Arbeitsgruppe Theorie von Graphen und verwandten Nanostrukturen

Leiter: Prof. Dr. Igor Gornyi

Wir untersuchen den Transport in Graphen-Strukturen: die Leitfähigkeit für verschiedene Streuer-Typen, Quanteninterferenz-Phänomene, Transport-Regime (Ballistik, Lokalisierung, Diffusion, Kritikalität und Nichtgleichgewichts-Physik.

Insbesondere untersuchen wir

den Einfluss der Elektron-Phonon-Kupplung auf die elastischen Eigenschaften von Graphen-Bilagen und -Monolagen,
Graphen im starken Nichtgleichgewicht, die Relaxation der heißen Ladungsträger
den Coulomb-Widerstand in Graphen-Bilagen,
die Transport- und spektralen Eigenschaften von Graphen mit starken Streuern.

Weitere Forschungsthemen

Messanordnung für ballistischen Transport in Graphen mit verschiedenen starken Streuern

Coulomb-Widerstand in Graphen

Veröffentlichungen

(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

Mitarbeiter (in alphabetischer Reihenfolge)
Name	Tel +49 -721 -608	Geb.-Raum	E-Mail
Gornyi, Igor	28106	640-330	igor gornyiGgn9∂kit edu
Pöpperl, Paul	47007	30.23-10.14	paul.poepperlGgn9∂kit edu

Neueste Veröffentlichungen

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