
Research
Research at FTPI includes the major areas of theoretical physics: Particle Physics, Astrophysics and Cosmology, and Condensed Matter and Biophysics
In addition to supporting the faculty, postdoctoral researchers, and graduate students involved in this research at the Institute, FTPI also hosts short-term and long-term visitors and organizes workshops on topics of acute interest in the major areas of study.
High Energy Theory & Particle Astrophysics
The High Energy Theory Group focuses on understand the fundamental forces of nature and cosmology. The unification of the electromagnetic and weak nuclear force is well understood and is continually being tested experimentally. Among the objectives of the group in Minnesota is to push our understanding beyond the Standard Model of electroweak interactions. The strong nuclear force is inherently more complicated and understand the nature of strongly interacting systems is another major objective of the group.
Particle Astrophysics and Cosmology is another aspect of High Energy theory as the Universe provides a laboratory for studying particle interactions at energies much higher than can be achieved experimentally. Topics which are actively pursued include, inflation, the baryon asymmetry, dark matter, nucleosynthesis and large scale structure.
Condensed Matter Theory
As condensed matter theorists, one of our main goals is to understand how the microscopic behavior of a very large number of atoms or molecules is related to the macroscopic properties of solids and liquids. While this certainly applies to objects common in our daily lives, such as kitchen salt or water, we are also interested in quantum versions of solids, liquids, and gases. For example, the properties of many metals are well described in terms of a gas of nearly independent electrons, whereas in other systems the electron-electron interaction is so significant that they behave as strongly correlated quantum liquids.
At first sight, the problem may seem deceivingly straightforward, after all, the ions and electrons forming the atoms only talk to each other via the good old electrostatic repulsion. However, it turns out that the quantum-mechanical collective behavior of condensed matter systems is often very different than just the simple sum of its constituents. This phenomenon, called emergence, is behind many unique and fascinating properties, among which superconductivity is perhaps the best known.
Condensed matter theory is a very broad area, that ranges from concrete applications to more abstract models. At the University of Minnesota, we have a vibrant condensed matter theory group working on a diverse set of topics, such as quantum materials, superconductivity, liquid crystals, quantum magnets, topological quantum matter, disordered systems, and non-equilibrium physics. We also enjoy frequent collaborations with the condensed matter experimental group, creating an engaging atmosphere to perform research in this field.
Recent Publications
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Andrey Chubukov, Artem Abanov |
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Yi-Ming Wu, Shang-Shun Zhang, Artem Abanov, Andrey Chubukov |
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Yi-Ming Wu, Artem Abanov, Andrey Chubukov |
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Valley magnetism, nematicity, and density wave orders in twisted bilayer graphene |
Dmitry Chichinadze, Laura Classen, Andrey Chubukov |
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Laura Classen, Andrey Chubukov, Carsten Honerkamp, Michael Scherer |
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Yi-Ming Wu, Artem Abanov, Yuxuan Wang, Andrey Chubukov |
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Yuxuan Wang, Andrey Chubukov |
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Artem Abanov, Andrey Chubukov |
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Vanuildo de Carvalho, Andrey Chubukov, Rafael Fernandes |
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Eliashberg theory of phonon-mediated superconductivity -- when it is valid and how it breaks down |
Andrey Chubukov, Artem Abanov, Ilya Esterlis, Steven Kivelson |
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Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data |
Xiao Yan Xu, Avraham Klein, Kai Sun, Andrey Chubukov, Zi Yang Meng |
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Normal state properties of quantum critical metals at finite temperature |
Avraham Klein, Yoni Schattner, Erez Berg, Andrey Chubukov |
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The pairing glue in cuprate superconductors from the self-energy revealed via machine learning |
Andrey Chubukov, Jörg Schmalian |
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Dynamics of ion channels via non-Hermitian quantum mechanics |
Tobias Gulden, Alex Kamenev |
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Plasmonic Tuning of the Near Field Heat Transfer in Double Layer Graphene |
Xuzhe Ying, Alex Kamenev | |
Nature of Protected Zero Energy States in Penrose Quasicrystals |
Ezra Day-Roberts, Rafael Fernandes, Alex Kamenev |
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SYK Superconductivity: Quantum Kuramoto and Generalized Richardson Models |
Hanteng Wang, Alexander Chudnovskiy, Alexander Gorsky, Alex Kamenev |
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Multidimensional dark space and its underlying symmetries: towards dissipation-protected qubits |
