Results 51 to 60 of about 21,155,000 (291)
Spin-adapted matrix product states and operators [PDF]
The Journal of Chemical Physics, 2016 Matrix product states (MPSs) and matrix product operators (MPOs) allow an alternative formulation of the density matrix renormalization group algorithm introduced by White. Here, we describe how non-abelian spin symmetry can be exploited in MPSs and MPOs by virtue of the Wigner–Eckart theorem at the example of the spin-adapted quantum chemical ...
Sebastian Keller, Markus Reiher
openaire +4 more sources
Imaginary-Time Matrix Product State Impurity Solver for Dynamical Mean-Field Theory
Physical Review X, 2015 We present a new impurity solver for dynamical mean-field theory based on imaginary-time evolution of matrix product states. This converges the self-consistency loop on the imaginary-frequency axis and obtains real-frequency information in a final real ...
F. Alexander Wolf +4 more
doaj +1 more source
A non-integrable quench from AdS/dCFT
Physics Letters B, 2019 We study the matrix product state which appears as the boundary state of the AdS/dCFT set-up where a probe D7 brane wraps two two-spheres stabilized by fluxes.
Marius de Leeuw +2 more
doaj +1 more source
Physical Review Research, 2023 The electron-phonon (e-ph) coupling system often has a large number of phonon degrees of freedom, whose spectral functions are numerically difficult to compute using matrix product state (MPS) formalisms.
Pei-Yuan Zhao, Ke Ding, Shuo Yang
doaj +1 more source
Matrix-Product Operators and States: NP-Hardness and Undecidability [PDF]
Physical Review Letters, 2014 7 pages, 2 figures; published version with improved ...
Kliesch, M., Gross, David, Eisert, Jens
openaire +4 more sources
Lattice Laughlin states of bosons and fermions at filling fractions 1/q
New Journal of Physics, 2014 We introduce a two-parameter family of strongly-correlated wave functions for bosons and fermions in lattices. One parameter, q , is connected to the filling fraction.
Hong-Hao Tu +3 more
doaj +1 more source
Boundary state bootstrap and asymptotic overlaps in AdS/dCFT
Journal of High Energy Physics, 2021 We formulate and close the boundary state bootstrap for factorizing K-matrices in AdS/CFT. We found that there are no boundary degrees of freedom in the boundary bound states, merely the boundary parameters are shifted.
Tamas Gombor, Zoltan Bajnok
doaj +1 more source
Matrix Product States for Gauge Field Theories [PDF]
Physical Review Letters, 2014 The matrix product state formalism is used to simulate Hamiltonian lattice gauge theories. To this end, we define matrix product state manifolds which are manifestly gauge invariant. As an application, we study 1+1 dimensional one flavour quantum electrodynamics, also known as the massive Schwinger model, and are able to determine very accurately the ...
Boye Buyens +4 more
openaire +3 more sources
Continuous Matrix Product States for Quantum Fields [PDF]
Physical Review Letters, 2010 We define matrix product states in the continuum limit, without any reference to an underlying lattice parameter. This allows to extend the density matrix renormalization group and variational matrix product state formalism to quantum field theories and continuum models in 1 spatial dimension. We illustrate our procedure with the Lieb-Liniger model.
F. Verstraete, J. I. Cirac
openaire +6 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source