Publications summary: h-index 14 (Google Scholar), >1900 citations, 11 Letters: 4 Nano Letters, 4 Physical Review Letters, 3 Physical Review B Letters, several single-author papers, 4 published Letters as PI [Carr...Kruchkov, Nano Lett, 2020], [Guan, Yazyev, Kruchkov, Phys Rev B Lett 2022], [Guan, Yazyev, Kruchkov, Nano Lett 2023], [Brzezinska,Guan, Yazyev, Sachdev, Kruchkov, Phys Rev Lett 2023].
***NEW PAPER***
Alexander Kruchkov and Shinsei Ryu, Noise probing of topological band gaps in dispersionless quantum states (31 Aug 2023).
Recent talks: "Flat electronic bands and where to Find Them" 06/16/2021 - Stockholm University [slides]
06/17/2021 - Swiss Federal Institute of Technology, EPFL [slides]
07/07/2021 - Swiss Federal Institute of Technology, ETHZ [slides] "The search of ideal dispersionless material" 11/22/2021 - Branco Weiss Society in Science, ETHZ
"Engineering flat bands from first
quantum-geometrical principles". 12/21/2021 - Universität zu Köln
09/01/2022 - Tel-Aviv University
16/03/2022 - APS March Meeting 2022, invited (link)
30/05/2022 - Niels Bohr Institute (job talk)
30/06/2022 - Swiss Physical Society (invited)
"New perspective on unconventional superconductivity, strange metallicity, and fractional quantum Hall effect from quantum geometry"
27.10.2022 - "Quantum geometry and quantum transport", EPFL, CH
28.10.2022 - "Quantum geometry and quantum transport", University of Kharkiv, Ukraine
Upcoming talks
11.05.2023 - Les Diablerets, Geometric aspects of quantum Hall effect (host: Semyon Klevtsov)
01.06.2023 - Finland, Univ. Aalto, Helsinki (host: Päivi Törmä)
07.06.2023 - Theory Seminar, EPFL, Lausanne (host: Joao Penedones)
16.06.2023 - Theory Seminar, University of Zurich (host: Titus Neupert)
Favourite papers:
[1] A. Kruchkov, Quantum transport anomalies in dispersionless electronic bands, Letter in Physical Review B (2023).
[2] A. Kruchkov, "Quantum geometry, flat Chern bands, and Wannier orbital quantization", Letter in Physical Review B 105, L241102 (2022).
[3] A. Kruchkov, A. Patel, P. Kim, S. Sachdev, Thermoelectric power of Sachdev-Ye-Kitaev islands: Probing Bekenstein-Hawking entropy in quantum matter experiments, Phys. Rev. B 101, 205148 (2020).
Outreach: Lindau Nobel Laureate Meeting release.
[4] G. Tarnopolsky, A. J. Kruchkov, A. Vishwanath, Origin of Magic Angles in Twisted Bilayer Graphene, Physical Review Letters 122, 106405 (2019).
Press release: Quanta Magazine (2019) and Quanta Magazine (2021).
[5] A. Kruchkov, One-dimensional Bose-Einstein condensation of photons in a microtube , Phys. Rev. A 93, 043817 (2016).
Related experiment: Nature Physics 14, 1173 (2018).
[6] S. Carr, C. Li, Z. Zhu, E. Kaxiras, S. Sachdev, A.J. Kruchkov, Ultraheavy and ultrarelativistic Dirac quasiparticles in sandwiched graphenes, Nano Letters (2020).
Remark: The theoretical paper which lead to experiments Nature 590, 249 (2021) and Science 371, 6534, 1133 (2021). See also comment by Mike Zaletel.
Letters as PI:
[1] M. Brzezinska, Y. Guan, O. V. Yazyev, S. Sachdev, A. Kruchkov, Engineering SYK interactions in disordered graphene flakes under realistic experimental conditions, Phys Rev Lett (2023).
[2] Y. Guan, O.V. Yazyev, A. Kruchkov, Unconventional Flat Chern Bands and 2e Charges in Skyrmionic Moiré Superlattices, Nano Letters (2023)
[3] Y. Guan, O.V. Yazyev, A. Kruchkov, Re-entrant magic-angle phenomena in twisted bilayer graphene in integer magnetic fluxes, Physical Review B (Letter), 106, L121115 (2022).
[4] S. Carr, C. Li, Z. Zhu, E. Kaxiras, S. Sachdev, A.J. Kruchkov, Ultraheavy and ultrarelativistic Dirac quasiparticles in sandwiched graphenes, Nano Letters (2020).
[5] I. Lukin, A. Sotnikov, A. Kruchkov, Unconventional superfluidity and quantum geometry of topological bosons (July 2023)
Full list:
[25] I. Lukin, A. Sotnikov, A. Kruchkov, Unconventional superfluidity and quantum geometry of topological bosons (July 2023)
[24] A. Kruchkov, Quantum transport anomalies in dispersionless electronic bands, Letter in Physical Review B, 107, L241102 (2023).
[23] M. Brzezinska, Y. Guan, O. V. Yazyev, S. Sachdev, A. Kruchkov, Engineering SYK interactions in disordered graphene flakes under realistic experimental conditions, Physical Review Letters, 131, 036503 (2023).
