Capri spring school, April 2009 With collaborators: P. Mehta - Princeton C. Bolech - Rice A. Jerez - NJIT, Rutgers G. Palacios - Rutgers N. Andrei - Rutgers.

Slides:

Advertisements

Similar presentations

Equations-of-motion technique applied to quantum dot models

Advertisements

Nanostructures on ultra-clean two-dimensional electron gases T. Ihn, C. Rössler, S. Baer, K. Ensslin C. Reichl and W. Wegscheider.

From weak to strong correlation: A new renormalization group approach to strongly correlated Fermi liquids Alex Hewson, Khan Edwards, Daniel Crow, Imperial.

Correlations in quantum dots: How far can analytics go? ♥ Slava Kashcheyevs Amnon Aharony Ora Entin-Wohlman Phys.Rev.B 73, (2006) PhD seminar on.

Probing Superconductors using Point Contact Andreev Reflection Pratap Raychaudhuri Tata Institute of Fundamental Research Mumbai Collaborators: Gap anisotropy.

Dynamical response of nanoconductors: the example of the quantum RC circuit Christophe Mora Collaboration with Audrey Cottet, Takis Kontos, Michele Filippone,

Igor Aleiner (Columbia) Theory of Quantum Dots as Zero-dimensional Metallic Systems Physics of the Microworld Conference, Oct. 16 (2004) Collaborators:

Markus Büttiker University of Geneva The Capri Spring School on Transport in Nanostructures April 3-7, 2006 Scattering Theory of Conductance and Shot Noise.

Stability analysis of metallic nanowires: Interplay of Rayleigh and Peierls Instabilities Daniel Urban and Hermann Grabertcond-mat/ Jellium model:

Superconducting transport  Superconducting model Hamiltonians:  Nambu formalism  Current through a N/S junction  Supercurrent in an atomic contact.

Conductance of a spin-1 QD: two-stage Kondo effect Anna Posazhennikova Institut für Theoretische Festkörperphysik, Uni Karlsruhe, Germany Les Houches,

Carrier Transport Phenomena

Electronic Transport and Quantum Phase Transitions of Quantum Dots in Kondo Regime Chung-Hou Chung 1. Institut für Theorie der Kondensierten Materie Universität.

Electronic Transport and Quantum Phase Transitions of Quantum Dots in Kondo Regime Chung-Hou Chung 1. Institut für Theorie der Kondensierten Materie Universität.

Solid state realisation of Werner quantum states via Kondo spins Ross McKenzie Sam Young Cho Reference: S.Y. Cho and R.H.M, Phys. Rev. A 73, (2006)

Coulomb Blockade and Non-Fermi-Liquid Behavior in a Double-Dot Device Avraham Schiller Racah Institute of Physics Eran Lebanon (Rutgers University) Special.

Renormalised Perturbation Theory ● Motivation ● Illustration with the Anderson impurity model ● Ways of calculating the renormalised parameters ● Range.

Introduction to the Kondo Effect in Mesoscopic Systems.

Kondo Effects in Carbon Nanotubes

Non equilibrium noise as a probe of the Kondo effect in mesoscopic wires Eran Lebanon Rutgers University with Piers Coleman arXiv: cond-mat/ DOE.

Exotic Kondo Effects and T K Enhancement in Mesoscopic Systems.

Conserving Schwinger boson approach for the fully- screened infinite U Anderson Model Eran Lebanon Rutgers University with Piers Coleman, Jerome Rech,

Field theoretical methods in transport theory  F. Flores  A. Levy Yeyati  J.C. Cuevas.

Quantum Quench of a Kondo-Exciton SFB/TR-12 Hakan Tureci, Martin Claassen, Atac Imamoglu (ETH), Markus Hanl, Andreas Weichselbaum, Theresa Hecht, Jan von.

Avraham Schiller / Seattle 09 equilibrium: Real-time dynamics Avraham Schiller Quantum impurity systems out of Racah Institute of Physics, The Hebrew University.

