5 papers
Geometrical phase effects in biaxial nanomagentic particles
Sahng-Kyoon Yoo, Soo-Young Lee
The oscillation of tunnel splitting are obtained by geometrical analysis of the topological Wess-Zumino phase on the basis of tunneling paths in biaxial nanomagnetic particles with…
Escape rate of the nanospin system in a magnetic field: the first-order phase transition within quantum regime
Chang Soo Park, Sahng-Kyoon Yoo, D. K. Park +1
We have investigated the escape rate of the nanospin particle with a magnetic field applied along the easy axis. The model studied here is described by the Hamiltonian $\hat{\cal H…
Equivalence of renormalization with self-adjoint extension in Green's function formalism
D. K. Park, Sahng-Kyoon Yoo
Energy-dependent Green's functions for the two and three dimensional -function plus harmonic oscillator potential systems are derived by incorporating the renormalization and th…
The Second Virial Coefficient of Spin-1/2 Anyon Systems
Sahng-kyoon Yoo, D. K. Park
We calculate the second virial coefficient of spin-1/2 anyon gas in the various values of the self-adjoint extension parameter by incorporating the self-adjoint extension method in…
The incident wave in Aharonov-Bohm scattering wavefunction
Sahng-Kyoon Yoo, D. K. Park
It is shown that only the infinite angular momentum quantum states contribute to the incident wave in Aharonov-Bohm (AB) scattering. This result is clearly shown by recalculating t…