Light-Induced Conical Intersections: Topological Phase, Wave Packet Dynamics, and Molecular Alignment

Halász, Gábor J.; Šindelka, Milan; Moiseyev, Nimrod; Cederbaum, Lorenz S.; Vibók, Ágnes

doi:10.1021/jp206860p

Cited by 81 publications

(84 citation statements)

References 32 publications

(63 reference statements)

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“…The energetic and spatial position of these light-induced CIs can be controlled by varying the parameter settings of the laser field. Detailed theoretical investigations demonstrate that these light-induced CIs have a strong impact on the nuclear dynamics [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…In our former works we have pointed out that the appearance of the topological or Berry phase in a molecular system is a clear signature of the CI independently of whether it is a natural or a laser-induced one [11,12]. Applying the line integral technique [16] in the Floquet representation we calculated the Berry phase in diatomics for a LICI situation.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear-wave-packet quantum interference in the intense laser dissociation of the D2+molecule

et al. 2013

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Recently it has been recognized that electronic conical intersections in molecular systems can be induced by laser light even in diatomics. As is known a direct consequence of these accidental degeneracies is the appearance of nonadiabatic effects which has a strong impact on the nuclear quantum dynamics. Studying the photodissociation process of the D 2 + molecule, we report here some observable quantum interference phenomena that arise from the topological singularity induced by a strong laser field.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nuclear-wave-packet quantum interference in the intense laser dissociation of the D2+molecule

et al. 2013

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“…It has been demonstrated that the LICI in diatomics gives rise to a variety of nonadiabatic phenomena. Of course, they exhibit a topological phase and provide singular nonadiabatic couplings like the natural CIs do [5,6]. Already in traveling waves of rather weak intensity the LICI has a substantial impact on the spectrum of the molecule [4].…”

Section: Introductionmentioning

confidence: 99%

Towards controlling the dissociation probability by light-induced conical intersections

et al. 2016

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Light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves. The position of a LICI is determined by the laser frequency while the laser intensity controls the strength of the nonadiabatic coupling. Recently, it was shown within the LICI framework that linearly chirped laser pulses have an impact on the dissociation dynamics of the D + 2 molecule (J. Chem. Phys. 143, 014305, (2015); ibid 144, 074309, (2016)). In this work we exploit this finding and perform calculations using chirped laser pulses in which the time dependence of the laser frequency is designed so as to force the LICI to move together with the field-free vibrational wave packet as much as possible. Since nonadiabaticity is strongest in the vicinity of the conical intersection, this is the first step towards controlling the dissociation process via the LICI. Our showcase example is again the D + 2 molecular ion. To demonstrate the impact of the LICIs on the dynamical properties of diatomics, the total dissociation probabilities and the population of the different vibrational levels after the dissociation process are studied and discussed.

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“…The adiabatic potentials that incorporate these laser-molecule coupling effects are called light-induced potentials [28] (LIPs), while the avoided crossings in the LIPs are called light-induced avoided crossings [29,30] (LIACs). In polyatomic molecules, or taking into account the vectorial nature of the coupling, the LIACs can be seen as light-induced conical intersections [31][32][33][34][35][36][37][38][39] (LICIs). Considerable theoretical effort has been put recently at characterizing the LICIs.…”

Section: Introductionmentioning

confidence: 99%

Molecular events in the light of strong fields: A light‐induced potential scenario

Chang

Solá

Shin

2016

Int J of Quantum Chemistry

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A new perspective on how to manipulate molecules by means of very strong laser pulses is emerging with insights from the so-called light-induced potentials, which are the adiabatic potential energy surfaces of molecules severely distorted by the effect of the strong field. Different effects appear depending on how the laser frequency is tuned, to a certain electronic transition, creating light-induced avoided crossings, or very off-resonant, generating Stark shifts. In the former case it is possible to induce dramatic changes in the geometry and redistribution of charges in the molecule while the lasers are acting and to fully control photodissociation reactions as well as other photochemical processes. Several theoretical proposals taken from the work of the authors are reviewed and analyzed showing the unique features that the strong-laser chemistry opens to control the transient properties and the dynamics of molecules.

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Light-Induced Conical Intersections: Topological Phase, Wave Packet Dynamics, and Molecular Alignment

Cited by 81 publications

References 32 publications

Nuclear-wave-packet quantum interference in the intense laser dissociation of the D2+molecule

Nuclear-wave-packet quantum interference in the intense laser dissociation of the D2+molecule

Towards controlling the dissociation probability by light-induced conical intersections

Molecular events in the light of strong fields: A light‐induced potential scenario

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