A. Ramšak* J. Mravlje T. Rejec* R. Žitko J. Bonča* The Kondo effect in multiple quantum dot systems and deformable molecules

Kondo, Fano and Dicke effects in side quantum dots Pedro Orellana UCN-Antofagasta.

From Kondo and Spin Glasses to Heavy Fermions, Hidden Order and Quantum Phase Transitions A Series of Ten Lectures at XVI Training Course on Strongly Correlated.

Correlations in quantum dots: How far can analytics go?

The Two Channel Kondo Effect (The breakdown of the Fermi liquid paradigm in quantum dots: theory and experiment) Department of Condensed Matter Physics.

Dephasing by magnetic impurities Tobias Micklitz, A. Altland and A

Modeling thermoelectric properties of TI materials: a Landauer approach Jesse Maassen and Mark Lundstrom Network for Computational Nanotechnology, Electrical.

Chung-Hou Chung Collaborators:

T. K. T. Nguyen, M. N. Kiselev, and V. E. Kravtsov The Abdus Salam ICTP, Trieste, Italy Effect of magnetic field on thermoelectric coefficients of a single.

Electronic States and Transport in Quantum dot Ryosuke Yoshii YITP Hayakawa Laboratory.

Application of the Cluster Embedding Method to Transport Through Anderson Impurities George Martins Carlos Busser Physics Department Oakland University.

Quantum pumping and rectification effects in interacting quantum dots Francesco Romeo In collaboration with : Dr Roberta Citro Prof. Maria Marinaro University.

07/11/11SCCS 2008 Sergey Kravchenko in collaboration with: AMAZING PROPERTIES OF STRONGLY CORRELATED ELECTRONS IN TWO DIMENSIONS A. Punnoose M. P. Sarachik.

Quantum Noise of a Carbon Nanotube Quantum Dot in the Kondo Regime Exp : J. Basset, A.Yu. Kasumov, H. Bouchiat and R. Deblock Laboratoire de Physique des.

The quantum kicked rotator First approach to “Quantum Chaos”: take a system that is classically chaotic and quantize it.

Solid-State Electronics Chap. 5 Instructor: Pei-Wen Li Dept. of E. E. NCU 1 Chap 5. Carrier Motion  Carrier Drift  Carrier Diffusion  Graded Impurity.

From Local Moment to Mixed-Valence Regime in Ce 1−x Yb x CoIn 5 alloys Carmen Almasan, Kent State University, DMR Ce 1−x Yb x CoIn 5 alloys have.

Sid Nb device fabrication Superconducting Nb thin film evaporation Evaporate pure Nb to GaAs wafer and test its superconductivity (T c ~9.25k ) Tc~2.5K.

Theoretical study of the phase evolution in a quantum dot in the presence of Kondo correlations Mireille LAVAGNA Work done in collaboration with A. JEREZ.

Www-f1.ijs.si/~bonca/work.html Cambridge, 2006 J. Bonča Physics Department, FMF, University of Ljubljana, J. Stefan Institute, Ljubljana, SLOVENIA Conductance.

A. Ramšak 1,2 and T. Rejec 2 1 Faculty of Mathematics and Physics, University of Ljubljana 2 J. Stefan Institute, Ljubljana, Slovenia Conductance of nano-systems.

Progress Report: Tools for Quantum Information Processing in Microelectronics ARO MURI (Rochester-Stanford-Harvard-Rutgers) Third Year Review, Harvard.

Quantum Criticality in Magnetic Single-Electron Transistors T p Physics of non-Fermi-liquid Metals Qimiao Si, Rice University, DMR Quantum criticality.

Www-f1.ijs.si/~bonca/work.html New 3 SC-6, Sydney, 2007 J. Bonča Physics Department, FMF, University of Ljubljana, J. Stefan Institute, Ljubljana, SLOVENIA.

Coupling quantum dots to leads:Universality and QPT

A. Ramšak* J. Mravlje R. Žitko J. Bonča* T. Rejec* The Kondo effect in multiple quantum dot systems Department of Physics.

