7 papers
Mass inequality for the quark propagator
Dean Lee, Richard Thomson
We show that for any gauge-fixing scheme with positive semi-definite functional integral measure, the inverse correlation length of the quark propagator is bounded below by one-hal…
Permutation zones and the fermion sign problem
Dean Lee
We present a new approach to the problem of alternating signs for fermionic many body Monte Carlo simulations. We demonstrate that the exchange of identical fermions is typically s…
Dynamical Fermions in Hamiltonian Lattice Gauge Theory
Dean Lee
We describe a first attempt to understand dynamical fermions within a Hamiltonian framework. As a testing ground we study compact QED3 which shares some important features of QCD4…
Lower energy bounds for quantum lattice Hamiltonians
Dean Lee, Nathan Salwen
We derive general lower energy bounds for the ground state energy of any translationally invariant quantum lattice Hamiltonian. The bounds are given by the ground state energy of r…
Modal field theory and quasi-sparse eigenvector diagonalization
Dean Lee
We review recent developments in non-perturbative field theory using modal field methods. We discuss Monte Carlo results as well as a new diagonalization technique known as the qua…
On Coherency-Induced Ordering in Substitutional Alloys: I. Analytical
Dean J. Lee, Jong K. Lee
As pointed out by Linus Pauling in his classic work on the relationship between crystal packing and ionic radius ratio, a difference in atomic size can be accommodated more readily…