Quantum Device Emulates the Dynamics of Two Coupled OscillatorsClick to copy article linkArticle link copied!
- Ksenia KomarovaKsenia KomarovaThe Fritz Haber Center for Molecular Dynamics and Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelMore by Ksenia Komarova
- Hugo GattusoHugo GattusoTheoretical Physical Chemistry, UR MolSys B6c, University of Liège, B4000 Liège, BelgiumMore by Hugo Gattuso
- R. D. LevineR. D. LevineThe Fritz Haber Center for Molecular Dynamics and Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelDepartment of Chemistry and Biochemistry and Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, California 90095, United StatesMore by R. D. Levine
- F. Remacle*F. Remacle*Email: [email protected]Theoretical Physical Chemistry, UR MolSys B6c, University of Liège, B4000 Liège, BelgiumThe Fritz Haber Center for Molecular Dynamics and Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelMore by F. Remacle
Abstract

Our quantum device is a solid-state array of semiconducting quantum dots that is addressed and read by 2D electronic spectroscopy. The experimental ultrafast dynamics of the device is well simulated by solving the time-dependent Schrödinger equation for a Hamiltonian that describes the lower electronically excited states of the dots and three laser pulses. The time evolution induced in the electronic states of the quantum device is used to emulate the quite different nonequilibrium vibrational dynamics of a linear triatomic molecule. We simulate the energy transfer between the two local oscillators and, in a more elaborate application, the expectation values of the quantum mechanical creation and annihilation operators of each local oscillator. The simulation uses the electronic coherences engineered in the device upon interaction with a specific sequence of ultrafast pulses. The algorithm uses the algebraic description of the dynamics of the physical problem and of the hardware.
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