Charge pumping in mesoscopic systems coupled to a superconducting lead

THE KONDO EFFECT IN CARBON NANOTUBES

Slava Kashcheyevs Avraham Schiller Amnon Aharony Ora Entin-Wohlman Interference and correlations in two-level dots Phys. Rev. B 75, (2007) Also:

Kondo effect in a quantum dot without spin Hyun-Woo Lee (Postech) & Sejoong Kim (Postech  MIT) References: H.-W. Lee & S. Kim, cond-mat/ P. Silvestrov.

Preliminary doping dependence studies indicate that the ISHE signal does pass through a resonance as a function of doping. The curves below are plotted.

Transport Measurement of Andreev Bound States in a Kondo-Correlated Quantum Dot Experiment: B.-K. Kim, Y.-H. Ahn, J.-J. Kim, M.-H. Bae, N. Kim Theory:

Memory effects in electron glasses Markus Müller Eran Lebanon Lev Ioffe Rutgers University, Piscataway NJ 10 August, 2005, Leiden.

Nonequilibrium Green’s Function Method for Thermal Transport Jian-Sheng Wang.

NTNU, April 2013 with collaborators: Salman A. Silotri (NCTU), Chung-Hou Chung (NCTU, NCTS) Sung Po Chao Helical edge states transport through a quantum.

Collin Broholm * Johns Hopkins University and NIST Center for Neutron Research Y. Chen LANL M. Kenzelmann JHU & NIST C. P. LandeeClarke University K. Lefmann.

Kondo Effect Ljubljana, Author: Lara Ulčakar

Vivek Sinha (09MS 066) Amit Kumar (09 MS 086)

ultracold atomic gases

Quantum entanglement, Kondo effect, and electronic transport in

Robert Konik, Brookhaven National Laboratory Hubert Saleur,

Conductance of nanosystems with interaction

ATOMIC STRUCTURE Central cell of the Al-SiO2-nSi atomic structure. This cell is connected to Al atomic planes extending to to the left, and n-Si atomic.

Conductance through coupled quantum dots

Kondo effect Him Hoang

Presentation transcript:

Capri spring school, April 2009 With collaborators: P. Mehta - Princeton C. Bolech - Rice A. Jerez - NJIT, Rutgers G. Palacios - Rutgers N. Andrei - Rutgers Special Thanks: C. Yee -Rutgers Sung Po Chao Nonequilibrium transport in the Anderson model of a biased Quantum Dot

Goldhaber-Gordon et al, Cronenwet et al. van der Wiel et al. Conductance vs gate voltage - Kondo enhancement in odd valleys Differential conductance vs bias - Nonequilibrium dynamics T varies in the range mK Quantum Dot in and out of Equilibrium Equilibrium Nonequilibrium (Lee & Ng,Glazman & Raikh)

Hamiltonian to describe the system: Single Impurity Anderson model Scattering Bethe Ansatz approach: (P.Mehta, N.Andrei 06) 1. Diagonalize the Hamiltonian out of equilibrium: 2. Compute expectation value:

Current and Dot Occupation  Current and dot-occupation operators:  Expectation value expressed in terms of Bethe Ansatz density : with and given by

Conductance in equilibrium: Numerical results Conductance vs. gate voltage - Direct calculation from current. - Verifies Friedel SR - TBA vs SBA Von Delft, notes

Conductance out of equilibrium: Numerical results..2 cases Case 1: Case 2: From Kondo to mixed valence (0 refers to equilibrium Fermi surface of the leads)

Conductance out of equilibrium: Numerical results case 1 Obtain Tk from quadratic fit for Kondo peak nearby V=0. Observed universality for small voltage region. Conductance vs. bias voltage V : Conductance nearby zero voltage: Conductance for voltage larger than Kondo temp:

Conductance out of equilibrium: Numerical results case 2 Conductance vs. bias voltage : Contour plot of conductance vs source-drain voltage and gate voltage: The Kondo effect forms as is decreased, destroyed as the bias voltage is increased (M Grobis et al,PRL 100,246601)

Summary and Outlook Computed Nonequilibrium transport properties of Anderson impurity model. Outlook: Finite temperature/finite magnetic field. Muti-terminal quantum dot/quantum wire