Working Group Theory of Graphene and Related Nanostructures


Head: Prof. Dr. Igor Gornyi

We study transport in graphene structures, including conductivity for different types of scatterers, quantum interference phenomena, transport regimes (ballistics, localization, diffusion, criticality), interaction effects, and non-equilibrium physics.

In particular, we investigate:

  • Influence of electron-phonon coupling on elastic properties of graphene bilayers and monolayers
  • Strongly nonequilibrium graphene, relaxation of hot carriers
  • Double-layer graphene (Coulomb drag)
  • Transport and spectral properties of graphene with strong scatterers

Other research topics

Ballistic graphene setup with various strong scatterers
Coulomb drag in graphene

 

Publications

(1)   B. N. Narozhny et al., Hydrodynamic Approach to Electronic Transport in Graphene: Energy Relaxation, Front. Phys. 9 (2021) 640649
(2)   B. N. Narozhny et al., Hydrodynamic Approach to Electronic Transport in Graphene, Ann. Phys. 529 (2017) 1700043
(3)   M. Kamada et al., Strong magnetoresistance in a graphene Corbino disk at low magnetic fields, Phys. Rev. B 104 (2021) 115432
(4)   R. Kraft et al., Valley Subband Splitting in Bilayer Graphene Quantum Point Contacts, Phys. Rev. Lett. 121 (2018) 257703
(5)   P. M. Ostrovsky et al., Electron transport in disordered graphene, Phys. Rev. B 74 (2006) 235443

 

Members (in alphabetical order)
Name Tel
+49
-721
-608 		Bld.-Room E-Mail
Gornyi, Igor 28106
640-330
igor gornyiGgn9∂kit edu
Pöpperl, Paul 47007
30.23-10.14
paul.poepperlGgn9∂kit edu

