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dc.contributor.authorLiao, YYen_US
dc.contributor.authorChen, YNen_US
dc.contributor.authorChou, WCen_US
dc.contributor.authorChuu, DSen_US
dc.date.accessioned2019-04-03T06:44:51Z-
dc.date.available2019-04-03T06:44:51Z-
dc.date.issued2006-03-01en_US
dc.identifier.issn1098-0121en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.73.115421en_US
dc.identifier.urihttp://hdl.handle.net/11536/12517-
dc.description.abstractOrientation of single and two coupled polar molecules irradiated by a single laser pulse under a conical-well model is investigated theoretically. The orientation of a single hindered rotor shows a periodic behavior. In particular, the amplitude of the oscillation is sensitive to the degree of alternation of the laser field. Crossover from field-free to hindered rotation is observed by varying the hindering angle for different heights of conical wells. For a small hindering potential and angle, time-averaged orientation differs greatly from that for an infinite one. The orientation at a large hindering angle shows irregularlike behavior under strong dipole-dipole interaction. Entanglement induced by the dipole-dipole interaction is also calculated for the coupled-rotor system, in which the time-averaged entropy increases monotonically as the hindering angle is increased. The competition between the confinement effect and dipole interaction is found to dominate the behavior of the coupled-rotor system.en_US
dc.language.isoen_USen_US
dc.titleOrientation of adsorbed dipolar molecules: A conical well modelen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevB.73.115421en_US
dc.identifier.journalPHYSICAL REVIEW Ben_US
dc.citation.volume73en_US
dc.citation.issue11en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000236467300141en_US
dc.citation.woscount6en_US
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