CAREER: Quantum Phases and Phase Transitions in Strongly Correlated Systems

这是一个结合了研究和教育活动的职业奖。研究课题是强相关电子系统。研究部分采用考虑特定系统的策略，目标是开发通用工具来研究费米子和玻色子系统中相互作用的作用，并提出一个理解物质强相关状态物理的通用框架。将研究高Tc铜酸盐中超导性和反铁磁性的相互作用，以了解具有竞争不稳定性的电子系统。本文将以介观尺度上具有相分离的电子系统为例，研究整数填充因子下量子霍尔系统中的条纹。在一维系统（Josephson结的线和链）作为量子相变的一个典型例子的情况下，将考虑玻色子和费米子抑制超导机制之间的关系以及超导体到绝缘体转变的耗散作用。将研究光学晶格中的旋量玻色子原子，以了解玻色子系统中相互作用的作用。对基本和普遍性质的研究将由可以在实验中验证的可观测量的具体计算来补充。教育部分包括开发一门本科课程，从与实际应用相关的角度介绍凝聚态物理。通过讨论技术的最新发展，本课程将激励学生了解凝聚态物理的进展，并展示科学的动态：从基础研究到工业创新。本课程将以现代微电子学、半导体光学、磁电子学等为例，展示凝聚态物理的发现如何在过去引发了工业的重大变革。它还将讨论当前的学术研究领域，这些领域可能在未来的技术中发挥关键作用，例如纳米技术、量子计算和通信。对量子物理只有肤浅知识的观众也可以进行演示。这是一个结合了研究和教育活动的职业奖。研究课题是强相关电子系统。研究部分采用考虑特定系统的策略，目标是开发通用工具来研究费米子和玻色子系统中相互作用的作用，并提出一个理解物质强相关状态物理的通用框架。将研究高Tc铜酸盐中超导性和反铁磁性的相互作用，以了解具有竞争不稳定性的电子系统。本文将以介观尺度上具有相分离的电子系统为例，研究整数填充因子下量子霍尔系统中的条纹。在一维系统（Josephson结的线和链）作为量子相变的一个典型例子的情况下，将考虑玻色子和费米子抑制超导机制之间的关系以及超导体到绝缘体转变的耗散作用。将研究光学晶格中的旋量玻色子原子，以了解玻色子系统中相互作用的作用。对基本和普遍性质的研究将由可以在实验中验证的可观测量的具体计算来补充。教育部分包括开发一门本科课程，从与实际应用相关的角度介绍凝聚态物理。通过讨论技术的最新发展，本课程将激励学生了解凝聚态物理的进展，并展示科学的动态：从基础研究到工业创新。本课程将以现代微电子学、半导体光学、磁电子学等为例，展示凝聚态物理的发现如何在过去引发了工业的重大变革。它还将讨论当前的学术研究领域，这些领域可能在未来的技术中发挥关键作用，例如纳米技术、量子计算和通信。对量子物理只有肤浅知识的观众也可以进行演示。

This is a CAREER award that combines research and educational activities. The research topic is strongly correlated electron systems. The research component adopts a strategy of considering particular systems with a goal of developing general tools for studying the role of interactions in fermionic and bosonic systems, and bringing out a common framework for understanding the physics of strongly correlated states of matter. Intrplay of superconductivity and antiferromagnetism in the high Tc cuprates will be investigated to understand electron systems with competing instabilities. Stripes in the quantum Hall systems at integer filling factors will be studied as an example of electron systems with phase separation on mesoscopic scale. The relation between bosonic and fermionic mechanisms of suppression of superconductivity and the role of dissipation on the superconductor to insulator transition will be considered in the case of one-dimensional systems (wires and chains of Josephson junctions) as a typical example of quantum phase transitions. Spinor bosonic atoms in optical lattices will be studied to learn about the role of interactions in bosonic systems. Investigation of fundamental and universal properties will be complemented by concrete calculations of observable quantities that can be verified in experiments. The educational component involves developing an undergraduate course that presents condensed matter physics from the point of view of relevance to practical applications. By discussing recent developments in technology the course will motivate students to learn about progress in condensed matter physics and show the science in its dynamics: from basic research to industrial innovations. The course will use examples of modern microelectronics, semiconductor optics, magnetoelectronics and others to show how discoveries in condensed matter physics initiated major transformations in industry in the past. It will also address areas of current academic research that may play a crucial role in technologies of the future, for example, nanotechnology, and quantum computations and communications. Presentations will be accessible to an audience with only a superficial knowledge of quantum physics. This is a CAREER award that combines research and educational activities. The research topic is strongly correlated electron systems. The research component adopts a strategy of considering particular systems with a goal of developing general tools for studying the role of interactions in fermionic and bosonic systems, and bringing out a common framework for understanding the physics of strongly correlated states of matter. Intrplay of superconductivity and antiferromagnetism in the high Tc cuprates will be investigated to understand electron systems with competing instabilities. Stripes in the quantum Hall systems at integer filling factors will be studied as an example of electron systems with phase separation on mesoscopic scale. The relation between bosonic and fermionic mechanisms of suppression of superconductivity and the role of dissipation on the superconductor to insulator transition will be considered in the case of one-dimensional systems (wires and chains of Josephson junctions) as a typical example of quantum phase transitions. Spinor bosonic atoms in optical lattices will be studied to learn about the role of interactions in bosonic systems. Investigation of fundamental and universal properties will be complemented by concrete calculations of observable quantities that can be verified in experiments. The educational component involves developing an undergraduate course that presents condensed matter physics from the point of view of relevance to practical applications. By discussing recent developments in technology the course will motivate students to learn about progress in condensed matter physics and show the science in its dynamics: from basic research to industrial innovations. The course will use examples of modern microelectronics, semiconductor optics, magnetoelectronics and others to show how discoveries in condensed matter physics initiated major transformations in industry in the past. It will also address areas of current academic research that may play a crucial role in technologies of the future, for example, nanotechnology, and quantum computations and communications. Presentations will be accessible to an audience with only a superficial knowledge of quantum physics.