A. Green

collaborators

2 papers

cond-mat.stat-mech2025

Transition between critical antiferromagnetic phases in the $J_{1}$ - $J_{2}$ spin chain

Adam J. McRoberts, Chris Hooley, A. G. Green

The $J_{1}$ - $J_{2}$ spin chain is one of the canonical models of quantum magnetism, and has long been known to host a critical antiferromagnetic phase with power-law decay of spin corr…

cond-mat.str-el2025

A Generalised Haldane Map from the Matrix Product State Path Integral to the Critical Theory of the $J_{1}$ - $J_{2}$ Chain

F. Azad, Adam J. McRoberts, Chris Hooley +1

We study the $J_{1}$ - $J_{2}$ spin- $1/2$ chain using a path integral constructed over matrix product states (MPS). By virtue of its non-trivial entanglement structure, the MPS ansatz ca…

Transition between critical antiferromagnetic phases in the J1​-J2​ spin chain

A Generalised Haldane Map from the Matrix Product State Path Integral to the Critical Theory of the J1​-J2​ Chain

Transition between critical antiferromagnetic phases in the $J_{1}$ - $J_{2}$ spin chain

A Generalised Haldane Map from the Matrix Product State Path Integral to the Critical Theory of the $J_{1}$ - $J_{2}$ Chain