New Probes of Strong Interactions in Quantum Matter

量子物质强相互作用的新探针

基本信息

项目摘要

NONTECHNICAL SUMMARYEliminating inefficiencies in electrical conduction in the power grid by the use of superconducting wires could result in the saving of billions of dollars. The AmpaCity project in Essen Germany is one such example. However, a major obstacle to achieving that goal is understanding how to design new superconductors that work increasingly close to room temperature. A surprise in recent years was the discovery of high-temperature superconductivity in materials that have nothing in common with good metals. Consequently, understanding how such materials superconduct cannot be done with the standard building blocks of solid-state physics. This award supports research and education towards developing theoretical models to understand such superconductors. The PI will focus on analyzing a new class of recent experiments that offer unprecedented insight into the fundamental building blocks of the cuprate superconductors.In addition to training and mentoring graduate students, the PI will continue broad educational and outreach activities that include giving lectures to local middle-schools and public lectures to raise public awareness of physics.TECHNICAL SUMMARYWhile the strange metal has always stood as the basic obstacle in developing a theory of superconductivity in the cuprates, experiments designed to reveal the universal excitations that underly this state of matter have been nonexistent until now. The new experiments, momentum-resolved electron-energy loss spectroscopy (MEELS), measure the two-particle susceptibility and hence have all the many-body information needed to construct the dielectric function and also the single-particle electron self-energy. This award supports research and education towards extracting such information from the MEELS data. Special emphasis will be placed on comparison with optical measurements. Optical conductivity experiments measure the transverse dielectric response, while MEELS measures the longitudinal dielectric function. A key unanswered question is whether the two are equal. Certainly, they are expected to be equal in the limit of zero-momentum transfer, as any distinction between longitudinal and transverse dielectric functions disappears in this limit. However, the PI's analysis of the experimental data shows that this is not the case. The same analysis on other materials such as tantalum-diselinide, ruthenates, and even iron-pnictide superconductors reveals complete agreement between zero-momentum limits of the transverse and longitudinal dielectric functions. As this is the first instance where these two limits disagree, the cuprates represent an unprecendeted class of materials. Understanding of this discrepancy is at the heart of this project. The key question that arises is: Does the discrepancy between these two limits stand at the heart of strange-metal physics? Specific models will be studied to obtain a discrepancy between the two limits, and these models will be used to examine if they simultaneously explain the key characteristic of the strange metal, namely T-linear resistivity.In addition to training and mentoring graduate students, the PI will continue broad educational and outreach activities that include giving lectures to local middle-schools and public lectures to raise public awareness of physics.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
非技术总结通过使用超导导线消除电网中电力传导的低效可能会节省数十亿美元。德国埃森的安培项目就是这样一个例子。然而,实现这一目标的一个主要障碍是理解如何设计工作越来越接近室温的新型超导体。近年来一个令人惊讶的发现是,在与优质金属毫无共同之处的材料中发现了高温超导。因此,理解这种材料的超导是如何不能用固体物理的标准构件来完成的。该奖项支持研究和教育,以开发理论模型来理解这种超导体。国际超导学会将重点分析最近一批新的实验,这些实验对铜酸盐超导体的基本构成要素提供了前所未有的见解。除了培训和指导研究生之外,国际超导学会还将继续广泛的教育和推广活动,包括向当地中学讲课和公开讲座,以提高公众对物理的认识。技术总结尽管这种奇怪的金属一直是发展铜酸盐超导理论的基本障碍,但旨在揭示这种物质背后普遍激发的实验到目前为止还不存在。新的实验,动量分辨电子能量损失谱(MEELS),测量了两粒子的磁化率,因此拥有构建介电函数和单粒子电子自能所需的所有多体信息。该奖项支持从MEELS数据中提取此类信息的研究和教育。将特别强调与光学测量的比较。光学电导实验测量了横向介电响应,Meels测量了纵向介电函数。一个关键的悬而未决的问题是,这两者是否相等。当然,它们在零动量转移的极限上应该是相等的,因为纵向和横向介电函数之间的任何区别在这个极限中都消失了。然而,PI对实验数据的分析表明,情况并非如此。对其他材料的同样的分析表明,横向介电函数和纵向介电函数的零动量极限之间完全一致。由于这是第一次这两个限制不一致,铜酸盐代表了一种前所未有的材料类别。对这种差异的理解是这个项目的核心。由此产生的关键问题是:这两个极限之间的差异是不是奇异金属物理学的核心?将研究特定的模型以获得两个极限之间的差异,这些模型将被用来检验它们是否同时解释了这种奇怪金属的关键特征,即T-线性电阻。除了培训和指导研究生外,PI还将继续广泛的教育和推广活动,包括向当地中学授课和公共讲座,以提高公众对物理学的认识。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Free at last: Bose metal uncaged
终于自由:Bose Metal 脱困
  • DOI:
    10.1126/science.aaz9902
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    56.9
  • 作者:
    Phillips, Philip W.
  • 通讯作者:
    Phillips, Philip W.
Extracting correlation effects from momentum-resolved electron energy loss spectroscopy: Synergistic origin of the dispersion kink in Bi2.1Sr1.9CaCu2O8+x
  • DOI:
    10.1103/physrevb.103.035121
  • 发表时间:
    2020-10
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    E. Huang;K. Limtragool;C. Setty;A. Husain;M. Mitrano;P. Abbamonte;P. Phillips
  • 通讯作者:
    E. Huang;K. Limtragool;C. Setty;A. Husain;M. Mitrano;P. Abbamonte;P. Phillips
Anomalous diffusion and Noether's second theorem
  • DOI:
    10.1103/physreve.103.032115
  • 发表时间:
    2021-03-12
  • 期刊:
  • 影响因子:
    2.4
  • 作者:
    Baggioli, Matteo;La Nave, Gabriele;Phillips, Philip W.
  • 通讯作者:
    Phillips, Philip W.
Second-order Lovelock gravity from entanglement in conformal field theories
  • DOI:
    10.1103/physrevd.104.126018
  • 发表时间:
    2019-12
  • 期刊:
  • 影响因子:
    5
  • 作者:
    C. Fan;G. Nave;P. Phillips
  • 通讯作者:
    C. Fan;G. Nave;P. Phillips
Exact theory for superconductivity in a doped Mott insulator
  • DOI:
    10.1038/s41567-020-0988-4
  • 发表时间:
    2020-07-27
  • 期刊:
  • 影响因子:
    19.6
  • 作者:
    Phillips, Philip W.;Yeo, Luke;Huang, Edwin W.
  • 通讯作者:
    Huang, Edwin W.
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Philip Phillips其他文献

