Theoretical investigation of dissipative processes in proteins using two-dimensional infrared spectroscopy and quantum control based on atomistic simulations

使用二维红外光谱和基于原子模拟的量子控制对蛋白质耗散过程进行理论研究

• 批准号: 259156518
• 负责人: Dr. Alexander Schubert
• 金额: --
• 依托单位: Laboratoire Collisions Agrégats Réactivité - UMR5589
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/259156518?language=en
• 关键词: Theoretical; investigation; dissipative; processes; proteins

The goal of the present research proposal is the theoretical investigation of dissipation phenomena in hemoproteins. We want to simulate energy relaxation and quantum coherence decay of selected vibrational states of a diatomic ligand using an atomistic quantum classical hybrid model based on a 'mutual' system-bath interaction. Thus, in addition to the protein dynamics' influence on the ligand system, we will also analyze the effect of the vibrational ligand excitation on its protein surrounding with atomistic resolution.Furthermore, we want to include quantum control schemes and two-dimensional infrared spectroscopy in order to be able to consider recent and future experiments.A deeper understanding of dissipative processes and their influencing factors can provide better insights in energy transport phenomena in biological and artificial systems and opens thereby the possibility of their active control.

本研究计划的目标是从理论上研究血红素蛋白的耗散现象。我们想模拟的能量弛豫和量子相干衰减的双原子配体的选择振动状态的原子量子经典混合模型的基础上的“相互”系统浴相互作用。因此，除了蛋白质动力学对配体系统的影响外，我们还将以原子级分辨率分析配体振动激发对其周围蛋白质的影响。我们希望包括量子控制方案和两个-三维红外光谱，以便能够考虑最近和未来的实验。更深入地了解耗散过程及其影响因素可以提供更好的见解在生物和人工系统的能量传输现象，从而打开了他们的主动控制的可能性。

项目成果

Vibrational-coherence measurement of nonequilibrium quantum systems by four-wave mixing

四波混频非平衡量子系统的振动相干测量

• DOI: 10.1103/physreva.92.053402
• 发表时间: 2015
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Alexander Schubert;Cyril Falvo;Christoph Meier
• 通讯作者: Christoph Meier