Zobrazeno 1 - 10
of 357
pro vyhledávání: '"Paul, Brumer"'
The optical theorem is a fundamental aspect of quantum scattering theory. Here, we generalize this theorem to the case where the incident scattering state is a superposition of internal states of the collision partners, introducing additional interfe
Externí odkaz:
http://arxiv.org/abs/2202.02198
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p L042025 (2023)
Quantum coherent control of collisions beyond the ultracold regime can face a major challenge due to the incoherent addition of different partial-wave contributions to the total scattering cross section. These contributions become increasingly numero
Externí odkaz:
https://doaj.org/article/bf4afc49697d407d8c6c97aa01fe6c22
Autor:
Masato Morita, Brian K. Kendrick, Jacek Kłos, Svetlana Kotochigova, Paul Brumer, Timur V. Tscherbul
Publikováno v:
The Journal of Physical Chemistry Letters. 14:3413-3421
Ultracold chemical reactions of weakly bound triplet-state alkali-metal dimer molecules have recently attracted much experimental interest. We perform rigorous quantum scattering calculations with a new $ab\, initio$ potential energy surface to explo
Publikováno v:
The Journal of Physical Chemistry Letters. 14:1436-1444
Publikováno v:
Journal of Chemical Theory and Computation. 19:1130-1143
The nonequilibrium steady state (NESS) of a quantum network is central to a host of physical and biological scenarios. Examples include natural processes such as vision and photosynthesis, as well as technical devices such as photocells, both activat
Autor:
Amro Dodin, Paul Brumer
Publikováno v:
PRX Quantum, Vol 2, Iss 3, p 030302 (2021)
We present generalized adiabatic theorems for closed and open quantum systems that can be applied to slow modulations of rapidly varying fields, such as oscillatory fields that occur in optical experiments and light-induced processes. The generalized
Externí odkaz:
https://doaj.org/article/da198295450f444284ecf06a8c0a0397
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013295 (2021)
We explore the properties of steady-state noise-induced (Fano) coherences generated in a three-level V-system continuously pumped by polarized incoherent light in the absence of coherent driving. By solving the nonsecular Bloch-Redfield quantum maste
Externí odkaz:
https://doaj.org/article/c3b9e53d831248a9acc1afc8e29f4f8d
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123006 (2021)
In the case of quantum systems interacting with multiple environments, the time-evolution of the reduced density matrix is described by the Liouvillian. For a variety of physical observables, the long-time limit or steady state (SS) solution is neede
Externí odkaz:
https://doaj.org/article/edf05969629b4c57a47c8c2f1bedbd46
We consider the coherent control of ultracold molecule-molecule scattering, impacted by a dense set of rovibrational resonances. To characterize the resonance spectrum, a rudimentary model based on multichannel quantum defect theory has been used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ced8ead4083af1b9e4d101bad76bd62
Steady State Photoisomerization Quantum Yield of Model Rhodopsin: Insights from Wavepacket Dynamics?
Autor:
Chern Chuang, Paul Brumer
Publikováno v:
The journal of physical chemistry letters. 13(22)
We simulate the nonequilibrium steady state \textit{cis-trans} photoisomerization of retinal chromophore in rhodopsin based on a two-state-two-mode model coupled to a thermal environment. By analyzing the systematic trends within an inhomogeneously b