Multi-color quantum control for suppressing ground state coherences in two-dimensional electronic spectroscopy
| Autor: | Christiane P. Koch, James Lim, Martin B. Plenio, Alejandro D. Somoza, C M Bösen, Susana F. Huelga |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Chemical Physics (physics.chem-ph) Work (thermodynamics) Quantum Physics General Physics and Astronomy FOS: Physical sciences 01 natural sciences Electron spectroscopy Spectral line Vibration Coherent control Biological Physics (physics.bio-ph) Excited state Physics - Chemical Physics 0103 physical sciences Benchmark (computing) Statistical physics Physics - Biological Physics 010306 general physics Ground state Quantum Physics (quant-ph) |
| DOI: | 10.48550/arxiv.1812.11537 |
| Popis: | The measured multi-dimensional spectral response of different light harvesting complexes exhibits oscillatory features which suggest an underlying coherent energy transfer. However, making this inference rigorous is challenging due to the difficulty of isolating excited state coherences in highly congested spectra. In this work, we provide a coherent control scheme that suppresses ground state coherences, thus making rephasing spectra dominated by excited state coherences. We provide a benchmark for the scheme using a model dimeric system and numerically exact methods to analyze the spectral response. We argue that combining temporal and spectral control methods can facilitate a second generation of experiments that are tailored to extract desired information and thus significantly advance our understanding of complex open many-body structure and dynamics. |
| Databáze: | OpenAIRE |
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