The origin of extended states in conducting polymers
  • DOI:
    10.1016/s0022-3093(05)80272-8
  • 发表时间:
    1991-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Philip Phillips;H.-L. Wu
  • 通讯作者:
    H.-L. Wu
Shell Gorgets: Styles of the Late Prehistoric and Protohistoric Southeast
贝壳护颈:史前晚期和原始史前东南部的风格
  • DOI:
  • 发表时间:
    1996
  • 期刊:
  • 影响因子:
    0
  • 作者:
    J. Brain;Philip Phillips
  • 通讯作者:
    Philip Phillips
From insulator to superconductor
从绝缘体到超导体
  • DOI:
    10.1038/35021170
  • 发表时间:
    2000-08-17
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Philip Phillips
  • 通讯作者:
    Philip Phillips
Insulator-metal transitions in random lattices containing symmetrical defects.
包含对称缺陷的随机晶格中的绝缘体-金属转变。
  • DOI:
    10.1103/physrevb.45.1623
  • 发表时间:
    1992
  • 期刊:
  • 影响因子:
    0
  • 作者:
    H.;William Goff;Philip Phillips
  • 通讯作者:
    Philip Phillips
Finite-temperature density instability at high landau level occupancy
高兰道水平占用率下的有限温度密度不稳定性
  • DOI:
    10.1103/physrevlett.84.1288
  • 发表时间:
    1999
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    T. Stanescu;Ivar Martin;Philip Phillips
  • 通讯作者:
    Philip Phillips

Philip Phillips的其他文献

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{{ truncateString('Philip Phillips', 18)}}的其他基金

Transport and Superconductivity in Strongly Correlated Quantum Matter
强相关量子物质中的输运和超导
  • 批准号:
    2111379
  • 财政年份:
    2021
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Strong Electron Correlations and Quantum Critical Phenomena
强电子相关性和量子临界现象
  • 批准号:
    1461952
  • 财政年份:
    2015
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Strong Coupling Physics in Mott and Related Systems
莫特及相关系统中的强耦合物理
  • 批准号:
    1104909
  • 财政年份:
    2011
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Standard Grant
Strong Electron Correlations and Quantum Critical Phenomena
强电子相关性和量子临界现象
  • 批准号:
    0605769
  • 财政年份:
    2006
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
PASI: Workshop on Mottness and Quantum Criticality; Trinidad, June 2005
PASI:莫特尼斯和量子临界性研讨会;
  • 批准号:
    0418330
  • 财政年份:
    2004
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Standard Grant
Strong Electron Correlations and Quantum Critical Phenomena
强电子相关性和量子临界现象
  • 批准号:
    0305864
  • 财政年份:
    2003
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Electron Transport in Correlated Low-Dimensional Systems
相关低维系统中的电子传输
  • 批准号:
    9812422
  • 财政年份:
    1998
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Organic Metals: Transport, Magnetism, and Applications
有机金属:传输、磁性和应用
  • 批准号:
    9510680
  • 财政年份:
    1995
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Electron Transport in Disordered Molecular Systems
无序分子系统中的电子传输
  • 批准号:
    9496134
  • 财政年份:
    1993
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant
Electron Transport in Disordered Molecular Systems
无序分子系统中的电子传输
  • 批准号:
    9201684
  • 财政年份:
    1992
  • 资助金额:
    $ 16.5万
  • 项目类别:
    Continuing Grant

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用于剖析动力细胞作用的化学钉书和化学探针。
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博士后奖学金:MPS-Ascend:早期宇宙实验室:原始现象作为新物理学的探针
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