Publications and preprints

  1. 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)   //   arXiv:1708.02542   //  
    Keywords: Quantum nanoelectronics, quantum criticality, fractionalization, quantum transport

  2. 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)   //   arXiv:1612.04852   //   download here
    Keywords: molecular electronics, quantum interference, Kondo blockade

  3. 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)   //   arXiv:1604.03557    //   Cite
    Keywords: spin liquid, Kitaev honeycomb compass model, Kondo impurity, quantum phase transitions

  4. 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   //   arXiv:1602.02093    //   Cite
    Keywords: two-channel Kondo, non-Fermi liquid, quantum criticality, universal conductance

  5. 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)   //   arXiv:1602.02182    //   Cite
    Keywords: Numerical renormalization group (NRG), multi-band impurity solver, numerical methods, Kondo

  6. Signatures of Weyl semimetals in quasiparticle interference
    Andrew K. Mitchell and Lars Fritz
    Phys. Rev. B 93, 035137 (2016)   //   arXiv:1512.06392    //   Cite
    Keywords: Topological quantum matter, Weyl semimetals, Fermi arcs, quasiparticle interference (QPI)

  7. Screening mechanisms in magnetic nanostructures
    Andrej Schwabe, Mirek Hänsel, Michael Potthoff and Andrew K. Mitchell
    Phys. Rev. B 92, 155104 (2015)   //   arXiv:1508.03157    //   Cite
    Keywords: Magnetic nanostructures, quantum confined systems, RKKY, Kondo, finite-size effects

  8. 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   //   arXiv:1508.00394    //   Cite
    Keywords: Impurity-DMFT, Inhomogeneous DMFT, Real-space DMFT, two-impurity Kondo, parallel quantum dots

  9. Kondo effect in three-dimensional Dirac and Weyl systems
    Andrew K. Mitchell and Lars Fritz
    Phys. Rev. B 92, 121109(R) (2015) -- Rapid Communication   //   arXiv:1506.05491    //   Cite
    Keywords: Dirac/Weyl semimetals, 3D topological systems, impurity scattering, Kondo effect

  10. 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)   //   arXiv:1504.05421   //   Cite
    Keywords: Magnetic impurities on surfaces, scattering, STS, QPI, two-impurity Kondo, RKKY

  11. Quasiparticle interference from magnetic impurities
    Philip G Derry, Andrew K. Mitchell, and David E. Logan
    Phys. Rev. B 92, 035126 (2015)   //   arXiv:1503.04712   //   Cite
    Keywords: Quasiparticle interference, QPI, magnetic impurities, scattering theory

  12. 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   //   arXiv:1308.1903   //   Cite
    Keywords: Multi-channel Kondo, Numerical Renormalization Group, interleaved NRG (iNRG)

  13. 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)   //   arXiv:1312.5971   //   Cite
    Keywords: Majorana fermions, nanowire/superconductor heterostructures, topological Kondo effect

  14. 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   //   arXiv:1309.0167   //   Cite
    Keywords: Unconventional metals, QPTs, perturbative RG

  15. Kondo effect with diverging hybridization: realization in graphene with vacancies
    Andrew K. Mitchell and Lars Fritz
    Phys. Rev. B 88, 075104 (2013)   //   arXiv:1212.2631v2   //   Cite
    Keywords: Graphene, defects

  16. 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)   //   arXiv:1302.6034   //   Cite
    Keywords: frustration, impurity clusters

  17. 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)   //   arXiv:1211.0034   //   Cite
    Keywords: topological insulators, quasiparticle interference (QPI), FTSTM

  18. Universal low-temperature crossover in two-channel Kondo models
    Andrew K. Mitchell and Eran Sela
    Phys. Rev. B 85, 235127 (2012) -- Editor's Suggestion   //   arXiv:1203.4456v1   //   Cite
    Keywords: Exact results, finite temperature dynamics, non-fermi liquid, two channel Kondo, CFT

  19. Local Magnetization in the Boundary Ising Chain at Finite Temperature
    Eran Sela and Andrew K. Mitchell
    J. Stat. Mech. (2012) P04006   //   arXiv:1202.3458v1   //   Cite
    Keywords: quantum 1d transverse field Ising model, quantum criticality, RG flow

  20. Two-channel Kondo physics in two-impurity Kondo models
    Andrew K. Mitchell, Eran Sela, David E. Logan
    Phys. Rev. Lett. 108, 086405 (2012)   //   arXiv:1111.6503v1   //   Cite
    Keywords: two-impurity Kondo, non-fermi liquid, conductance

  21. 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   //   arXiv:1105.0560v2   //   Cite
    Keywords: Kondo screening cloud, real-space RG, entanglement

  22. Two-channel Kondo physics in odd impurity chains
    Andrew K. Mitchell, David E. Logan, H. R. Krishnamurthy
    Phys. Rev. B 84, 035119 (2011)   //   arXiv:1103.5038v3   //   Cite
    Keywords: coupled quantum dots, two channel Kondo, non-fermi liquid

  23. 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)   //   arXiv:1101.3028v2   //   Cite
    Keywords: exact results, two channel Kondo, two impurity Kondo, non-fermi liquid, CFT

  24. Two-channel Kondo phases and frustration-induced transitions in triple quantum dots
    Andrew K. Mitchell, David E. Logan
    Phys. Rev. B 81, 075126 (2010)   //   arXiv:0910.5143v2   //   Cite
    Keywords: triangular triple quantum dots, two-channel Kondo, frustration

  25. Quantum phase transition in quantum dot trimers
    Andrew K. Mitchell, Thomas F. Jarrold, David E. Logan
    Phys. Rev. B 79, 085124 (2009)   //   arXiv:0902.4816v1   //   Cite
    Keywords: triangular triple quantum dots, ferromagnetic Kondo, frustration

  26. Gate voltage effects in capacitively coupled quantum dots
    Andrew K. Mitchell, Martin R. Galpin, David E. Logan
    Europhys. Lett. 76, 95 (2006)   //   arXiv:cond-mat/0611219v1   //   Cite
    Keywords: double quantum dot, SU(4) Kondo