SAMOP 2023 – wissenschaftliches Programm
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SYQR: Symposium Quantum Optics and Quantum Information with Rigid Rotors
SYQR 2: Quantum Optics and Quantum Information with Rigid Rotors 2
SYQR 2.2: Hauptvortrag
Freitag, 10. März 2023, 15:00–15:30, E415
Quantum toolbox for molecular state spaces — Eric Kubischta1, Shubham Jain1, Ian Teixeira1, Eric R. Hudson2, Wesley C. Campbell2, Mikhail Lemeshko3, and •Victor V. Albert1 — 1Joint Center for Quantum Information and Computer Science, NIST and University of Maryland, College Park, MD, USA — 2UCLA Center for Quantum Science and Engineering & Department of Physics and Astronomy, Los Angeles, California, USA — 3Institute of Science and Technology Austria (ISTA), Am Campus 1, 3400 Klosterneuburg, Austria
Rotational states of symmetric- and asymmetric-top trapped molecules, modeled by infinite-dimensional Hilbert spaces of various quantized rigid bodies, present new opportunities for both the development of basic science and for the storage and processing of quantum information.
This work adapts basic quantum tools from established discrete- and continuous-variable systems to symmetric rigid bodies, developing a set of ``position-state'' labels for molecular orientations and a Pauli-type group of unitary operations. Our approach builds on the conjugate relationship between states of fixed angular momentum and fixed orientation and can be extended to incorporate nuclear spin.
We also study different types of noise present in molecular systems. We show that some noise can be highly non-local in the molecule's orientation-momentum ``phase'' space, characterizing instances where conventional (i.e., exact) error-correction can fail. We comment on the different strategies that can circumvent this no-go result.