Ultrafast optical excitation of coherent phonons in a one-dimensional metal at the photoinduced insulator-metal transition
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概要
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Photoinduced insulator-metal transition from the charge-density wave (CDW) ground state in a one-dimensional electron system is studied within the nonadiabatic theory of electron-phonon coupling. Ultrafast melting and partial recovery of the CDW and its critical slowing down are found to accompany the cooperative lattice response by an electron-phonon energy transfer on the subpicosecond time scale, which is read out by the nonadiabatic depopulation and repopulation of coherent phonons. Further, electron correlation is described in a self-consistent mean-field theory. In the strong electron correlation, the spin-density wave competes with the CDW and the photoinduced responses of the lattice is found to undergo the nonadiabatic-adiabatic transition.
論文 | ランダム
- 講座「宮澤賢治を読む会」テープおこし--リラ自然音楽クラブの講座「宮澤賢治を読む会」2000年2月22日作品「フランドン農学校の豚」のテープおこし (フランドン農学校の豚)
- フランドン農学校の豚
- 講座「宮澤賢治を読む会」テープおこし--リラ自然音楽クラブの講座「宮澤賢治を読む会」1999年12月 22日作品「やまなし」のテープおこし (やまなし)
- やまなし
- 特集 青木由有子氏インタビュー--リラ合唱曲「雁の童子」について (雁の童子)