Observation of an Excited State

R Aaij, C Abellán Beteta, B Adeva, M Adinolfi… - Physical review …, 2019 - APS
Using pp collision data corresponding to an integrated luminosity of 8.5 fb-1 recorded by the
LHCb experiment at center-of-mass energies of s= 7, 8, and 13 TeV, the observation of an …

Phase Separation at all Interaction Strengths in the tJ Model

CS Hellberg, E Manousakis - Physical review letters, 1997 - APS
We investigate the phase diagram of the two-dimensional tJ model using a recently
developed Green's function Monte Carlo method for lattice fermions. We use the technique …

Phase Diagram and Pairing Symmetry of the Two-Dimensional t- J Model by a Variation Theory

H Yokoyama, M Ogata - Journal of the Physical Society of Japan, 1996 - journals.jps.jp
Two-dimensional tJ model is studied by a variational Monte Carlo method, using Gutzwiller-
Jastrow-type wave functions. Various kinds of superconducting pairing symmetries are …

Superconductivity near phase separation in models of correlated electrons

E Dagotto, J Riera, YC Chen, A Moreo, A Nazarenko… - Physical Review B, 1994 - APS
Numerical and analytical studies of several models of correlated electrons are discussed.
Based on exact diagonalization and variational Monte Carlo techniques, we have found …

Enhancement of superexchange pairing in the periodically driven Hubbard model

JR Coulthard, SR Clark, S Al-Assam, A Cavalleri… - Physical Review B, 2017 - APS
Recent experiments performed on cuprates and alkali-doped fullerides have demonstrated
that key signatures of superconductivity can be induced above the equilibrium critical …

Ground-state phase diagram of the one-dimensional - model

A Moreno, A Muramatsu, SR Manmana - Physical Review B—Condensed …, 2011 - APS
We examine the ground-state phase diagram of the tJ model in one dimension by means of
the density matrix renormalization group. This model is characterized by a rich phase …

Production of doubly heavy-flavored hadrons at colliders

XC Zheng, CH Chang, Z Pan - Physical Review D, 2016 - APS
Production of the doubly heavy-flavored hadrons (B c meson, doubly heavy baryons Ξ cc, Ξ
bc, Ξ bb, their excited states, and antiparticles of them as well) at e+ e-colliders is …

Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of the meson mass

M Gómez-Rocha, T Hilger, A Krassnigg - Physical Review D, 2016 - APS
We extend earlier investigations of heavy-light pseudoscalar mesons to the vector case,
using a simple model in the context of the Dyson-Schwinger-Bethe-Salpeter approach. We …

Spin gap in a doped Kondo chain

AE Sikkema, I Affleck, SR White - Physical review letters, 1997 - APS
We show that the Kondo chain away from half filling has a spin gap upon the introduction of
an additional direct Heisenberg coupling between localized spins. This is understood in the …

Bose metals and insulators on multileg ladders with ring exchange

RV Mishmash, MS Block, RK Kaul, DN Sheng… - Physical Review B …, 2011 - APS
We establish compelling evidence for the existence of new quasi-one-dimensional
descendants of the d-wave Bose liquid (DBL), an exotic two-dimensional quantum phase of …