RT Journal Article T1 Circularly polarized light-induced potentials and the demise of excited states A1 Carrasco, Sebastián A1 Rogan, José A1 Valdivia, Juan Alejandro A1 Chang, Bo Y A1 Malinovsky, Vladimir S A1 Sola Reija, Ignacio AB In the presence of strong electric fields, the excited states of single-electron molecules and molecules with large transient dipoles become unstable because of anti-alignment, the rotation of the molecular axis perpendicular to the field vector, where bond hardening is not possible. We show how to overcome this problem by using circularly polarized electromagnetic fields. Using a full quantum description of the vibrational, and rotational degrees of freedom, we characterize the excited electronic state rotational eigenstates. Although the dynamics is metastable, most of the population remains trapped in this dressed by the field and analyze its dependence on the bond length and angle and the stability of its vibro-excited state for hundreds of femtoseconds, allowing quantum control. Contrary to what happens with linearly polarized fields, the photodissociation occurs along the initial molecular axis, not perpendicular to it. PB Royal Society of Chemistry YR 2021 FD 2021-12-28 LK https://hdl.handle.net/20.500.14352/115324 UL https://hdl.handle.net/20.500.14352/115324 LA eng NO Laboratorio de Investigación del Ejército NO Agencia Nacional de Investigación y Desarrollo NO Centro para el Desarrollo de la Nanociencia y la Nanotecnología (CEDENNA) NO Ministerio de Economía, Comercio y Empresa DS Docta Complutense RD 7 abr 2025