Annalen der Physik

Cover image for Vol. 524 Issue 3‐4

Special Issue: Quantum Dynamics of Nano-Structured Systems

April 2012

Volume 524, Issue 3-4

Pages A46–A73, 71–251, L1–L4

Issue edited by: Gerd Schön, Cosima Schuster, Peter Schwab

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Cover Picture: Ann. Phys. 3–4/2012

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201290003

      Thumbnail image of graphical abstract

      A spectral weight conserving formalism for Fermionic thermal Green's functions is presented. The formalism requires a generalization of the Dyson equation and the Baym-Kadanoff-Luttinger-Ward functional for the free energy. The figure shows the spectral function A (details are given in the article, see Fig. 2). Picture: M. Granath et al., pp. 147–152 in this issue.

  2. Issue Information

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Issue Information: Ann. Phys. 3;ndash4/2012

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201252404

  3. Call for Paper

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Call for Paper: Ann. Phys. 3–4/2012

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201290004

  4. Contents

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Contents: Ann. Phys. 3–4/2012 (pages A46–A53)

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201200713

  5. Advisory Board

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      The AdP Advisory Board

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201200714

  6. Editorial

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Editorial: Special Issue: Quantum Dynamics of Nanostructured Systems (pages A55–A56)

      G. Schön, C. Schuster and P. Schwab

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201200715

  7. Laudation

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Ulrich Eckern's 60th birthday (pages A57–A58)

      G. Schön

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201200716

  8. Physics Forum

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. Then & Now

      You have free access to this content
    2. Expert Opinion

      You have free access to this content
    3. You have free access to this content
    4. Comment

      Comment on DOI: 10.1002/andp.201000099, by C. Wang (page 71)

      Adrian Sfarti

      Article first published online: 21 MAR 2012 | DOI: 10.1002/andp.201100064

    5. Comments

      You have free access to this content
  9. Review Article

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Quantum vortex dynamics in Josephson arrays and optical lattices (pages 113–117)

      R. Fazio and G. Schön

      Article first published online: 23 DEC 2011 | DOI: 10.1002/andp.201100279

      Thumbnail image of graphical abstract

      In Josephson junction arrays, vortices form stable topological excitations. A key step towards the understanding of their properties was the observation made by Eckern and Schmid that in low-capacitance junction arrays a vortex behaves as a massive particle moving in a periodic potential and is subject to dissipation. The present contribution provides a review of these properties.

  10. Review Papers

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      A quantum spin-liquid in correlated relativistic electrons (pages 118–122)

      Z.Y. Meng, T.C. Lang, S. Wessel, F.F. Assaad and A. Muramatsu

      Article first published online: 6 FEB 2012 | DOI: 10.1002/andp.201100275

      Thumbnail image of graphical abstract

      In recent years, an increasing number of systems displaying exotic quantum states like unconventional superconductivity, quantum spin-liquids, or topological states were experimentally found. This work summarizes findings in quantum Monte Carlo simulations of correlated electrons on a honeycomb lattice, the structure of graphene, that revealed an unexpected spin-liquid emerging between a state described by massless Dirac fermions and an antiferromagnetically ordered Mott insulator.

    2. You have free access to this content
      Impurity diffusion, point defect engineering, and surface/interface passivation in germanium (pages 123–132)

      A. Chroneos, U. Schwingenschlögl and A. Dimoulas

      Article first published online: 26 JAN 2012 | DOI: 10.1002/andp.201100246

      Thumbnail image of graphical abstract

      Germanium is emerging as a mainstream material that could have important applications in the microelectronics industry. The principle aim of this study is to review investigations of the diffusion of technologically important p- and n-type dopants as well as surface and interface passivation issues in germanium.

  11. Review Article

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Bethe Ansatz approach to the pairing fluctuations in the mesoscopic regime (pages 133–145)

      L. Amico and A. Osterloh

      Article first published online: 8 MAR 2012 | DOI: 10.1002/andp.201100326

      Thumbnail image of graphical abstract

      The exact treatment of the pairing correlation functions in the canonical ensemble is reviewed. The key for the calculations has been provided by relating the discrete BCS model to known integrable theories corresponding to the so called Gaudin magnets with suitable boundary terms.

