### Abstract

The quantum dynamics of nano-scale molecular magnets is studied from a viewpoint of adiabatic transition in a time dependent external field. The effect of noise is studied by the quantum Langevin equation and the quantum master equation, and how the pure quantum dynamics is disturbed by the noise is investigated. The origin of the quantum fluctuation is studied for Heisenberg antiferromagnets with half-odd-integer spins on a ring. Novel use of quantum dynamical effects is also discussed.

Original language | English |
---|---|

Pages (from-to) | 370-379 |

Number of pages | 10 |

Journal | Progress of Theoretical Physics |

Issue number | 145 SUPPL. |

Publication status | Published - 2002 |

Externally published | Yes |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Progress of Theoretical Physics*, (145 SUPPL.), 370-379.

**Quantum dynamics and dissipation effects in the resonant tunneling of molecular magnets.** / Miyashita, Seiji; Saitou, Keiji; Nakano, Hiroki; Nishino, Masamichi.

Research output: Contribution to journal › Article

*Progress of Theoretical Physics*, no. 145 SUPPL., pp. 370-379.

}

TY - JOUR

T1 - Quantum dynamics and dissipation effects in the resonant tunneling of molecular magnets

AU - Miyashita, Seiji

AU - Saitou, Keiji

AU - Nakano, Hiroki

AU - Nishino, Masamichi

PY - 2002

Y1 - 2002

N2 - The quantum dynamics of nano-scale molecular magnets is studied from a viewpoint of adiabatic transition in a time dependent external field. The effect of noise is studied by the quantum Langevin equation and the quantum master equation, and how the pure quantum dynamics is disturbed by the noise is investigated. The origin of the quantum fluctuation is studied for Heisenberg antiferromagnets with half-odd-integer spins on a ring. Novel use of quantum dynamical effects is also discussed.

AB - The quantum dynamics of nano-scale molecular magnets is studied from a viewpoint of adiabatic transition in a time dependent external field. The effect of noise is studied by the quantum Langevin equation and the quantum master equation, and how the pure quantum dynamics is disturbed by the noise is investigated. The origin of the quantum fluctuation is studied for Heisenberg antiferromagnets with half-odd-integer spins on a ring. Novel use of quantum dynamical effects is also discussed.

UR - http://www.scopus.com/inward/record.url?scp=0036996622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036996622&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036996622

SP - 370

EP - 379

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

SN - 0033-068X

IS - 145 SUPPL.

ER -