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    学术预告:Tharnier O. Puel 博士谈“Non-equilibrium phase transition on spin chain Ising model”

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    来源:理学院 作者:理学院 发布日期:2019-06-11

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    报告地点:仓前校区勤园20号楼518会议室

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    报告时间:6月12日14:30-15:30

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    报告内容:The generalization of quantum phase transitions to non-equilibrium conditions raises a number of questions, in particular, if and how out-of-equilibrium critical phenomena can be categorized into universality classes, in analogy with thermal equilibrium. Here we explore the non-equilibrium steady-state of a transverse magnetic field Ising chain coupled at its ends to magnetic thermal reservoirs. We generalize the phase diagram [1] to non-equilibrium conditions obtained by applying a magnetization bias to the reservoirs [2]. Our findings show that out-of-equilibrium conditions allow for novel critical phenomena not possible at equilibrium.

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    [1] P. Ribeiro and V. R. Vieira, Phys. Rev. B 92, 100302(R) (2015).

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    [2] T. O. Puel and S. Chesi and S. Kirchner and P. Ribeiro, arXiv:1809.07219. Accepted in PRL.

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    报告人简介:Dr. Tharnier O. Puel researches different fields on Solid State Physics with focus on topological phases of matter and non-equilibrium systems. He specialized on phase transitions in topological superconductors during his PhD in 2014, shared between UFSC-Brasil and IST-Portugal. The next two years were spent in the Brazilian Center of Physical Research as Postdoctoral researcher, focusing on the effect of multi-bands on non-conventional superconductivity. In 2017, Dr. T. O. Puel has joint a Postdoctoral position at Beijing Computational Research Center and IST-Lisbon, during which he extended his research to the physics of non-equilibrium open quantum systems. Since April he joined the Correlated Quantum Matter Group at Zhejiang University.

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