47 citations
- Sogang UniversityKR10 papers
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- Korea Advanced Institute of Science and TechnologyKR2 papers
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Showing 1999Show all
3 papers · 1 filter
hep-th1999★ 3 cited
Bifurcation of Periodic Instanton in Decay-Rate Transition
Hyun-Soo Min, Hungsoo Kim, D. K. Park +3
We investigate a bifurcation of periodic instanton in Euclidean action-temperature diagram in quantum mechanical models. It is analytically shown that multiple zero modes of fluctu…
cond-mat.mes-hall1999★ 10 cited
Oscillation of the tunnel splitting in nanospin systems within the particle mapping formalism
Sahng-Kyoon Yoo, Soo-Young Lee, Dal-Ho Yoon +1
The oscillation of tunnel splitting in the biaxial spin system within magnetic field along the anisotropy axis is analyzed within the particle mapping approach, rather than in the…
cond-mat.mes-hall1999★ 17 cited
Quantum-classical phase transition of escape rate in biaxial spin system with an arbitrarily directed magnetic field
Chang-Soo Park, Sahng-Kyoon Yoo, Dal-Ho Yoon
We investigate the escape rate of a biaxial spin particle with an arbitrarily dierected magnetic field in the easy plane, described by Hamiltonian ${\cal H} = -AS_z^2 - BS_x^2 -H_x…