The Library
Model-independent simulation complexity of complex quantum dynamics
Tools
Tools
Tools
Khan, Aiman, Quigley, David, Marcus, Max, Thyrhaug, Erling and Datta, Animesh (2021) Model-independent simulation complexity of complex quantum dynamics. Physical Review Letters, 126 (15). 150402. doi:10.1103/PhysRevLett.126.150402 ISSN 0031-9007.
|
PDF
WRAP-model-independent-simulation-complexity-complex-quantum-dynamics-Datta-2021.pdf - Accepted Version - Requires a PDF viewer. Download (1607Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevLett.126.150402
Abstract
We present a model-independent measure of dynamical complexity based on simulation of complex quantum dynamics using stroboscopic Markovian dynamics. Tools from classical signal processing enable us to infer the Hilbert space dimension of the complex quantum system evolving under a time-independent Hamiltonian via pulsed interrogation. We illustrate this using simulated third-order pump-probe spectroscopy data for exciton transport in a toy model of a coupled dimer with vibrational levels, revealing the dimension of the singly excited manifold of the dimer. Finally, we probe the complexity of excitonic transport in light harvesting 2 (LH2) and Fenna-Matthews-Olson (FMO) complexes using data from two recent nonlinear ultrafast optical spectroscopy experiments. For the latter we make model-independent inferences that are commensurate with model-specific ones, including the estimation of the fewest number of parameters needed to fit the experimental data and identifying the spatial extent, i.e., delocalization size, of quantum states participating in this complex quantum dynamics.
| Item Type: | Journal Article | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
| Library of Congress Subject Headings (LCSH): | Quantum theory, Hamiltonian operator, Hilbert space , Flash photolysis | ||||||||||||
| Journal or Publication Title: | Physical Review Letters | ||||||||||||
| Publisher: | American Physical Society | ||||||||||||
| ISSN: | 0031-9007 | ||||||||||||
| Official Date: | 14 April 2021 | ||||||||||||
| Dates: |
|
||||||||||||
| Volume: | 126 | ||||||||||||
| Number: | 15 | ||||||||||||
| Article Number: | 150402 | ||||||||||||
| DOI: | 10.1103/PhysRevLett.126.150402 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
| Date of first compliant deposit: | 22 April 2021 | ||||||||||||
| Date of first compliant Open Access: | 23 April 2021 | ||||||||||||
| RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