  12. Editor's Choice

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. You have free access to this content
      Discretized thermal Green's functions (pages 147–152)

      M. Granath, A. Sabashvili, H.U.R. Strand and S. Östlund

      Article first published online: 24 FEB 2012 | DOI: 10.1002/andp.201100262

      Thumbnail image of graphical abstract

      A spectral weight conserving formalism is presented for Fermionic thermal Green's functions that are discretized in imaginary time τ and thus periodic in imaginary (“Matsubara”) frequency i ωn. The formalism requires a generalization of the Dyson equation and the Baym-Kadanoff-Luttinger-Ward functional for the free energy. A conformal transformation is used to analytically continue the periodized Matsubara Green's function to real frequencies. This allows numerical Green's function calculations of high precision.

  13. Original Papers

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. Spin-orbit interaction in a two-dimensional electron gas: A SU(2) formulation

      R. Raimondi, P. Schwab, C. Gorini and G. Vignale

      Article first published online: 23 DEC 2011 | DOI: 10.1002/andp.201100253

      Thumbnail image of graphical abstract

      Spin-orbit interaction is usefully classified as extrinsic or intrinsic, depending on its origin: the potential due to random impurities (extrinsic), or the crystalline potential associated with the band or device structure (intrinsic). In this paper it is shown how, by using a SU(2) formulation, the two sources may be described in an elegant and unified way.

    2. Counting quantum fluctuations of particle density (pages 163–174)

      J. Rammer and A. Shelankov

      Article first published online: 23 DEC 2011 | DOI: 10.1002/andp.201100277

      Thumbnail image of graphical abstract

      Methods of charge projectors using special gauge transformations for tagging particles are presented. Such engineering of a many-body wave function allows extracting information regarding properties of a physical system beyond average values.

    3. Exact results with the Kotliar-Ruckenstein slave-boson representation (pages 175–181)

      R. Frésard and T. Kopp

      Article first published online: 26 JAN 2012 | DOI: 10.1002/andp.201100197

      Thumbnail image of graphical abstract

      Radial slave boson representations have the particular advantage that the expectation values of their respective fields are finite even without the formal introduction of spurious Bose condensates for each of the bosonic fields. A setup for the functional integral of radial bosonic fields in the Kotliar-Ruckenstein representation has not been accomplished to date. In this work a path integral procedure is implemented with suitable renormalization factors for a strongly correlated two-site model.

    4. Second-order response of a uniform three-dimensional electron gas to a longitudinal electric field (pages 182–187)

      S.A. Mikhailov

      Article first published online: 17 JAN 2012 | DOI: 10.1002/andp.201100260

      Thumbnail image of graphical abstract

      The linear electromagnetic response of a uniform three-dimensional electron gas to a longitudinal electric field is determined by the known Lindhard dielectric function ϵqω. In this paper, an exact analytical expressions for the second-order nonlinear electromagnetic response of the electron gas is derived.

    5. Transport and dephasing in a quantum dot: Multiply connected graph model (pages 188–198)

      M. Treiber, O.M. Yevtushenko and J. von Delft

      Article first published online: 2 FEB 2012 | DOI: 10.1002/andp.201100258

      Thumbnail image of graphical abstract

      Using the theory of diffusion in graphs, a model is proposed to study mesoscopic transport through a diffusive quantum dot. The graph consists of three quasi-1D regions: a central region describing the dot, and two identical left and right- wires connected to leads, which mimic contacts of a real system. The authors find the exact solution of the diffusion equation for this graph and evaluate the conductance including quantum corrections.

    6. The dark side of benzene: Interference vs. interaction (pages 199–204)

      D. Bohr and P. Schmitteckert

      Article first published online: 27 FEB 2012 | DOI: 10.1002/andp.201100266

      Thumbnail image of graphical abstract

      A the study is presented of the linear conductance vs. applied gate voltage for an interacting six site ring structure, which is threaded by a flux of π and coupled to a left and a right lead. This ring structure is designed to have a vanishing conductance for all gate voltages and temperatures provided interactions are ignored. Therefore this system is an ideal testbed to study the interplay of interaction and interference.

