Kevin Ingersent

PhD University of Pennsylvania (1990)

ingersent@ufl.edu
Office: 2162
352.392.8748

Personal webpage
Research Group: Condensed Matter Theory

Research Focus

Research addresses aspects of strongly correlated electron systems: materials in which the motion of each charge carrier is greatly influenced by that of the other carriers. Current work focuses on “non-Fermi-liquid” physics (metallic behavior very different from that of conventional metals such as copper) arising near the absolute zero of temperature from (i) a bulk phase transition between different quantum-mechanical grounds states of a compound or alloy; or (ii) a transition between ground states of a magnetic nanostructure such as a quantum-dot device. The essential element in both cases is competition between different spatially extended degrees of freedom (e.g., conduction electrons, magnetic interactions, electromagnetic fluctuations) for control over the behavior of local spin degrees of freedom.

Selected Publications

“The Aubry-André Anderson model: Magnetic impurities coupled to a fractal spectrum,” A.-K. Wu, D. Bauernfeind, X. Cao, S. Gopalakrishnan, K. Ingersent, and J. H. Pixley, Phys. Rev. B 106, 165123 (2022).

“Sequential localization of a complex electron fluid,” V. Martelli, A. Cai, E. M. Nica, M. Taupin, A. Prokofiev, C.-C. Liu, H.-H. Lai, R. Yu, K. Ingersent, R. Küchler, A. M. Strydom, D. Geiger, J. Haenel, J. Larrea, Q. Si, and S. Paschen, Proc. Natl. Acad. Sci. USA 116, 17701–17706 (2019).

“Long-range entanglement near a Kondo-destruction quantum critical point,” C. E. Wagner, T. Chowdhury, J. H. Pixley, and K. Ingersent, Phys. Rev. Lett. 121, 147602 (2018).

“Influence of Rashba spin-orbit coupling on the Kondo effect,” A. Wong, S. E. Ulloa, N. Sandler, and K. Ingersent, Phys. Rev. B 93, 075148 (2016).

“Kondo destruction and valence fluctuations in an Anderson model,” J. H. Pixley, S. Kirchner, K. Ingersent, and Q. Si, Phys. Rev. Lett. 109, 086403 (2012).

“Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers,” L. G. G. V. Dias da Silva, N. Sandler, P. Simon, K. Ingersent, and S. E. Ulloa, Phys. Rev. Lett. 102, 166806 (2009).

“Magnetic quantum phase transition in an anisotropic Kondo lattice,” M. T. Glossop and K. Ingersent, Phys. Rev. Lett. 99, 227203 (2007).

“Zero-field Kondo splitting and quantum-critical transition in double quantum dots,” L. G. G. V. Dias da Silva, N. P. Sandler, K. Ingersent, and S. E. Ulloa, Phys. Rev. Lett. 97, 096603 (2006).

“Kondo screening in a magnetically frustrated nanostructure: Exact results on a stable, non-Fermi-liquid phase,” K. Ingersent, A. W. W. Ludwig, and I. Affleck, Phys. Rev. Lett. 95, 257204 (2005).

“Numerical renormalization-group study of the Bose-Fermi Kondo model,” M. T. Glossop and K. Ingersent, Phys. Rev. Lett. 95, 067202 (2005).

“Locally critical quantum phase transitions in strongly correlated metals,” Q. Si, S. Rabello, K. Ingersent, and J. L. Smith, Nature 413, 804 (2001).

“Renormalization-group study of Anderson and Kondo impurities in gapless Fermi systems,” C. Gonzalez-Buxton and K. Ingersent, Phys. Rev. B. 57, 14254 (1998).