Zobrazeno 1 - 10
of 3 272
pro vyhledávání: '"Barford, A"'
Autor:
Ichert, Alexandru G., Barford, William
A theory of singlet fission in carotenoid dimers is presented which aims to explain the mechanism behind the creation of two uncorrelated triplets. Following the initial photoexcitation of a carotenoid chain to a "bright" $n^1B_u^+$ state, there is u
Externí odkaz:
http://arxiv.org/abs/2411.14282
Autor:
Barford, William
Stochastic quantum Liouville equations (SQLE) are widely used to model energy and charge dynamics in molecular systems. The Haken-Strobl-Reineker (HSR) SQLE is a particular paradigm in which the dynamical noise that destroys quantum coherences arises
Externí odkaz:
http://arxiv.org/abs/2406.12750
Autor:
Anna Höfler, Jun Yu, Jing Yang, Ziguo Zhang, Leifu Chang, Stephen H. McLaughlin, Geoffrey W. Grime, Elspeth F. Garman, Andreas Boland, David Barford
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-14 (2024)
Abstract APC/C is a multi-subunit complex that functions as a master regulator of cell division. It controls progression through the cell cycle by timely marking mitotic cyclins and other cell cycle regulatory proteins for degradation. The APC/C itse
Externí odkaz:
https://doaj.org/article/589f354937f84c75bfa553a6d658d72c
Autor:
Barford, William
A theory of singlet fission (SF) in carotenoid dimers is applied to explain the SF in lycopene H-aggregates observed after high energy photoexcitation. The explanation proposed here is that a high energy, delocalized bright $^1B_u^+$ state first rela
Externí odkaz:
http://arxiv.org/abs/2308.16013
Autor:
Barford, William, Chambers, Cameron A
We develop a theory of singlet fission in carotenoid dimers. Following photoexcitation of the 'bright' state (i.e., a singlet electron-hole pair) in a single carotenoid, the first step in the singlet fission process is ultrafast intramolecular conver
Externí odkaz:
http://arxiv.org/abs/2304.10404
Over the past two decades, a desire to reduce transit cost, improve control over routing and performance, and enhance the quality of experience for users, has yielded a more densely connected, flat network with fewer hops between sources and destinat
Externí odkaz:
http://arxiv.org/abs/2303.02514
Autor:
Ester Vazquez-Fernandez, Jing Yang, Ziguo Zhang, Antonina E Andreeva, Paul Emsley, David Barford
Publikováno v:
eLife, Vol 13 (2024)
The anaphase-promoting complex/cyclosome (APC/C) is a large multi-subunit E3 ubiquitin ligase that controls progression through the cell cycle by orchestrating the timely proteolysis of mitotic cyclins and other cell cycle regulatory proteins. Althou
Externí odkaz:
https://doaj.org/article/6c26f8f07982454fa474c7217906fe20
We describe our dynamical simulations of the excited states of the carotenoid, neurosporene, following its photoexcitation into the 'bright' (nominally $1^1B_u^+$) state. We employ the adaptive tDMRG method on the UV model of $\pi$-conjugated electro
Externí odkaz:
http://arxiv.org/abs/2211.02267
We present a dynamical simulation scheme to model the highly correlated excited state dynamics of linear polyenes. We apply it to investigate the internal conversion processes of carotenoids following their photoexcitation. We use the extended Hubbar
Externí odkaz:
http://arxiv.org/abs/2211.02022
A basic assumption in online advertising is that it is possible to attribute a view of a particular ad creative (i.e., an impression) to a particular web page. In practice, however, the seemingly simple task of ad attribution is challenging due to th
Externí odkaz:
http://arxiv.org/abs/2208.07310