4 papers
Constructing Doubly Self-Dual Chiral p-Form Actions in D=2(p+1) Spacetime Dimensions
Yan-Gang Miao, Harald J. W. Mueller-Kirsten, Dae Kil Park
A Siegel-type chiral p-form action is proposed in D=2(p+1) spacetime dimensions. The approach we adopt is to realize the symmetric second-rank Lagrange-multiplier field, introduced…
Macroscopic Quantum Phase Interference in Antiferromagnetic Particles
Yi-Hang Nie, Yan-Hong Jin, J. -Q. Liang +3
The tunnel splitting in biaxial antiferromagnetic particles is studied with a magnetic field applied along the hard anisotropy axis. We observe the oscillation of tunnel splitting…
Quantum Phase Interference for Quantum Tunneling in Spin Systems
J. -Q. Liang, H. J. W. Müller-Kirsten, D. K. Park +1
The point-particle-like Hamiltonian of a biaxial spin particle with external magnetic field along the hard axis is obtained in terms of the potential field description of spin syst…
A condition for first order phase transitions in quantum mechanical tunneling models
H. J. W. Mueller-Kirsten, D. K. Park, J. M. S. Rana
A criterion is derived for the determination of parameter domains of first order phase transitions in quantum mechanical tunneling models. The criterion is tested by application to…