67 citations · 198 across the 11 of their papers we have counts for
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Ultraviolet/infrared mixing-driven suppression of Kondo screening in the antiferromagnetic quantum critical metal
Francisco Borges, Peter Lunts, Sung-Sik Lee
We study a magnetic impurity immersed in the two-dimensional antiferromagnetic quantum critical metal (AFQCM), using the field-theoretic functional renormalization group. Critical…
Thermopower across Fermi-volume-changing quantum phase transitions without translational symmetry breaking
Peter Lunts, Aavishkar A. Patel, Subir Sachdev
We describe the evolution of low-temperature thermopower across Fermi-volume-changing quantum phase transitions in Kondo lattice models without translational symmetry breaking. Thi…
Strange metals and planckian transport in a gapless phase from spatially random interactions
Aavishkar A. Patel, Peter Lunts, Michael S. Albergo
`Strange' metals that do not follow the predictions of Fermi liquid theory are prevalent in materials that feature superconductivity arising from electron interactions. In recent y…
Localization of overdamped bosonic modes and transport in strange metals
Aavishkar A. Patel, Peter Lunts, Subir Sachdev
A recent theory described strange metal behavior in a model of a Fermi surface coupled a two-dimensional quantum critical bosonic field with a spatially random Yukawa coupling. Wit…
Non-Hertz-Millis scaling of the antiferromagnetic quantum critical metal via scalable Hybrid Monte Carlo
Peter Lunts, Michael S. Albergo, Michael Lindsey
A key component of the phase diagram of many iron-based superconductors and electron-doped cuprates is believed to be a quantum critical point (QCP), delineating the onset of antif…
The Hubbard model on the Bethe lattice via variational uniform tree states: metal-insulator transition and a Fermi liquid
Peter Lunts, Antoine Georges, E. Miles Stoudenmire +1
We numerically solve the Hubbard model on the Bethe lattice with finite coordination number , and determine its zero-temperature phase diagram. For this purpose, we introduce…
Many-body chaos in the antiferromagnetic quantum critical metal
Peter Lunts, Aavishkar A. Patel
We compute the scrambling rate at the antiferromagnetic (AFM) quantum critical point, using the fixed point theory of Phys. Rev. X , 021010 (2017). At this strongly…
Noncommutativity between the low-energy limit and integer dimension limits in the -expansion: a case study of the antiferromagnetic quantum critical metal
Andres Schlief, Peter Lunts, Sung-Sik Lee
We study the field theory for the SU() symmetric antiferromagnetic quantum critical metal with a one-dimensional Fermi surface embedded in general space dimensions between two…
Emergence of a control parameter for the antiferromagnetic quantum critical metal
Peter Lunts, Andres Schlief, Sung-Sik Lee
We study the antiferromagnetic quantum critical metal in space dimensions by extending the earlier one-loop analysis [Sur and Lee, Phys. Rev. B 91, 125136 (2015)] to higher-l…
Exact critical exponents for the antiferromagnetic quantum critical metal in two dimensions
Andres Schlief, Peter Lunts, Sung-Sik Lee
Unconventional metallic states which do not support well defined single-particle excitations can arise near quantum phase transitions as strong quantum fluctuations of incipient or…