Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.9k papers
- University of MichiganUS2k papers
- Institute for High Energy PhysicsES1.9k papers
- University College LondonGB1.9k papers
- University of ManchesterGB1.9k papers
- University of BonnDE1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- Brookhaven National LaboratoryUS1.8k papers
- University of ArizonaUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- Max Planck Institute for PhysicsDE1.8k papers
- Aix-Marseille UniversitéFR1.8k papers
16 papers · 2 filters
Entanglement spectrum of the two dimensional Bose-Hubbard model
Vincenzo Alba, Masudul Haque, Andreas M. Laeuchli
We study the entanglement spectrum (ES) of the Bose-Hubbard model on the two dimensional square lattice at unit filling, both in the Mott insulating and in the superfluid phase. In…
Proposed Rabi-Kondo Correlated State in a Laser-Driven Semiconductor Quantum Dot
B. Sbierski, M. Hanl, A. Weichselbaum +5
Spin exchange between a single-electron charged quantum dot and itinerant electrons leads to an emergence of Kondo correlations. When the quantum dot is driven resonantly by weak l…
Relaxation dynamics of the Holstein polaron
Denis Golež, Janez Bonča, Lev Vidmar +1
Keeping the full quantum nature of the problem we compute the relaxation time of the Holstein polaron after it was driven far from the equilibrium by a strong oscillatory pulse. Ju…
Tensor networks and the numerical renormalization group
Andreas Weichselbaum
The full-density-matrix numerical renormalization group (NRG) has evolved as a systematic and transparent setting for the cal- culation of thermodynamical quantities at arbitrary t…
Duality of Weak and Strong Scatterer in Luttinger liquid Coupled to Massless Bosons
Igor V. Yurkevich, Alexey Galda, Oleg M. Yevtushenko +1
We study electronic transport in a Luttinger liquid (LL) with an embedded impurity, which is either a weak scatterer (WS) or a weak link (WL), when interacting electrons are couple…
Efficient simulation of infinite tree tensor network states on the Bethe lattice
Wei Li, Jan von Delft, Tao Xiang
We show that the simple update approach proposed by Jiang et. al. [H.C. Jiang, Z.Y. Weng, and T. Xiang, Phys. Rev. Lett. 101, 090603 (2008)] is an efficient and accurate method for…
SU(3) Anderson impurity model: A numerical renormalization group approach exploiting non-Abelian symmetries
Catalin Pascu Moca, Arne Alex, Jan von Delft +1
We show how the density-matrix numerical renormalization group (DM-NRG) method can be used in combination with non-Abelian symmetries such as SU(N), where the decomposition of the…
Electronic structure and magnetic properties of CrSb and FeSb investigated via ab-initio calculations
G. Kuhn, S. Mankovsky, H. Ebert +2
The electronic structure and magnetic properties of CrSb have been investigated by ab-initio calculations with an emphasis on the role of the magnetic structure for the ground…
Quantum magnetic properties of the SU(2N) Hubbard model in the square lattice: a quantum Monte Carlo study
Zi Cai, Hsiang-Hsuan Hung, Lei Wang +1
We employ the determinant projector quantum Monte-Carlo method to investigate the ground state magnetic properties in the Mott insulating states of the half-filled SU(4) and SU(6)…
Nonequilibrium propagation and decay of a bound pair in driven t-J models
J. Bonca, M. Mierzejewski, L. Vidmar
We perform an accurate time-dependent numerical study of out-of-equilibrium response of a bound state within t-J systems on a two-leg ladder and a square lattice. We show that the…
Full density matrix numerical renormalization group calculation of impurity susceptibility and specific heat of the Anderson impurity model
L. Merker, A. Weichselbaum, T. A. Costi
Recent developments in the numerical renormalization group (NRG) allow the construction of the full density matrix (FDM) of quantum impurity models (see A. Weichselbaum and J. von…
Hybrid NRG-DMRG approach to real-time dynamics of quantum impurity systems
Fabian Guettge, Frithjof B. Anders, Ulrich Schollwoeck +2
A hybrid approach to nonequilibrium dynamics of quantum impurity systems is presented. The numerical renormalization group serves as a means to generate a suitable low-energy Hamil…
Parametric instability in periodically driven Luttinger liquids
Marin Bukov, Markus Heyl
We analyze the properties of a Luttinger liquid under the influence of a periodic driving of the interaction strength. Irrespective of the details the driven system develops an ins…
Long-time behavior of the momentum distribution during the sudden expansion of a spin-imbalanced Fermi gas in one dimension
C. J. Bolech, F. Heidrich-Meisner, S. Langer +3
We study the sudden expansion of spin-imbalanced ultracold lattice fermions with attractive interactions in one dimension after turning off the longitudinal confining potential. We…
Lanczos algorithm with Matrix Product States for dynamical correlation functions
P. E. Dargel, A. Wöllert, A. Honecker +3
The density-matrix renormalization group (DMRG) algorithm can be adapted to the calculation of dynamical correlation functions in various ways which all represent compromises betwe…
Non-abelian symmetries in tensor networks: a quantum symmetry space approach
Andreas Weichselbaum
A general framework for non-abelian symmetries is presented for matrix-product and tensor-network states in the presence of orthonormal local as well as effective basis sets. The t…