4 papers
Efficient Eigenstate Preparation in an Integrable Model with Hilbert Space Fragmentation
Roberto Ruiz, Alejandro Sopena, Balázs Pozsgay +1
We consider the preparation of all the eigenstates of spin chains using quantum circuits. It is known that generic eigenstates of free-fermionic spin chains can be prepared with ci…
Bethe Ansatz, Quantum Circuits, and the F-basis
Roberto Ruiz, Alejandro Sopena, Esperanza López +2
The Bethe Ansatz is a method for constructing exact eigenstates of quantum-integrable spin chains. Recently, deterministic quantum algorithms, referred to as "algebraic Bethe circu…
Photonic implementation of the quantum Morra game
Andres Ulibarrena, Alejandro Sopena, Russell Brooks +4
In this paper, we study a faithful translation of a two-player quantum Morra game, which builds on previous work by including the classical game as a special case. We propose a nat…
The Bethe Ansatz as a Quantum Circuit
Roberto Ruiz, Alejandro Sopena, Max Hunter Gordon +2
The Bethe ansatz represents an analytical method enabling the exact solution of numerous models in condensed matter physics and statistical mechanics. When a global symmetry is pre…