Bosons, gauge fields, and high-T{sub c} cuprates

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.55.591· OSTI ID:434307

Kim, D H; Lee, D K; Lee, P A ^[1]

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1. Department of Physics, Massachussetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

A simple model of a degenerate two-dimensional Bose liquid interacting with a fluctuating gauge field is investigated as a possible candidate to describe the charge degree of freedom in the normal state of the cuprate superconductors. We show that the fluctuating gauge field efficiently destroys superfluidity even in the Bose degenerate regime. We discuss the nature of the resulting normal state in terms of the geometric properties of the imaginary-time paths of the bosons. We will also present numerical results on the transport properties and the density correlations in the system. We find a transport scattering rate of {h_bar}/{tau}{sub tr}{approximately}2k{sub B}T, consistent with the experiments on the cuprates in the normal state. We also find that the density correlations of our model resemble the charge correlations of the t-J model. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 434307
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 1 Vol. 55; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOSE-EINSTEIN GAS
COMPUTERIZED SIMULATION
CUPRATES
ELECTRIC CONDUCTIVITY
ELECTRONIC STRUCTURE
FERMI GAS
GAUGE INVARIANCE
HIGH-TC SUPERCONDUCTORS
MONTE CARLO METHOD
OPTICAL PROPERTIES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS