Publications and preprints
- Unsupervised Model Learning for Quantum Impurity Systems
Jonas B. Rigo, Andrew K. Mitchell
Preprint, arXiv:2401.13600 (2024)
Keywords: Machine learning, effective models, downfolding, quantum impurities, quantum dots, molecular electronics
- Multiparameter critical quantum metrology with impurity probes
George Mihailescu, Abolfazl Bayat, Steve Campbell, Andrew K. Mitchell
Preprint, arXiv:2311.16931 (2023)
Keywords: Metrology, quantum sensing, critical quantum metrology, thermometry, multiparameter estimation
- Many-body quantum interference route to the two-channel Kondo effect: Inverse design for molecular junctions
Sudeshna Sen and Andrew K. Mitchell
Preprint, arXiv:2310.14775 (2023)
Keywords: Molecular electronics, quantum dots, inverse design, rational design, quantum interference, machine learning
- Kondo effect in twisted bilayer graphene
A. S. Shankar, D. O. Oriekhov, Andrew K. Mitchell, Lars Fritz
Phys. Rev. B 107, 245102 (2023)
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Preprint, arXiv:2303.02492 (2023)
Keywords: Twisted Bilayer Graphene, Magic Angle, Moire, twist materials, magnetic impurities, Kondo effect
- Quantum simulation of an exotic quantum critical point in a two-site charge Kondo circuit
Winston Pouse, Lucas Peeters, Connie L. Hsueh, Ulf Gennser, Antonella Cavanna, Marc A. Kastner, Andrew K. Mitchell,* and David Goldhaber-Gordon*
Nature Physics 19, 492 (2023)
Keywords: Analogue quantum computation, quantum simulation, nanoelectronics, quantum dots, quantum criticality
- Z3 Parafermion in the double charge-Kondo model
Deepak Karki, Edouard Boulat, Winston Pouse, David Goldhaber-Gordon, Andrew K Mitchell, Christophe Mora
Phys. Rev. Lett. 130, 146201 (2023)
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Preprint, arXiv:2210.04937 (2022)
Keywords: Parafermions, quantum criticality, fractionalization, quantum dots
- Thermometry of strongly correlated fermionic quantum systems using impurity probes
George Mihailescu, Steve Campbell, Andrew K. Mitchell
Phys. Rev. A 107, 042614 (2023)
// Preprint, arXiv:2212.09618 (2022)
Keywords: Quantum metrology, quantum thermometry, impurities, quantum thermodynamics, quantum technologies
- Entropy measurement of a strongly coupled quantum dot
Timothy Child,Owen Sheekey, Silvia Luscher, Saeed Fallahi, Geoffrey C. Gardner, Michael
Manfra, Andrew Mitchell, Eran Sela, Yaakov Kleeorin, Yigal Meir, and Joshua Folk
Phys. Rev. Lett. 129, 227702 (2022)
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Preprint, arXiv:2110.14158
Keywords: Entropy, quantum dots, Kondo effect
- Linear response quantum transport through interacting multi-orbital nanostructures
Emma L. Minarelli, Jonas B. Rigo, Andrew K. Mitchell
Preprint, arXiv:2209.01208 (2022)
Keywords: quantum transport, thermoelectrics, quantum dots, molecular electronics
- Two-channel charge-Kondo physics in graphene quantum dots
Emma L. Minarelli, Jonas B. Rigo, and Andrew K. Mitchell
Nanomaterials 12, 1513 (2022)
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Preprint, arXiv:2204.02226 (2022)
Keywords: Graphene, Kondo, quantum dots
- Fractional Entropy of Multichannel Kondo Systems from Conductance-Charge Relations
Cheolhee Han, Z. Iftikhar, Yaakov Kleeorin, A. Anthore, F. Pierre, Yigal Meir, Andrew K. Mitchell*, and Eran Sela*
Phys. Rev. Lett. 128, 146803 (2022)
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Preprint, arXiv:2108.12878
Keywords: Entropy, quantum transport, nanoelectronics, quantum dots
- Automatic Differentiable Numerical Renormalization Group
Jonas B. Rigo and Andrew K. Mitchell
Phys. Rev. Research. 4, 013227 (2022)
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Preprint, arXiv:2108.09575
Keywords: Machine learning, differentiable programming, backpropagation, automatic differentiation, NRG, computational physics
- Monolithic Integration of Quantum Resonant Tunneling Gate on a 22nm FD-SOI CMOS Process
Imran Bashir, Dirk Leipold, Elena Blokhina, Mike Asker, David Redmond, Ali Esmailiyan, Panagiotis Giounanlis, Hans Haenlein, Xuton Wu, Andrii Sokolov, Dennis Andrade-Miceli, Andrew K. Mitchell, Robert Bogdan Staszewski
Preprint, arXiv:2112.04586 (2021)
Keywords: CMOS, quantum computing, quantum dots
- SO(5) critical point in a spin-flavor Kondo device: Bosonization and refermionization solution
Alon Liberman, Andrew K. Mitchell, Ian Affleck and Eran Sela
Phys. Rev. B 103, 195131 (2021) -- Editor's Suggestion
// Preprint arXiv:2103.10680
Keywords: Nanoelectronics, quantum dot devices, non-Fermi liquids, NRG, bosonization
- SO(5) non-Fermi liquid in a Coulomb box device
Andrew K. Mitchell, Alon Liberman, Eran Sela, Ian Affleck
Phys. Rev. Lett. 126, 147702 (2021) -- Editor's Suggestion
// Preprint arXiv:2009.12700
Keywords: Nanoelectronics, quantum dot devices, non-Fermi liquids, NRG, CFT, bosonization
- Electric and heat transport in a charge two-channel Kondo device
Gerwin A. R. van Dalum, Andrew K. Mitchell, Lars Fritz
Phys. Rev. B 102, 205137 (2020)
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arXiv:2007.07239
Keywords: Nanoelectronics, quantum dot devices, thermoelectrics, quantum transport, non-Fermi liquid
- The Mott transition as a topological phase transition
Sudeshna Sen, Patrick J. Wong, and Andrew K. Mitchell
Phys. Rev. B 102, 081110(R) (2020) -- Rapid Communication & Editor's Suggestion
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arXiv:2001.10526
Keywords: strongly correlated materials, topology, quantum matter, Mott transition, DMFT, SSH
- Wiedemann-Franz law in a non-Fermi liquid and Majorana central charge: Thermoelectric transport in a two-channel Kondo system
Gerwin A. R. van Dalum, Andrew K. Mitchell, and Lars Fritz
Phys. Rev. B 102, 041111(R) (2020) -- Rapid Communication
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arXiv:1912.04919
Keywords: Thermoelectric quantum transport, non-Fermi liquids, charge Kondo, Wiedemann-Franz law
- Machine learning effective models for quantum systems
Jonas B. Rigo and Andrew K. Mitchell
Phys. Rev. B 101, 241105(R) (2020) -- Rapid Communication
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arXiv:1910.11300
Keywords: Machine learning, quantum boltzmann machines, effective models, molecular electronics
- CMOS Position-Based Charge Qubits: Theoretical Analysis of Control and Entanglement
E. Blokhina, P. Giounanlis, Andrew K. Mitchell, D. Leipold, R. Staszewski
IEEE Access, 8, 4182-4197 (2019)
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arXiv:1912.11544
Keywords: Charge Qubits, CMOS technology, quantum dots
- Enhanced photocatalysis and biomolecular sensing with field-activated nanotube-nanoparticle templates
Sawsan Almohammed, Sebastian Tade Barwich, Andrew K. Mitchell, Brian J. Rodriguez, James H. Rice
Nature Communications, 10, 2496 (2019) -- Open Access
Keywords: quantum transport, nanostructure simulation, molecular electronics
- Multiband quasiparticle interference in the topological insulator Cu_x Bi_2 Te_3
E. van Heumen, G.A.R. van Dalum, J. Kaas, N. de Jong, J. Oen, Y.K. Huang, Andrew K. Mitchell, L. Fritz, M.S. Golden
arXiv:1110.4406
Keywords: Topological Quantum Matter, Quasiparticle Interference, Topological Insulators
- Tunable Quantum Criticality and Super-ballistic Transport in a 'Charge' Kondo Circuit
Z. Iftikhar, A. Anthore, Andrew K. Mitchell, F.D. Parmentier, U. Gennser, A. Ouerghi, A. Cavanna, C. Mora, P. Simon, F. Pierre
Science, 360, 1315 (2018)
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arXiv:1708.02542
Keywords: Quantum nanoelectronics, quantum criticality, fractionalization, quantum transport, multi-channel Kondo, quantum dot
- Kondo blockade due to quantum interference in single-molecule junctions
Andrew K. Mitchell, Kim G. L. Pedersen, Per Hedegaard, and Jens Paaske
Nature Communications, 8, 15210 (2017)
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arXiv:1612.04852
Keywords: molecular electronics, quantum interference, Kondo blockade
- Kondo impurities in the Kitaev spin liquid: Numerical renormalization group solution and gauge-flux-driven screening