Recent Publications


Dilute Measurement-Induced Cooling into Many-Body Ground States
Langbehn, J.; Snizhko, K.; Gornyi, I.; Morigi, G.; Gefen, Y.; Koch, C. P.
2024. PRX Quantum, 5 (3), Art.-Nr.: 030301. doi:10.1103/PRXQuantum.5.030301
Ancilla quantum measurements on interacting chains: Sensitivity of entanglement dynamics to the type and concentration of detectors
Doggen, E. V. H.; Gornyi, I. V.; Mirlin, A. D.
2024. Physical Review B, 109 (22), 224203. doi:10.1103/PhysRevB.109.224203
Role of Fock-space correlations in many-body localization
Scoquart, T.; Gornyi, I. V.; Mirlin, A. D.
2024. Physical Review B, 109 (21), Art.-Nr.: 214203. doi:10.1103/PhysRevB.109.214203
Quantum state engineering by steering in the presence of errors
Medina-Guerra, E.; Kumar, P.; Gornyi, I. V.; Gefen, Y.
2024. Physical Review Research, 6 (2), Art.-Nr.: 023159. doi:10.1103/PhysRevResearch.6.023159
Measurement-Induced Phase Transition for Free Fermions above One Dimension
Poboiko, I.; Gornyi, I. V.; Mirlin, A. D.
2024. Physical Review Letters, 132 (11), Art.-Nr.: 110403. doi:10.1103/PhysRevLett.132.110403
Localization, fractality, and ergodicity in a monitored qubit
Pöpperl, P.; Gornyi, I. V.; Saakian, D. B.; Yevtushenko, O. M.
2024. Physical Review Research, 6 (1), Art.-Nr.: 013313. doi:10.1103/PhysRevResearch.6.013313
Engineering unsteerable quantum states with active feedback
Morales, S.; Gefen, Y.; Gornyi, I.; Zazunov, A.; Egger, R.
2024. Physical Review Research, 6 (1), Art.-Nr.: 013244. doi:10.1103/PhysRevResearch.6.013244
Theory of Free Fermions under Random Projective Measurements
Poboiko, I.; Pöpperl, P.; Gornyi, I. V.; Mirlin, A. D.
2023. Physical Review X, 13 (4), Art.-Nr.: 041046. doi:10.1103/PhysRevX.13.041046
Two-dimensional electron hydrodynamics in a random array of impenetrable obstacles: Magnetoresistivity, Hall viscosity, and the Landauer dipole
Gornyi, I. V.; Polyakov, D. G.
2023. Physical Review B, 108 (16), Art.-Nr.: 165429. doi:10.1103/PhysRevB.108.165429
Evolution of many-body systems under ancilla quantum measurements
Doggen, E. V. H.; Gefen, Y.; Gornyi, I. V.; Mirlin, A. D.; Polyakov, D. G.
2023. Physical Review B, 107 (21), Article no: 214203. doi:10.1103/PhysRevB.107.214203
Measurement-Driven Navigation in Many-Body Hilbert Space: Active-Decision Steering
Herasymenko, Y.; Gornyi, I.; Gefen, Y.
2023. PRX Quantum, 4 (2), Art.-Nr.: 020347. doi:10.1103/PRXQuantum.4.020347
Corbino magnetoresistance in neutral graphene
Gall, V.; Narozhny, B. N.; Gornyi, I. V.
2023. Physical Review B, 107 (23), Art.Nr.: 235401. doi:10.1103/PhysRevB.107.235401
Quantum corrections to the magnetoconductivity of surface states in three-dimensional topological insulators
Shi, G.; Gao, F.; Li, Z.; Zhang, R.; Gornyi, I.; Gutman, D.; Li, Y.
2023. Nature Communications, 14 (1), Art.-Nr.: 2596. doi:10.1038/s41467-023-38256-4
Measurements on an Anderson chain
Pöpperl, P.; Gornyi, I. V.; Gefen, Y.
2023. Physical Review B, 107 (17), Art.-Nr.: 174203. doi:10.1103/PhysRevB.107.174203
Electronic viscosity and energy relaxation in neutral graphene
Gall, V.; Narozhny, B. N.; Gornyi, I. V.
2023. Physical Review B, 107 (4), Art.-Nr.: 045413. doi:10.1103/PhysRevB.107.045413
Memory effects in the density-wave imbalance in delocalized disordered systems
Pöpperl, P.; Gornyi, I. V.; Mirlin, A. D.
2022. Physical Review B, 106 (9), Art.-Nr.: 094201. doi:10.1103/PhysRevB.106.094201
Spin and valley degrees of freedom in a bilayer graphene quantum point contact: Zeeman splitting and interaction effects
Gall, V.; Kraft, R.; Gornyi, I. V.; Danneau, R.
2022. Physical Review Research, 4 (2), Art.-Nr.: 023142. doi:10.1103/PhysRevResearch.4.023142
Delta- noise for weak tunneling in one-dimensional systems: Interactions versus quantum statistics
Zhang, G.; Gornyi, I. V.; Spånslätt, C.
2022. Physical Review B, 105 (19), Art.-Nr.: 195423. doi:10.1103/PhysRevB.105.195423
Generalized quantum measurements with matrix product states: Entanglement phase transition and clusterization
