422 citations · 446 across the 10 of their papers we have counts for
10 papers
Vortex description of the fractionalized phase in exciton bose condensate
Sung-Sik Lee, T. Senthil, Patrick A. Lee
As a sequel to the previous work [Phys. Rev. B 72, 235104 (2005)] we present a vortex description of the fractionalized phase in exciton bose condensate. Magnetic flux line and mon…
Emergent U(1) gauge theory with fractionalized boson/fermion from the bose condensation of exciton in multi-band insulator
Sung-Sik Lee, Patrick A. Lee
Fractionalized phases are studied in a low energy theory of exciton bose condensate in a multi-band insulator. It is shown that U(1) gauge theory with either fractionalized boson o…
U(1) Gauge Theory of the Hubbard Model : Spin Liquid States and Possible Application to k-(BEDT-TTF)_2 Cu_2 (CN)_3
Sung-Sik Lee, Patrick A. Lee
We formulate a U(1) gauge theory of the Hubbard model in the slave-rotor representation. From this formalism it is argued that spin liquid phases may exist near the Mott transition…
Quantum phase transitions in superconductors
Ki-Seok Kim, Sung-Sik Lee, Jae-Hyeon Eom +1
Based on an effective Lagrangian obtained from the holon-pair boson theory of Lee and Salk [Phys. Rev. B {\bf 64}, 052501 (2001)] for high cuprates, we explore physical state…
Absence of time-reversal symmetry breaking in association with the order parameter of Cooper pair in high superconductivity
Sung-Sik Lee, Ki-Seok Kim, Jae-Hyun Eom +1
As an extension of our previous work on the holon pairing instability in the t-J Hamiltonian [Phys. Rev. B {\bf 66}, 054427 (2002)], we examine the orbital symmetries of holon pair…
Scaling behavior in the optical conductivity of the two dimensional systems of strongly correlated electrons based on the U(1) slave-boson approach to the t-J Hamiltonian
Jae-Hyeon Eom, Sung-Sik Lee, Ki-Seok Kim +1
The U(1) holon-pair boson theory of Lee and Salk(Phys. Rev. B 64, 052501 (2001)) is applied to investigate the quantum scaling behavior of optical conductivity in the two dimension…