QMBED.jl

QMBED — Module

Native Julia request types for the shared QMBED Rust exact-diagonalization core.

All site indices are zero based so an operator request has identical meaning in Julia, Python, Rust, and the language-neutral C schema.

source

QMBED is the native Julia interface to the shared Rust exact-diagonalization core. It uses typed request values and deliberately does not reproduce Python's QuSpin object hierarchy.

using QMBED

sites = 12
basis = SpinBasis(sites=sites, up=6, momentum=0)
bonds = [
    Coupling(1.0, [site, mod(site + 1, sites)])
    for site in 0:(sites - 1)
]
zz = OperatorSpec(OpProduct([ZOp, ZOp]), bonds)
result = eigsh(basis, [zz], EigshOptions(eigenpairs=4))

All sites are zero based. Build bindings/capi before the first numerical call; importing the module and building this reference do not load the shared library.