Doggen, E. V. H.; Gefen, Y.; Gornyi, I. V.; Mirlin, A. D.; Polyakov, D. G.
2022. Physical Review Research, 4 (2), Artkl.Nr. 023146. doi:10.1103/PhysRevResearch.4.023146
Many-body localization in a tilted potential in two dimensions
Doggen, E. V. H.; Gornyi, I. V.; Polyakov, D. G.
2022. Physical Review B, 105 (13), Artk.Nr.: 134204. doi:10.1103/PhysRevB.105.134204
Many-body localization in large systems: Matrix-product-state approach
Doggen, E. V. H.; Gornyi, I. V.; Mirlin, A. D.; Polyakov, D. G.
2021. Annals of physics, 435 (Part 1), Art. Nr.: 168437. doi:10.1016/j.aop.2021.168437
Many-body localization in the interpolating Aubry-André-Fibonacci model
Štrkalj, A.; Doggen, E. V. H.; Gornyi, I. V.; Zilberberg, O.
2021. Physical review research, 3 (3), 033257 1–13. doi:10.1103/PhysRevResearch.3.033257
Resistance of two-dimensional superconducting films
König, E. J.; Protopopov, I. V.; Levchenko, A.; Gornyi, I. V.; Mirlin, A. D.
2021. Physical Review B, 104 (10), Article no: L100507. doi:10.1103/PhysRevB.104.L100507
Strong magnetoresistance in a graphene Corbino disk at low magnetic fields
Kamada, M.; Gall, V.; Sarkar, J.; Kumar, M.; Laitinen, A.; Gornyi, I.; Hakonen, P.
2021. Physical Review B, 104 (11), Article no: 115432. doi:10.1103/PhysRevB.104.115432
Contacts, equilibration, and interactions in fractional quantum Hall edge transport
Spånslätt, C.; Gefen, Y.; Gornyi, I. V.; Polyakov, D. G.
2021. Physical Review B, 104 (11), 115416. doi:10.1103/PhysRevB.104.115416
Measurement-induced steering of quantum systems
Roy, S.; Chalker, J. T.; Gornyi, I. V.; Gefen, Y.
2021. Physical review research, 2 (3), Art.-Nrt.: 033347. doi:10.1103/PhysRevResearch.2.033347
Anti-Poiseuille flow in neutral graphene
Narozhny, B. N.; Gornyi, I. V.; Titov, M.
2021. Physical Review B, 104 (7), Art.-Nr.: 075443. doi:10.1103/PhysRevB.104.075443
Heating of inhomogeneous electron flow in the hydrodynamic regime
Zhang, G.; Kachorovskii, V.; Tikhonov, K.; Gornyi, I.
2021. Physical review / B, 104 (7), Art.-Nr. 075417. doi:10.1103/PhysRevB.104.075417
Multifractally-enhanced superconductivity in thin films
Burmistrov, I. S.; Gornyi, I. V.; Mirlin, A. D.
2021. Annals of physics, 435 (1), Art.Nr. 168499. doi:10.1016/j.aop.2021.168499
Hydrodynamic Approach to Electronic Transport in Graphene: Energy Relaxation
Narozhny, B. N.; Gornyi, I. V.
2021. Frontiers in physics, 9, Asrt.-Nr.: 640649. doi:10.3389/fphy.2021.640649
Hydrodynamic collective modes in graphene
Narozhny, B. N.; Gornyi, I. V.; Titov, M.
2021. Physical Review B, 103 (11), Art.Nr. 115402. doi:10.1103/PhysRevB.103.115402
Stark many-body localization: Evidence for Hilbert-space shattering
Doggen, E. V. H.; Gornyi, I. V.; Polyakov, D. G.
2021. Physical Review B, 103 (10), Art.-Nr.: L100202. doi:10.1103/PhysRevB.103.L100202
Majorana modes in emergent-wire phases of helical and cycloidal magnet-superconductor hybrids
Rex, S.; Gornyi, I. V.; Mirlin, A. D.
2020. Physical review / B, 102 (22), 224501. doi:10.1103/PhysRevB.102.224501
Dissipation without resistance: Imaging impurities at quantum Hall edges
Zhang, G.; Gornyi, I. V.; Mirlin, A. D.
2020. Physical review research, 2 (1), Art.-Nr.: 013337. doi:10.1103/PhysRevResearch.2.013337
Slow Many-Body Delocalization beyond One Dimension
Doggen, E. V. H.; Gornyi, I. V.; Mirlin, A. D.; Polyakov, D. G.
2020. Physical review letters, 125 (15), Art.-Nr.: 155701. doi:10.1103/PhysRevLett.125.155701
Absolute Poisson’s ratio and the bending rigidity exponent of a crystalline two-dimensional membrane
Saykin, D. R.; Gornyi, I. V.; Kachorovskii, V. Y.; Burmistrov, I. S.
2020. Annals of physics, 414, Art. Nr.: 168108. doi:10.1016/j.aop.2020.168108
Enhancement of transparency in a double-barrier structure by the Fano antiresonance
Klier, J.; Krainov, I. V.; Dmitriev, A. P.; Gornyi, I. V.
2020. Physical review / B, 101 (24), Art.Nr. 245425. doi:10.1103/PhysRevB.101.245425