Matthias Vojta, Andrew K. Mitchell, Fabian Zschocke
Phys. Rev. Lett. 117, 037202 (2016)
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arXiv:1604.03557
Keywords: spin liquid, Kitaev honeycomb compass model, Kondo impurity, quantum phase transitions
- Universality and scaling in a charge two-channel Kondo device
Andrew K. Mitchell, L. A. Landau, L. Fritz, E. Sela
Phys. Rev. Lett. 116, 157202 (2016) -- Editor's Suggestion
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arXiv:1602.02093
Keywords: two-channel Kondo, non-Fermi liquid, charge-Kondo, quantum criticality, quantum transport
- Interleaved numerical renormalization group as an efficient multiband impurity solver
Katharina Stadler, Andrew K. Mitchell, Jan von Delft and Andreas Weichselbaum
Phys. Rev. B 93, 235101 (2016)
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arXiv:1602.02182
Keywords: Numerical renormalization group, NRG, multi-band impurity solver, iNRG, interleaved-NRG, numerical methods, Kondo
- Signatures of Weyl semimetals in quasiparticle interference
Andrew K. Mitchell and Lars Fritz
Phys. Rev. B 93, 035137 (2016)
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arXiv:1512.06392
Keywords: Topological quantum matter, Weyl semimetals, Fermi arcs, quasiparticle interference (QPI)
- Screening mechanisms in magnetic nanostructures
Andrej Schwabe, Mirek Hänsel, Michael Potthoff and Andrew K. Mitchell
Phys. Rev. B 92, 155104 (2015)
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arXiv:1508.03157
Keywords: Magnetic nanostructures, quantum confined systems, RKKY, Kondo, NRG
- Validity of the local self-energy approximation: application to coupled quantum impurities
Andrew K. Mitchell and Ralf Bulla
Phys. Rev. B 92, 155101 (2015) -- Editor's Suggestion
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arXiv:1508.00394
Keywords: Dynamical mean field theory, Impurity-DMFT, iDMFT, Inhomogeneous-DMFT, Real-space DMFT, two-impurity Kondo, parallel quantum dots
- Kondo effect in three-dimensional Dirac and Weyl systems
Andrew K. Mitchell and Lars Fritz
Phys. Rev. B 92, 121109(R) (2015) -- Rapid Communication
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arXiv:1506.05491
Keywords: Dirac semimetal, Weyl semimetal, 3D topological insulator, impurities, Kondo effect
- Multiple magnetic impurities on surfaces: scattering and quasiparticle interference
Andrew K. Mitchell, Philip G Derry, and David E. Logan
Phys. Rev. B 91, 235127 (2015)
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arXiv:1504.05421
Keywords: Magnetic impurities on surfaces, scattering, STM, QPI, two-impurity Kondo, RKKY
- Quasiparticle interference from magnetic impurities
Philip G Derry, Andrew K. Mitchell, and David E. Logan
Phys. Rev. B 92, 035126 (2015)
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arXiv:1503.04712
Keywords: Quasiparticle interference, QPI, magnetic impurities, scattering theory, Kondo effect
- Generalized Wilson Chain for solving multichannel quantum impurity problems
Andrew K. Mitchell, Martin R. Galpin, Samuel Wilson-Fletcher, David E. Logan, and Ralf Bulla
Phys. Rev. B 89, 121105(R) (2014) -- Rapid Communication
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arXiv:1308.1903
Keywords: Multi-channel Kondo, Numerical Renormalization Group, interleaved NRG (iNRG)
- Conductance fingerprint of Majorana fermions in the topological Kondo effect
Martin R. Galpin, Andrew K. Mitchell, Jesada Temaismithi, David E. Logan, Benjamin Beri, and Nigel R. Cooper
Phys. Rev. B 89, 045143 (2014)
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arXiv:1312.5971
Keywords: Majorana fermions, nanowire/superconductor heterostructures, topological Kondo effect
- Quantum phase transitions and thermodynamics of the power-law Kondo model
Andrew K. Mitchell, Matthias Vojta, Ralf Bulla, and Lars Fritz
Phys. Rev. B 88, 195119 (2013) -- Editor's Suggestion
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arXiv:1309.0167
