightly away from $$\frac{1}{4}$$ doping, we observe several topologically distinct types of solitons with well-defined fractionalized quantum numbers. Remarkably, given the absence of any obvious small parameter, the effective masses of the emergent solitons differ by several orders of magnitude.
- Authors:
-
- Tsinghua Univ., Beijing (China). Inst. for Advanced Study; Stanford Univ., CA (United States). Dept. of Physics
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
- Tsinghua Univ., Beijing (China). Inst. for Advanced Study; Collaborative Innovation Center of Quantum Matter, Beijing (China)
- Stanford Univ., CA (United States). Dept. of Physics
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Natural Science Foundation of China (NSFC)
- OSTI Identifier:
- 1369403
- Alternate Identifier(s):
- OSTI ID: 1361571
- Grant/Contract Number:
- 11474175; AC02-76SF00515; DMR 1265593
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 24; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; density waves; spin chains
Citation Formats
Jiang, Yi-Fan, Jiang, Hong-Chen, Yao, Hong, and Kivelson, Steven A. Fractional charge and emergent mass hierarchy in diagonal two-leg t–J cylinders. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.245105.
Jiang, Yi-Fan, Jiang, Hong-Chen, Yao, Hong, & Kivelson, Steven A. Fractional charge and emergent mass hierarchy in diagonal two-leg t–J cylinders. United States. https://doi.org/10.1103/PhysRevB.95.245105
Jiang, Yi-Fan, Jiang, Hong-Chen, Yao, Hong, and Kivelson, Steven A. Tue .
"Fractional charge and emergent mass hierarchy in diagonal two-leg t–J cylinders". United States. https://doi.org/10.1103/PhysRevB.95.245105. https://www.osti.gov/servlets/purl/1369403.
@article{osti_1369403,
title = {Fractional charge and emergent mass hierarchy in diagonal two-leg t–J cylinders},
author = {Jiang, Yi-Fan and Jiang, Hong-Chen and Yao, Hong and Kivelson, Steven A.},
abstractNote = {Here, we define a class of “diagonal” t $-$ J ladders rotated by π / 4 relative to the canonical lattice directions of the square lattice, and study it using density matrix renormalization group. Here, we focus on the two-leg cylinder with a doped hole concentration near x = $\frac{1}{4}$ . At exactly x = $\frac{1}{4}$, the system forms a period 4 charge density wave and exhibits spin-charge separation. Slightly away from $\frac{1}{4}$ doping, we observe several topologically distinct types of solitons with well-defined fractionalized quantum numbers. Remarkably, given the absence of any obvious small parameter, the effective masses of the emergent solitons differ by several orders of magnitude.},
doi = {10.1103/PhysRevB.95.245105},
journal = {Physical Review B},
number = 24,
volume = 95,
place = {United States},
year = {Tue Jun 06 00:00:00 EDT 2017},
month = {Tue Jun 06 00:00:00 EDT 2017}
}
Web of Science
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