arXiv subjects

M. Mezzadri

Publications and source records attributed to M. Mezzadri.

3 recordsLinked to original sources

arXiv2024

Many-Body Models for Chirality-Induced Spin Selectivity in Electron Transfer

We present the first microscopic model for chirality-induced spin selectivity effect in electron-transfer, in which the internal degrees of freedom of the chiral bridge are explicitly included. By exactly solving this model on short chiral chains we demonstrate that a sizable polarization on the acceptor arises from the interplay of coherent and incoherent dynamics, with strong electron-electron correlations yielding many-body states on the bridge as crucial ingredients. Moreover, we include the coherent and incoherent interactions with vibrational modes and show that they can play an important role in determining the long-time polarized state probed in experiments.

cond-mat.mes-hall↗

arXiv2003

The EU DataGrid Workload Management System: towards the second major release

In the first phase of the European DataGrid project, the 'workload management' package (WP1) implemented a working prototype, providing users with an environment allowing to define and submit jobs to the Grid, and able to find and use the ``best'' resources for these jobs. Application users have now been experiencing for about a year now with this first release of the workload management system. The experiences acquired, the feedback received by the user and the need to plug new components implementing new functionalities, triggered an update of the existing architecture. A description of this revised and complemented workload management system is given.

cs.DC↗

arXiv2003

The first deployment of workload management services on the EU DataGrid Testbed: feedback on design and implementation

Application users have now been experiencing for about a year with the standardized resource brokering services provided by the 'workload management' package of the EU DataGrid project (WP1). Understanding, shaping and pushing the limits of the system has provided valuable feedback on both its design and implementation. A digest of the lessons, and "better practices", that were learned, and that were applied towards the second major release of the software, is given.

cs.DC↗