# Ramis Movassagh

## contact information

Research Staff Member

Cambridge Research Center, Cambridge, MA USA

+16177926246

Cambridge Research Center, Cambridge, MA USA

+16177926246

## links

**2017**

The gap of the area-weighted Motzkin spin chain is exponentially small

Lionel Levine, Ramis Movassagh

Lionel Levine, Ramis Movassagh

*J. Phys. A: Math. Theor.**50*(*255302*), 2017
Generic Local Hamiltonians are Gapless

Ramis Movassagh

Abstract

Ramis Movassagh

*Physical Review Letters**119*(*220504*), 2017Abstract

The Green's function for the Hueckel (tight-binding) model

Ramis Movassagh, Gilbert Strang, Yuta Tsuji, Roald Hoffmann

Ramis Movassagh, Gilbert Strang, Yuta Tsuji, Roald Hoffmann

*Journal of Mathematical Physics**58*(*3*), 033505, AIP Publishing, 2017
Entanglement and correlation functions of the quantum Motzkin spin-chain

Ramis Movassagh

Ramis Movassagh

*Journal of Mathematical Physics**58*(*3*), 031901, AIP Publishing, 2017**2016**

Eigenvalue Attraction

Ramis Movassagh

Ramis Movassagh

*Journal of Statistical Physics**162*(*3*), 615--643, Springer, 2016
Supercritical entanglement in local systems: Counterexample to the area law for quantum matter

Ramis Movassagh, Peter W. Shor

Ramis Movassagh, Peter W. Shor

*Proc. Natl. Acad. Sci. USA*, 2016**2012**

Eigenvalues and Low Energy Eigenvectors of Quantum Many-Body Systems

Ramis Movassagh

PhD Thesis, Massachusetts Institute of Technology, 2012

Ramis Movassagh

PhD Thesis, Massachusetts Institute of Technology, 2012

Criticality without frustration for quantum spin-1 chains

Sergey Bravyi, Libor Caha, Ramis Movassagh, Daniel Nagaj, Peter W Shor

Sergey Bravyi, Libor Caha, Ramis Movassagh, Daniel Nagaj, Peter W Shor

*Physical review letters**109*(*20*), 207202, APS, 2012**2011**

Density of states of quantum spin systems from isotropic entanglement

Ramis Movassagh, Alan Edelman

Ramis Movassagh, Alan Edelman

*Physical review letters**107*(*9*), 097205, APS, 2011**2010**

Unfrustrated qudit chains and their ground states

Ramis Movassagh, Edward Farhi, Jeffrey Goldstone, Daniel Nagaj, Tobias J Osborne, Peter W Shor

Ramis Movassagh, Edward Farhi, Jeffrey Goldstone, Daniel Nagaj, Tobias J Osborne, Peter W Shor

*Physical Review A**82*(*1*), 012318, APS, 2010