Raul Santos, Fernando Iemini, Alex Kamenev, Yuval Gefen |
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Marcos Garcia, Kunio Kaneta, Yann Mambrini, Keith Olive |
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The Impact of New d(p,γ)He3 Rates on Big Bang Nucleosynthesis |
Tsung-Han Yeh, Keith Olive, Brian Fields |
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John Ellis, Jason Evans, Natsumi Nagata, Keith Olive, Liliana Velasco-Sevilla |
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Improving Helium Abundance Determinations with Leo P as a Case Study |
Erik Aver, Danielle Berg, Keith Olive, Richard Pogge, John Salzer, Evan Skillman |
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John Ellis, Marcos Garcia, Natsumi Nagata, Dimitri Nanopoulos, Keith Olive, Sarunas Verner |
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John Ellis, Dimitri Nanopoulos, Keith Olive, Sarunas Verner |
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Dean Lee, Ulf-G. Meißner, Keith Olive, Mikhail Shifman, Thomas Vonk |
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Marcos Garcia, Yann Mambrini, Keith Olive, Sarunas Verner |
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Marcos Garcia, Kunio Kaneta, Yann Mambrini, Keith Olive |
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Phenomenology and Cosmology of No-Scale Attractor Models of Inflation |
John Ellis, Dimitri Nanopoulos, Keith Olive, Sarunas Verner |
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Axion Kinetic Misalignment and Parametric Resonance from Inflation |
Raymond Co, Lawrence Hall, Keisuke Harigaya, Keith Olive, Sarunas Verner |
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John Ellis, Marcos Garcia, Natsumi Nagata, Dimitri Nanopoulos, Keith Olive |
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Emilian Dudas, Lucien Heurtier, Yann Mambrini, Keith Olive, Mathias Pierre |
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Matheus Hostert, Kunio Kaneta, Maxim Pospelov |
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Cristina Mondino, Maxim Pospelov, Joshua Ruderman, Oren Slone |
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A. Antognini et al. |
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David McKeen |
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New Constraints on Millicharged Particles from Cosmic-ray Production |
Ryan Plestid, Volodymyr Takhistov, Yu-Dai Tsai, Torsten Bringmann, Alexander Kusenko, Maxim Pospelov |
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Jorge Martin Camalich, Maxim Pospelov, Pham Ngoc Hoa Vuong, Robert Ziegler, Jure Zupan |
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J. Albert, D. Budker, K. Chance, I.E. Gordon, F. Pedreros Bustos, M. Pospelov, S.M. Rochester, H.R. Sadeghpour |
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David McKeen, Maxim Pospelov, Nirmal Raj |
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Maxim Pospelov, Harikrishnan Ramani |
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Novel multi-lepton signatures of dark sectors in light meson decays |
Matheus Hostert, Maxim Pospelov |
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Gaia Lanfranchi, Maxim Pospelov, Philip Schuster |
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Roni Harnik, Ryan Plestid, Maxim Pospelov, Harikrishnan Ramani |
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J. Albert, D. Budker, K. Chance, I.E. Gordon, F. Pedreros Bustos, M. Pospelov, S.M. Rochester, H.R. Sadeghpour |
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Edges and Endpoints in 21-cm Observations from Resonant Photon Production |
Andrea Caputo, Hongwan Liu, Siddharth Mishra-Sharma, Maxim Pospelov, Joshua Ruderman, Alfredo Urbano |
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Constraints on Decaying Sterile Neutrinos from Solar Antineutrinos |
Matheus Hostert, Maxim Pospelov |
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David McKeen, Maxim Pospelov, Nirmal Raj |
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New limits on dark photons from solar emission and keV scale dark matter |
Haipeng An, Maxim Pospelov, Josef Pradler, Adam Ritz |
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Mikhail Shifman |
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Operator Product Expansion and Calculation of the Two-Loop Gell-Mann-Low Function |
Mikhail Shifman, Arkady Vainshtein |
Sov. J. Nucl. Phys. 44, 321 (1986) |
Mikhail Shifman |
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String "Baryon'' in Four-Dimensional N = 2 Supersymmetric QCD from 2D-4D Correspondence |
E. Ievlev, M. Shifman, A. Yung |
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Jin Chen, Chao-Hsiang Sheu, Mikhail Shifman, Gianni Tallarita, Alexei Yung |
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Daniel Schubring, Mikhail Shifman |
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Mikhail Shifman |
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Hidden Quantum Hall Stripes in AlxGa1−xAs/Al0.24Ga0.76As Quantum Wells |
X. Fu, Yi Huang, Q. Shi, B. Shklovskii, M. Zudov, G. Gardner, M. Manfra |
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Spectral rigidity of non-Hermitian symmetric random matrices near Anderson transition |
Yi Huang, B. Shklovskii |
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Isotropically conducting (hidden) quantum Hall stripe phases in a two-dimensional electron gas |
Yi Huang, M. Sammon, M. Zudov, B. Shklovskii |