Keywords: Unconventional metals, quantum phase transitions, perturbative renormalization group, RG, NRG
- Kondo effect with diverging hybridization: realization in graphene with vacancies
Andrew K. Mitchell and Lars Fritz
Phys. Rev. B 88, 075104 (2013)
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arXiv:1212.2631v2
Keywords: Graphene, defects, vacancies
- Local moment formation and Kondo screening in impurity trimers
Andrew K. Mitchell, Thomas F. Jarrold and David E. Logan
J. Phys. Chem. B 117, 12777 (2013)
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arXiv:1302.6034
Keywords: magnetic frustration, triangular triple quantum dot, impurity clusters
- Kondo effect on the surface of 3D topological insulators: Signatures in scanning tunneling spectroscopy
Andrew K. Mitchell, Dirk Schuricht, Matthias Vojta and Lars Fritz
Phys. Rev. B 87, 075430 (2013)
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arXiv:1211.0034
Keywords: topological insulators, quasiparticle interference, QPI, Kondo effect
- Universal low-temperature crossover in two-channel Kondo models
Andrew K. Mitchell and Eran Sela
Phys. Rev. B 85, 235127 (2012) -- Editor's Suggestion
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arXiv:1203.4456v1
Keywords: Two channel Kondo, Two impurity Kondo, non-Fermi liquid, CFT, quantum dots
- Local Magnetization in the Boundary Ising Chain at Finite Temperature
Eran Sela and Andrew K. Mitchell
J. Stat. Mech. (2012) P04006
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arXiv:1202.3458v1
Keywords: quantum 1d transverse field Ising model, quantum criticality, RG flow, form factor method
- Two-channel Kondo physics in two-impurity Kondo models
Andrew K. Mitchell, Eran Sela, David E. Logan
Phys. Rev. Lett. 108, 086405 (2012)
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arXiv:1111.6503v1
Keywords: two-channel Kondo, two-impurity Kondo, non-fermi liquid, conductance
- Real-space renormalization group flow in quantum impurity systems: local moment formation and the Kondo screening cloud
Andrew K. Mitchell, Michael Becker, Ralf Bulla
Phys. Rev. B 84, 115120 (2011) -- Editor's Suggestion
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arXiv:1105.0560v2
Keywords: Kondo screening cloud, entanglement, real-space RG
- Two-channel Kondo physics in odd impurity chains
Andrew K. Mitchell, David E. Logan, H. R. Krishnamurthy
Phys. Rev. B 84, 035119 (2011)
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arXiv:1103.5038v3
Keywords: coupled quantum dots, two channel Kondo, non fermi liquids, Kondo effect
- Exact Crossover Green Function in the Two-Channel and Two-Impurity Kondo Models
Eran Sela, Andrew K. Mitchell, Lars Fritz
Phys. Rev. Lett. 106, 147202 (2011)
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arXiv:1101.3028v2
Keywords: Quantum dots, two channel Kondo, two impurity Kondo, non-fermi liquid, CFT, NRG
- Two-channel Kondo phases and frustration-induced transitions in triple quantum dots
Andrew K. Mitchell, David E. Logan
Phys. Rev. B 81, 075126 (2010)
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arXiv:0910.5143v2
Keywords: triangular triple quantum dot, two channel Kondo, magnetic frustration
- Quantum phase transition in quantum dot trimers
Andrew K. Mitchell, Thomas F. Jarrold, David E. Logan
Phys. Rev. B 79, 085124 (2009)
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arXiv:0902.4816v1
Keywords: triangular triple quantum dots, ferromagnetic Kondo, magnetic frustration
- Gate voltage effects in capacitively coupled quantum dots
Andrew K. Mitchell, Martin R. Galpin, David E. Logan
EPL (Europhysics Letters) 76 (1), 95 (2006)
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arXiv:cond-mat/0611219v1
Keywords: double quantum dot, SU(4) Kondo
Selected research seminars online
- "Generative model learning for molecular electronics",
APS March Meeting 2021 online (15/03/21)
video // slides
- "Topology of the Mott transition",
Department of Physics, Universidade Federal de Uberlandia, Brazil (11/03/21)
video // slides