Nondestructive dispersive imaging of rotationally excited ultracold molecules.

Autor: Guan, Qingze, Highman, Michael, Meier, Eric J., Williams, Garrett R., Scarola, Vito, DeMarco, Brian, Kotochigova, Svetlana, Gadway, Bryce
Zdroj: Physical Chemistry Chemical Physics (PCCP); 9/28/2020, Vol. 22 Issue 36, p20531-20544, 14p
Abstrakt: A barrier to realizing the potential of molecules for quantum information science applications is a lack of high-fidelity, single-molecule imaging techniques. Here, we present and theoretically analyze a general scheme for dispersive imaging of electronic ground-state molecules. Our technique relies on the intrinsic anisotropy of excited molecular rotational states to generate optical birefringence, which can be detected through polarization rotation of an off-resonant probe laser beam. Using 23Na87Rb and 87Rb133Cs as examples, we construct a formalism for choosing the molecular state to be imaged and the excited electronic states involved in off-resonant coupling. Our proposal establishes the relevant parameters for achieving degree-level polarization rotations for bulk molecular gases, thus enabling high-fidelity nondestructive imaging. We additionally outline requirements for the high-fidelity imaging of individually trapped molecules. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index