Generalized Faraday law derived from classical forces in a rotating frame (2009)
We show the additional spin dependent classical force due to the rotation of an electron spin's rest frame is essential to derive a spin-Faraday law by using an analogy with the usual Faraday law....
Entanglement and Berry Phase in Two Interacting Qubits (2008)
Chen, Ai Min, Cho, Sam Young, Choi, Taeseung
Entanglement and Berry phase are investigated in two interacting qubit systems. The XXZ spin interaction model with a slowly rotating magnetic field is employed for the interaction between the two...
Entanglement of thermal scalar fields in a compact space space (2007)
Lee, Jae-Weon, Kim, Jaewan, Choi, Taeseung
Using the thermal Green's function approach we propose a general method to investigate entanglement of the vacuum state or thermal ground states in an arbitrary dimensional space-time. As an...
Quantum Key Distribution Using Quantum Faraday Rotators (2006)
Choi, Taeseung, Choi, Mahn-Soo
We propose a new quantum key distribution (QKD) protocol based on the fully quantum mechanical states of the Faraday rotators. The protocol is unconditionally secure against collective attacks for...
Quantum Separability of the vacuum for Scalar Fields with a Boundary (2006)
Lee, Jae-Weon, Kim, Jaewan, Choi, Taeseung
Using the Green's function approach we investigate separability of the vacuum state of a massless scalar field with a single Dirichlet boundary. Separability is demonstrated using the positive...
Choi, Taeseung, Ryu, Chang-Mo, Jayannavar, A. M.
We considered the circulating current induced by the current magnification and the persistent current induced by Aharonov-Casher flux. The persistent currents have directional dependence on the...
Choi, Mahn-Soo, Choi, M. Y., Choi, Taeseung, Lee, Sung-Ik
We investigate the quantum phase transitions in two capacitively coupled chains of ultra-small Josephson-junctions, with emphasis on the external charge effects. The particle-hole symmetry of the...
Multi-anyons in the magnetic field (1998)
Choi, Taeseung, Ryu, Chang-Mo, Kim, Chul Koo
We consider the external magnetic field effects on the two types of anyon with fractional statistical parameters $p/q$ with coprimes $p$ and $q$, one with fractional charge $e/q $ and flux $p...
Directional dependence of spin currents induced by Aharonov-Casher phase (1998)
Choi, Taeseung, Ryu, Chang-Mo, Jayannavar, A. M.
We have calculated the persistent spin current of an open ring induced by the Aharonov-Casher phase. For unpolarized electrons there exist no persistent charge currents, but persistent spin currents....