[22] Y. Guan, O.V. Yazyev, A. Kruchkov, Re-entrant magic-angle phenomena in twisted bilayer graphene in integer magnetic fluxes, Physical Review B (Letter), 106, L121115 (2022).
[21] Y. Guan, O.V. Yazyev, A. Kruchkov, Unconventional Flat Chern Bands and 2e Charges in Skyrmionic Moiré Superlattices, Nano Letters (2023)
[20] [Letter] A. Kruchkov, Origin of band flatness and constraints of higher Chern numbers (2021), published as Letter "Quantum geometry, flat Chern bands, and Wannier orbital quantization" in Physical Review B 105, L241102 (2022).
[19] [Editors' Suggestion] A. Kruchkov, A. Patel, P. Kim, S. Sachdev, Thermoelectric power of Sachdev-Ye-Kitaev islands: Probing Bekenstein-Hawking entropy in quantum matter experiments, Phys. Rev. B 101, 205148 (2020).
[18] S. Carr, C. Li, Z. Zhu, E. Kaxiras, S. Sachdev, A.J. Kruchkov, Ultraheavy and ultrarelativistic Dirac quasiparticles in sandwiched graphenes, Nano Letters (2020).
[17] F. Haddadi, Q. Wu, A. J. Kruchkov, O.V. Yazyev, Moiré Flat Bands in Twisted Double Bilayer Graphene, Nano Letters (2020).
[16] A. J Kruchkov, Band flattening in twisted transition metal dichalcogenides, manuscript in preparation.
[15] D.S. Borgnia, A.J. Kruchkov and R.-J. Slager, Non-Hermitian Boundary Modes, Phys. Rev. Lett. 124, 056802 (2020).
[14] [Editors' Suggestion] E. Khalaf, A. J. Kruchkov, G. Tarnopolsky, A. Vishwanath, Magic Angle Hierarchy in Twisted Graphene Multilayers, Phys. Rev. B 100, 085109 (2019).
[13] [Editors' Suggestion] G. Tarnopolsky, A. J. Kruchkov, A. Vishwanath, Origin of Magic Angles in Twisted Bilayer Graphene, Physical Review Letters 122, 106405 (2019)
[12] J. S. White, I. Živković, A. J. Kruchkov, M. Bartkowiak, A. Magrez, and H. M. Rønnow, Electric-Field-Driven Topological Phase Switching and Skyrmion-Lattice Metastability in Magnetoelectric Cu2OSeO3. Phys. Rev. Apllied, 10, 014021 (2018).
[11] A. J. Kruchkov, J. S. White, M. Bartkowiak, I. Zivcovic, A. Magrez, H.M. Rønnow, Direct control of the skyrmion phase stability by electric field in a magnetoelectric insulator. Scientific Reports, 8, 10466 (2018).
[10] P.Huang, M. Cantoni, A. Kruchkov, R. Jayaraman, A. Magrez, F. Carbone, H.M. Rønnow, In situ Electric Field Skyrmion Creation in Magnetoelectric Cu2OSeO3. Nano Letters, 2018, 18 (8), pp 5167–5171.
[9] A. J. Kruchkov and H.M. Rønnow, Skyrmion Lattices in Electric Fields. Preprint: arXiv 1702.08863. Submitted to Phys.Rev. B
[8] A. Kruchkov, One-dimensional Bose-Einstein condensation of photons in a microtube , Phys. Rev. A 93, 043817 (2016).
[7] [Editors' Suggestion] G. Berruto, I. Madan, Y. Murooka, E. Pomarico, G. M. Vanacore, J. Rajeswari, R. Lamb, P. Huang, A.J. Kruchkov, Y. Togawa, T. LaGrange, D. McGrouther, H. M. Rønnow and F. Carbone, Laser-induced Skyrmion writing and erasing in an ultrafast cryo-Lorentz transmission electron microscope, Phys. Rev. Lett., 120 (2018)
[6] I. Levatic, P. Popcevic, V. Surija, A. Kruchkov, H. Berger, A. Magrez, J. S. White, H. M. Rønnow & I. Zivkovic, Dramatic pressure-driven enhancement of bulk skyrmion stability, Scientific Reports 6, 21347 (2016).
[5] A. Kruchkov, Radiation spectrum of systems with condensed light. Preprint: arXiv:1404.2561
[4] A. Kruchkov, Bose-Einstein condensation of light in a cavity, Phys. Rev. A 89, 033862 (2014).
[3] A. Kruchkov, Y. Slyusarenko, Bose-Einstein condensation of photons in an ideal atomic gas, Phys. Rev. A 88, 013615 (2013).
[2] Y. Slyusarenko, A. Kruchkov, Mechanism of collisionless sound damping in dilute Bose gas with condensate , Cond.Mat.Phys., vol. 16, No. 2, 23004, (2013).
[1] A. Kruchkov, Reflections on the 66th Lindau Nobel Laureate Meeting, Condens. Matter, 1(1), 13 (2016) doi: 10.3390/condmat1010013.