Quantum phase transitions and persistent currents in Josephson-junction ladders

Minchul Lee, Mahn-Soo Choi, M. Y. Choi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work we study quantum phase transitions and persistent currents in capacitively coupled one-dimensional Josephson-junction arrays. We will focus particularly on the roles of excitonlike pairs in the strong-coupling limit in the presence of external gate charges and magnetic fluxes. We use the numerical density-matrix renormalization group method for the study in the full range of values of gate charge and magnetic flux. To clarify the various effects, we report the pair correlation functions and exciton densities as well as the persistent current.

Original languageEnglish
Article number144506
Pages (from-to)1445061-14450611
Number of pages13005551
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number14
Publication statusPublished - 2003 Oct 1

Fingerprint

Ladders
Magnetic flux
ladders
Josephson junctions
magnetic flux
Phase transitions
renormalization group methods
Excitons
excitons
LDS 751

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Quantum phase transitions and persistent currents in Josephson-junction ladders. / Lee, Minchul; Choi, Mahn-Soo; Choi, M. Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 68, No. 14, 144506, 01.10.2003, p. 1445061-14450611.

Research output: Contribution to journalArticle

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