Effective charge of a deconfined slave particle: Comment on ``Confinement of Slave Particles in U(1) Gauge Theories of Strongly Interacting Electrons''

Details Effective charge of a deconfined slave particle: Comment on ``Confinement of Slave Particles in U(1) Gauge Theories of Strongly Interacting Electrons'' Effective charge of a deconfined slave particle: Comment on ``Confinement of Slave Particles in U(1) Gauge Theories of Strongly Interacting Electrons''

2002-09-17

arxiv.org/abs/cond-mat/0209417v1

Phys. Rev. Lett. 91, 199701 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

1 page, REVTEX4

Scientific paper

10.1103/PhysRevLett.91.199701

I reexamine the Nayak's criticism [Phys. Rev. Lett. 85, 178 (2000); 86, 943 (2001).] on the U(1) gauge theory approach to the strongly correlated systems. Contrary to his conclusion, the arbitrariness of the charge assignment observed by him does not contradict the possibility of a deconfinement. Should the deconfinement occur, the deconfined slave particle carries an effective fractional charge, which is independent of the arbitrary assignment but is rather determined dynamically.

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