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Correlated electron states in high mobility two-dimensional electron systems (2DESs), including charge density waves and microemulsion phases intermediate between a Fermi liquid and Wigner crystal, are predicted to exhibit complex local…

Mesoscale and Nanoscale Physics · Physics 2014-11-11 Matthew Pelliccione , John Bartel , Adam Sciambi , Loren Pfeiffer , Ken West , David Goldhaber-Gordon

Numerical approaches to Anderson localization face the problem of having to treat large localization lengths while being restricted to finite system sizes. We show that by finite-size scaling of the probability distribution of the local…

Strongly Correlated Electrons · Physics 2015-05-18 Gerald Schubert , Jens Schleede , Krzysztof Byczuk , Holger Fehske , Dieter Vollhardt

The local density of states (LDOS) of the adsorbate induced two-dimensional electron system (2DES) on n-InAs(110) is studied by low-temperature scanning tunneling spectroscopy. The LDOS exhibits irregular structures with fluctuation lengths…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 M. Morgenstern , J. Klijn , Chr. Meyer , M. Getzlaff , R. Adelung , R. A. Roemer , K. Rossnagel , L. Kipp , M. Skibowski , R. Wiesendanger

Using an effective Hamiltonian with d-wave superconductivity (dSC) and competing antiferromagnetic (AF) interactions, we show that weak and one-dimensionally modulated dSC, spin density wave (SDW) and charge density wave (CDW) could coexist…

Superconductivity · Physics 2009-11-10 Hong-Yi Chen , C. S. Ting

Following Hollins et al. [J. Phys.: Condens. Matter 29, 04LT01 (2017)], we invert the electronic ground state densities for various semiconducting and insulating solids calculated using several density functional approximations within the…

Chemical Physics · Physics 2025-11-05 Visagan Ravindran , Nikitas I. Gidopoulos , Stewart J. Clark

We report an efficient quantum algorithm for estimating the local density of states (LDOS) on a quantum computer. The LDOS describes the redistribution of energy levels of a quantum system under the influence of a perturbation. Sometimes…

Quantum Physics · Physics 2009-11-10 Joseph Emerson , Seth Lloyd , David Poulin , David Cory

We experimentally study spatial fluctuations of the local density of states (LDOS) inside three-dimensional random photonic media. The LDOS is probed at many positions inside the random photonic media by measuring emission rates of a large…

Optics · Physics 2010-07-06 M. D. Birowosuto , S. E. Skipetrov , W. L. Vos , A. P. Mosk

We present experimental evidence for the different mechanisms driving the fluctuations of the local density of states (LDOS) in disordered photonic systems. We establish a clear link between the microscopic structure of the material and the…

Disordered Systems and Neural Networks · Physics 2017-08-02 F. Riboli , F. Uccheddu , G. Monaco , N. Caselli , F. Intonti , M. Gurioli , S. E. Skipetrov

The atomic and electronic structures of ErAs nanoparticles embedded within a GaAs matrix are examined via cross-sectional scanning tunneling microscopy and spectroscopy (XSTM/XSTS). The local density of states (LDOS) exhibits a finite…

Mesoscale and Nanoscale Physics · Physics 2012-04-13 Jason K. Kawasaki , Rainer Timm , Kris T. Delaney , Edvin Lundgren , Anders Mikkelsen , Chris J. Palmstrøm

We carry out a theoretical analysis of the momentum dependence of the Fourier-transformed local density of states (LDOS) in the superconducting cuprates within a model considering the interference of quasiparticles scattering on quenched…

Superconductivity · Physics 2008-06-16 L. Dell'Anna , J. Lorenzana , M. Capone , C. Castellani , M. Grilli

It is shown that the local density of states (LDOS), measured in an Scanning Tunneling Microscopy (STM) experiment, at a single tip position contains oscillations as a function of Energy, due to quasiparticle interference, which is related…

Superconductivity · Physics 2013-05-29 Sumiran Pujari , C. L. Henley

Recent experiments have shown that the superconducting energy gap in some cuprates is spatially inhomogeneous. Motivated by these experiments, and using exact diagonalization of a model d-wave Hamiltonian, combined with Monte Carlo…

Superconductivity · Physics 2009-11-11 Daniel Valdez-Balderas , David Stroud

We use Scanning Gate Microscopy to demonstrate the presence of localized states arising from potential inhomogeneities in a 50nm-wide, gate-defined conducting channel in encapsulated bilayer graphene. When imaging the channel conductance…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Carolin Gold , Annika Kurzmann , Kenji Watanabe , Takashi Taniguchi , Klaus Ensslin , Thomas Ihn

We analytically calculate the contribution to the local density of states due to thermal sources in a disk-like patch within the framework of fluctuational electrodynamics. We further introduce a wavevector cutoff method to approximate this…

Mesoscale and Nanoscale Physics · Physics 2023-07-27 Svend-Age Biehs , Achim Kittel , Zhenghua An

Mesoscopic fluctuations and correlations of the local density of states are studied near metal-insulator transitions in disordered interacting electronic systems. We show that the multifractal behavior of the local density of states…

Mesoscale and Nanoscale Physics · Physics 2015-07-30 I. S. Burmistrov , I. V. Gornyi , A. D. Mirlin

The mesoscopic fluctuations of the Density of electronic States (DoS) and of the conductivity of two- and three- dimensional lattices with randomly distributed substitutional impurities are studied. Correlations of the levels lying above…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 E. P. Nakhmedov , V. N. Prigodin , E. Sasioglu

The local density of states of a degenerate semiconductor is investigated at low magnetic fields. In order to realize this experiment, we designed a strongly asymmetric double-barrier heterostructure with heavily doped contacts and study…

Condensed Matter · Physics 2009-10-28 T. Schmidt , R. J. Haug , V. I. Fal'ko , K. v. Klitzing , A. Foerster , H. Lueth

On the basis of the quasiclassical theory of superconductivity, we obtain a formula for the local density of states (LDOS) around a vortex core of superconductors with anisotropic pair-potential and Fermi surface in arbitrary directions of…

Superconductivity · Physics 2007-05-23 Yuki Nagai , Yosuke Ueno , Yusuke Kato , Nobuhiko Hayashi

We reformulate the Tomonaga--Luttinger liquid theory for quasi-one-dimensional Fermion systems with many subbands across the Fermi energy. Our theory enables us to obtain a rigorous expression of the local density of states (LDOS) for…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Hideo Yoshioka , Hiroyuki Shima

Majorana bound states are expected to appear in one-dimensional semiconductor-superconductor hybrid systems, provided they are homogenous enough to host a global topological phase. In order to experimentally investigate the uniformity of…

Mesoscale and Nanoscale Physics · Physics 2024-06-11 Qingzhen Wang , Yining Zhang , Saurabh Karwal , Srijit Goswami