## Pallab Goswami

### Assistant Professor, Physics and Astronomy

- pallab.goswami@northwestern.edu
- Tech F239

### Research Interests

The main goal of condensed matter research is to study emergent low temperature phases in correlated and disordered materials. A comprehensive understanding of strongly correlated materials requires several complementary analytical and numerical methods. My research interests are focused on developing such theoretical tools for addressing emergent quantum phases and quantum phase transitions in strongly correlated and disordered materials, with an emphasis on underlying topological properties. This is motivated by the recent progress in quantum material science, which is allowing us to study interplay between strong electronic interactions and spin orbit coupling in iridium based oxides, Heusler and heavy fermion compounds, where phase diagrams can display a confluence of competing orders, topological properties and exotic quantum critical phenomena. I enjoy working on abstract theoretical problems and close collaborations with different experimental groups.

### Awards

Dirac Postdoctoral Fellowship, National High Magnetic Field Laboratory, September 2011-August 2013

G. K. Walters Postdoctoral Fellowship, Rice University, September 2008-August 2010

### Selected Publications

Evidence for magnetic Weyl fermions in a correlated metal, K. Kuroda *et al.*, Nature Materials, DOI: 10.1038/NMAT4987 (2017)

Skyrmion defects and competing singlet orders in a half-filled antiferromagnetic Kondo-Heisenberg model on the honeycomb lattice, C.-C. Liu, P. Goswami, and Q. Si, Phys. Rev. B 96, 125101 (2017)

Metallic phases from disordered (2+1)-dimensional quantum electrodynamics, P. Goswami, H. Goldman, and S. Raghu, Phys. Rev. B 95, 235145 (2017)

Single particle excitations in disordered Weyl fluids, J. H. Pixley, Y.-Z. Chou, P. Goswami, D. A. Huse, R. Nandkishore, L. Radzihovsky, and S. Das Sarma, Phys. Rev. B 95, 235101 (2017)

Quantum phases of disordered three-dimensional Majorana-Weyl fermions, J. H. Wilson, J. H. Pixley, P. Goswami, and S. Das Sarma, Phys. Rev. B 95, 155122 (2017)

Dynamic zero modes of Dirac fermions and competing singlet phases of antiferromagnetic order, P. Goswami, and Q. Si, Phys. Rev. B 95, 224438 (2017)

Interacting Weyl fermions: phases, phase transitions and global phase diagram, B. Roy, P. Goswami, and V. Juricic, Phys. Rev. B 95, 201102(R) (2017)

Chiral anomaly and longitudinal magnetotransport in type-II Weyl semimetals, G. Sharma, P. Goswami, and S. Tewari, Phys. Rev. B 96, 045112 (2017)

Superuniversality of topological quantum phase transition and global phase diagram of dirty topological systems in three dimensions, P. Goswami and S. Chakravarty, Phys. Rev. B 95, 075131 (2017)

Competing orders and topology in the global phase diagram of pyrochlore iridates, P. Goswami, B. Roy, and S. Das Sarma, Phys. Rev. B 95, 085120 (2017)

Inter-planar coupling dependent magnetoresistivity in high purity layered metals, N. Kikugawa, P. Goswami, A. Kiswandhi, E. S. Choi, D. Graf, R. E. Baumbach, J. S. Brooks, K. Sugii, Y. Iida, M. Nishio, S. Uji, T. Terashima, P. M. C. Rourke, N. E. Hussey, H. Takatsu, S. Yonezawa, Y. Maeno, and L. Balicas, Nature Commun., 7, 10903 (2016)

Nernst and magneto-thermal conductivity in a lattice model of Weyl fermions, G. Sharma, P. Goswami, and S. Tewari, Phys. Rev. B 93, 035116 (2016)

Continuous and discontinuous topological quantum phase transitions, B. Roy, P. Goswami, and J. D. Sau, Phys. Rev. B 94, 041101(R) (2016)

Disorder driven itinerant quantum criticality of three dimensional massless Dirac fermions, J. H. Pixley, P. Goswami, and S. Das Sarma, Phys. Rev. B 93, 085103 (2016)

A calculation for polar Kerr effect in high temperature cuprate superconductors, G. Sharma, S. Tewari, P. Goswami, V. M. Yakovenko, and S. Chakravarty, Phys. Rev. B 93, 075156 (2016)

Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal, P. Goswami, J. H. Pixley, and S. Das Sarma, Phys. Rev. B 92, 075205 (2015)

Anderson localization and the quantum phase diagram of three dimensional disordered Dirac semimetals, J. H. Pixley, P. Goswami, and S. Das Sarma, Phys. Rev. Lett. 115, 076601 (2015)

Optical gyrotropy as a test for dynamic chiral magnetic effect of Weyl semimetals, P. Goswami, G. Sharma, and S. Tewari, Phys. Rev. B 92, 161110(R) (2015)

Topological Weyl Superconductor to Diffusive Thermal Hall Metal Crossover in the B-Phase of UPt_3, P. Goswami, and A. H. Nevidomskyy, Phys. Rev. B 92, 214504 (2015)

Axionic superconductivity in three dimensional doped narrow gap semiconductors, P. Goswami, and B. Roy, Phys. Rev. B 90, 041301(R), (2014)

Kondo Destruction and Quantum Criticality in Kondo Lattice Systems, Q. Si, J. H. Pixley, E. Nica, S. J. Yamamoto, P. Goswami, R. Yu, and S. Kirchner, J. Phys. Soc. Jpn. 83, 061005 (2014)

Z_2 index for gapless fermionic modes in the vortex core of three dimensional paired Dirac fermions, B. Roy, and P. Goswami, Phys. Rev. B 89, 144507 (2014)

Topological defects of Neel order and Kondo singlet formation for Kondo-Heisenberg model on a honeycomb lattice, P. Goswami, and Q. Si, Phys. Rev. B 89, 045124 (2014)

Superconductivity at the border of electron localization and itinerancy, R. Yu, P. Goswami, Q. Si, P. Nikolic, J. X. Zhu, Nat. Commun. 4, 2783 (2013)

Axionic field theory of (3+1)-dimensional Weyl semi-metals, P. Goswami and S. Tewari, Phys. Rev B 88, 245107 (2013)

Quantum criticality between topological and band insulators in 3+1-dimensions, P. Goswami and S. Chakravarty, Phys. Rev. Lett. 107, 196803 (2011)

Effects of the Berry phase and instantons in one dimensional Kondo-Heisenberg model, P. Goswami and Q. Si, Phys. Rev. Lett. 107, 126404 (2011)

Superconductivity in multi-orbital t-J_1-J_2 model and its implications for iron pnictides, P. Goswami, P. Nikolic, and Q. Si, Europhys. Lett. 91, 37006 (2010)

Competing order, Fermi surface reconstruction, and quantum oscillations in underdoped high-temperature superconductors, I. Dimov, P. Goswami, X. Jia, and S. Chakravarty, Phys. Rev. B 78, 134529 (2008)

Dissipation and criticality in the lowest Landau level of grapheme, X. Jia, P. Goswami, and S. Chakravarty, Phys. Rev. Lett. 101, 036805 (2008)

Rounding by disorder of first-order quantum phase transitions: emergence of quantum critical points, P. Goswami, D. Schwab, and S. Chakravarty, Phys. Rev. Lett. 100, 015703 (2008)