94 citations · 279 across the 17 of their papers we have counts for
12 papers
Kondo Effects in Carbon Nanotubes: From SU(4) to SU(2) symmetry
Jong Soo Lim, Mahn-Soo Choi, M. Y. Choi +2
We study the Kondo effect in a single-electron transistor device realized in a single-wall carbon nanotube. The K-K' double orbital degeneracy of a nanotube, which originates from…
Anomalous Transmission Phase of a Kondo-Correlated Quantum Dot
Kicheon Kang, M. -S. Choi, S. Lee
We study phase evolution of transmission through a quantum dot with Kondo correlations. By considering a model that includes nonresonant transmission as well as the Anderson impuri…
Shot noise for resonant Cooper pair tunneling
Mahn-Soo Choi, Francesco Plastina, Rosario Fazio
We study intrinsic noise of current in a superconducting single-electron transistor, taking into account both coherence effects and Coulomb interaction near a Cooper-pair resonance…
Spatiotemporal Stochastic Resonance in Fully Frustrated Josephson Ladders
Beom Jun Kim, Mahn-Soo Choi, Petter Minnhagen +3
We consider a Josephson-junction ladder in an external magnetic field with half flux quantum per plaquette. When driven by external currents, periodic in time and staggered in spac…
Charge Frustration Effects in Capacitively Coupled Two-Dimensional Josephson-Junction Arrays
Minchul Lee, Mahn-Soo Choi, M. Y. Choi
We investigate the quantum phase transitions in two capacitively coupled two-dimensional Josephson-junction arrays with charge frustration. The system is mapped onto the S=1 and $S…
Quantum phase transitions in superconducting arrays under external magnetic fields
Beom Jun Kim, Gun Sang Jeon, M. -S. Choi +1
We study the zero-temperature phase transitions of two-dimensional superconducting arrays with both the self- and the junction capacitances in the presence of external magnetic fie…