Quantum control of unidirectional rotations of a chiral molecular motor.
A quantum control method is presented for designing electric fields of laser pulses to drive a chiral molecular motor in desired, rotational directions. Intuitive or counter-intuitive rotational motion of a chiral motor, 2-chloro-5-methyl-cyclopenta-2,4-dienecarbaldehyde, was controlled by electric fields of ps-laser pulses with mid-infrared central frequencies. The control mechanism is discussed by analyzing the time- and frequency-resolved spectrum of the electric fields of the laser pulses. Timing of laser pulses is the essential factor for controlling unidirectional motions.
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
M
M
Yamaki
K
K
Hoki
Y
Y
Ohtsuki
H
H
Kono
Y
Y
Fujimura
D002627:Chemistry, Physical / Q000379:methods*; D007834:Lasers; D015233:Models, Statistical; D009038:Motion; D011789:Quantum Theory; D012399:Rotation; D013237:Stereoisomerism; D013997:Time Factors