    7. Dynamical properties of partially coherent Bose-Einstein condensates in double wells (pages 205–211)

      L.-H. Lu and Y.-Q. Li

      Article first published online: 27 FEB 2012 | DOI: 10.1002/andp.201100252

      Thumbnail image of graphical abstract

      Some dynamical features of partially coherent Bose-Einstein condensate systems confined in double-well potentials are investigated in the mean field approximation. For a one-component system, the phenomenon of self-trapping is studied and it is shown that the partially coherent system, like completely coherent one, can also exhibit self-trapping phenomena. For a two-component system, the time evolution of the degree of coherence for a time-dependent tunneling strength is investigated.

    8. Spin excitations in Co2NiGa under pressure from a theoretical approach (pages 212–226)

      E. Olivos, A.L. Miranda, N. Singh, R. Arroyave and A.H. Romero

      Article first published online: 6 FEB 2012 | DOI: 10.1002/andp.201100269

      Thumbnail image of graphical abstract

      The Heisenberg exchange parameters for the Heusler compound Co2NiGa with L21 structure were calculated using the Korringa-Kohn-Rostoker method and by employing the magnetic-force theorem to obtain the total energy changes associated with the local rotation of magnetization direction. The crystal structure was subjected to pressure and the corresponding dependence of the magnetic exchange couplings were determined.

    9. Phonoemissive spin tunneling in molecular nanomagnets (pages 227–233)

      A. Garg

      Article first published online: 6 FEB 2012 | DOI: 10.1002/andp.201100271

      Thumbnail image of graphical abstract

      A new mechanism is proposed for the magnetization reversal of molecular nanomagnets such as Fe8. In this process the spin tunnels from the lowest state near one easy direction to the first excited state near the opposite easy direction, and subsequently decays to the second easy direction with the emission of a phonon, or it first emits a phonon and then tunnels to the final state.

    10. The inhomogeneous extended Bose-Hubbard model: A mean-field theory (pages 234–244)

      J.M. Kurdestany, R.V. Pai and R. Pandit

      Article first published online: 2 FEB 2012 | DOI: 10.1002/andp.201100274

      Thumbnail image of graphical abstract

      An inhomogeneous mean-field theory is developed for the extended Bose-Hubbard model with a quadratic, confining potential. In the absence of this potential, the mean-field theory yields the phase diagram of the homogeneous extended Bose-Hubbard model. This phase diagram shows a superfluid phase and lobes of Mott-insulator, density-wave, and supersolid phases in the plane of the chemical potential μ and on-site repulsion U.

    11. Rotational quantum impurities in a metal: Stability of the 2-channel Kondo fixed point in a magnetic field (pages 245–251)

      K. Ballmann and J. Kroha

      Article first published online: 2 FEB 2012 | DOI: 10.1002/andp.201100328

      Thumbnail image of graphical abstract

      A three-level system with partially broken SU(3) symmetry immersed in a metal, comprised of a unique noninteracting ground state and two-fold degenerate excited states, exhibits a stable two-channel Kondo (2CK) fixed point within a wide range of parameters. The robustness of the 2CK fixed point is analyzed with respect to a level splitting of the excited states.

  14. Rapid Research Letter

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Call for Paper
    5. Contents
    6. Advisory Board
    7. Editorial
    8. Laudation
    9. Physics Forum
    10. Review Article
    11. Review Papers
    12. Review Article
    13. Editor's Choice
    14. Original Papers
    15. Rapid Research Letter
    1. Charge susceptibility in Kondo systems at half filling: DMRG study (pages L1–L4)

      P. Schmitteckert and F. Evers

      Article first published online: 2 FEB 2012 | DOI: 10.1002/andp.201100298

      Thumbnail image of graphical abstract

      In this brief communication, the charge susceptibility, χc,imp, is calculated for the single impurity Anderson model in the Kondo regime with the density matrix renormalization group theory. The work is of methodological relevance, e. g., for studies of the Kondo-effect in molecular systems, in the sense that it prepares treatments of (spinful) few-orbital models in the Kondo regime.

SEARCH

SEARCH BY CITATION