Fluctuations and the Higgs Mechanism in Underdoped Cuprates

2019/06/24 by C. Pépin, D. Chakraborty, M. Grandadam +1
Materials Science · Physics and Astronomy · #Cuprate #Higgs mechanism #Iron-based superconductors research #Phase (matter) #Phenomenology (philosophy) #Physics of Superconductivity and Magnetism #Pseudogap #Superconductivity #Superconductivity in MgB2 and Alloys #cond-mat.supr-con

paper · pdf · doi:10.1146/annurev-conmatphys-031218-013125

published as Annual Review of Condensed Matter Physics 2020 11:1, 301-323 · To be published in Annual Review of Condensed Matter Physics

arxiv created 2019/06/24 · openalex created_date 2019/07/12 · openalex publication_date 2020/03/10 · arxiv updated 2020/03/26 · openalex updated_date 2026/08/05

Abstract

The physics of the pseudogap phase of high-temperature cuprate superconductors has been an enduring mystery over the past 30 years. The ubiquitous presence of the pseudogap phase in underdoped cuprates suggests that understanding it is key to unraveling the origin of high-temperature superconductivity. We review various theoretical approaches to this problem, emphasizing the concept of emergent symmetries in the underdoped region of those compounds. We differentiate these theories by considering a few fundamental questions related to the rich phenomenology of these materials. Lastly, we discuss a recent idea regarding two kinds of entangled preformed pairs that open a gap at the pseudogap onset temperature, T * , through a specific Higgs mechanism. We review the experimental consequences of this line of thought.

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