Seogjoo J. Jang
@SeogjooJ
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Theoretical & Computational Chemist & Physicist - Quantum dynamics, Exciton theory, Photovoltaics, Olfaction; Professor of Chemistry, CUNY-Queens College
Queens College, CUNY, NY
Joined April 2020
https://t.co/3KeYBnyRAH Most open system quantum dynamics methods reply on harmonic oscillator bath (HOB) model. This work demonstrates its effectiveness in representing effects on system dynamics but also reveals its limitations in realistic account of energy dissipation.
pubs.acs.org
Environmental effects in the excitation energy transfer (EET) processes have been predominantly modeled by baths of harmonic oscillators; however, the key features of anharmonicities that are...
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This is to announce an upcoming CUNY ITS workshop on "First-principle calculations of electronic dynamics and their couplings to molecules and environments," at the Graduate Center of CUNY on May 9 (Friday), 2025. See the link for details & registration: https://t.co/fAVXjPPUuA
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This is to announce an upcoming CUNY ITS workshop on "First-principle calculations of electronic dynamics and their couplings to molecules and environments," at the Graduate Center of CUNY on May 9 (Friday), 2025. See the link for details & registration: https://t.co/fAVXjPPUuA
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This is to announce a CUNY ITS workshop on "Advanced Computational Approaches for Large Scale Molecular Quantum Processes," on April 11 (Friday), featuring Andrew Rappe, Ari Chakraborty, Xiang Sun, Ed Valeev, and Victor Batista. See the link for details.
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This is to announce a CUNY ITS workshop on "Advanced Computational Approaches for Large Scale Molecular Quantum Processes," on April 11 (Friday), featuring Andrew Rappe, Ari Chakraborty, Xiang Sun, Ed Valeev, and Victor Batista. See the link for details.
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https://t.co/TRq9UPkpPe Internal conversion of excited state via derivative coupling seems like a well understood process, but its quantitative modeling is far from being resolved. This work provides new rate expression making it easier, along with some historical overview.
pubs.acs.org
Starting from a general molecular Hamiltonian expressed in the basis of adiabatic electronic and nuclear position states, where a compact and complete expression for the nonadiabatic derivative...
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https://t.co/oQH567NLXO Molecular systems are intrinsically quantum mechanical, but how to develop them for the quantum technology remains an open question. We have a workshop on theories and computational methods providing new perspectives towards this goal. All are welcome.
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https://t.co/yJQhjjkVRF Exciting CUNY ITS Workshop on "Theories and Computational Methods for Accurate and Efficient Calculation of Electronic Transitions and Spectroscopy" on Dec. 6., featuring Weitao Yang, Ksenia Bravaya, Spridoula Matsika, Tim Zuehlsdorff, & Deyus Lu.
gc.cuny.edu
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https://t.co/KZpmyxOcS0 CUNY Graduate Center ITS Workshop on "Catching essential features from multiscale dynamics of biological systems and complex materials" on Nov. 15, 2024. Topics include multiscale modeling, coarse-graining, rates, and fluctuations.
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https://t.co/gyOPvXV5Yw Two back-to-back ITS seminars at the CUNY Graduate Center by Hsi-Sheng Goan and Justin Wilson on quantum computation, control, and machine learning on Nov. 12, 2024 welcomes everyone.
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Here is a very comprehensive review on the subject of coherence in chemistry, just published on line. https://t.co/5RhpljfYAx
pubs.acs.org
Coherence refers to correlations in waves. Because matter has a wave-particle nature, it is unsurprising that coherence has deep connections with the most contemporary issues in chemistry research...
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Novel results show that many-body scars are suitable for adiabatic evolution despite the absence of energy gaps. @AarhusUni_int
https://t.co/DecjaXd1oj
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Non-smooth dynamical systems, such as an oscillating beam rubbing against a wall, also have low-dimensional attracting spectral submanifolds (SSMs). But those SSMs, and the reduced models they carry, are only piecewise smooth. Movie: @leonardo_bttn Paper: https://t.co/UkqXRBawsw
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The complexity of the human brain and its functions in a neat infographic map [zoomable version: https://t.co/4KyqZPcgRB]
https://t.co/xSmZ7Vc3zH
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One of my idols during the interview process. I can only hope I made him proud over the years following... Godspeed Josef Michl!! Your work will never be forgotten. Neither will you.
It is with profound sadness that IOCB Prague announces the sudden passing of Prof. Josef Michl, a globally esteemed Czech chemist, on Monday, 13 May, at the age of 85. Prof. Michl led research groups at @IOCBPrague and @CUBoulder. "He was one of the few true geniuses I have had
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https://t.co/TxrNNMgJtu Registration for International workshop on "New Advances in Theoretical and Computational Molecular Sciences for Complex and Quantum Processes (TMCQ)," which will be held in Seoul, Korea during July 8-12, 2024, is now open.
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https://t.co/YYEdj5udOi Many environmental effects on exciton dynamics are described remarkably well by baths of harmonic oscillators, but can there be hidden effects of anharmonicity? Our work answers this question to some extent and also offers a good way to determine baths.
pubs.aip.org
Environmental effects in excitation energy transfer have mostly been modeled by baths of harmonic oscillators, but to what extent such modeling provides a relia
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https://t.co/ZYBOcJBNc7 A new work on Fermi's golden rule (FGR) on nonadiabatic transitions helps understand assumptions involved applying FGR for derivative couplings in the adiabatic basis & derives a closed form rate expression addressing nonCondondon effects due to momentum.
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