81 citations · 209 across the 10 of their papers we have counts for
10 papers
MetaTT: A Global Tensor-Train Adapter for Parameter-Efficient Fine-Tuning
Javier Lopez-Piqueres, Pranav Deshpande, Archan Ray +3
We present MetaTT, a Tensor Train (TT) adapter framework for fine-tuning of pre-trained transformers. MetaTT enables flexible and parameter-efficient model adaptation by using a si…
Tensor Network Estimation of Distribution Algorithms
John Gardiner, Javier Lopez-Piqueres
Tensor networks are a tool first employed in the context of many-body quantum physics that now have a wide range of uses across the computational sciences, from numerical methods t…
Cons-training Tensor Networks: Embedding and Optimization Over Discrete Linear Constraints
Javier Lopez-Piqueres, Jing Chen
In this study, we introduce a novel family of tensor networks, termed constrained matrix product states (MPS), designed to incorporate exactly arbitrary discrete linear constraints…
Observing quantum measurement collapse as a learnability phase transition
Utkarsh Agrawal, Javier Lopez-Piqueres, Romain Vasseur +2
The mechanism by which an effective macroscopic description of quantum measurement in terms of discrete, probabilistic collapse events emerges from the reversible microscopic dynam…
Symmetric Tensor Networks for Generative Modeling and Constrained Combinatorial Optimization
Javier Lopez-Piqueres, Jing Chen, Alejandro Perdomo-Ortiz
Constrained combinatorial optimization problems abound in industry, from portfolio optimization to logistics. One of the major roadblocks in solving these problems is the presence…
Integrability breaking from backscattering
Javier Lopez-Piqueres, Romain Vasseur
We analyze the onset of diffusive hydrodynamics in the one-dimensional hard-rod gas subject to stochastic backscattering. While this perturbation breaks integrability and leads to…
Integrability breaking in the Rule 54 cellular automaton
Javier Lopez-Piqueres, Sarang Gopalakrishnan, Romain Vasseur
Cellular automata have recently attracted a lot of attention as testbeds to explore the emergence of many-body quantum chaos and hydrodynamics. We consider the Rule 54 model, one o…
Operator front broadening in chaotic and integrable quantum chains
Javier Lopez-Piqueres, Brayden Ware, Sarang Gopalakrishnan +1
Operator spreading under unitary time evolution has attracted a lot of attention recently, as a way to probe many-body quantum chaos. While quantities such as out-of-time-ordered c…
Hydrodynamics of nonintegrable systems from a relaxation-time approximation
Javier Lopez-Piqueres, Brayden Ware, Sarang Gopalakrishnan +1
We develop a general kinetic theory framework to describe the hydrodynamics of strongly interacting, nonequilibrium quantum systems in which integrability is weakly broken, leaving…
Mean-field entanglement transitions in random tree tensor networks
Javier Lopez-Piqueres, Brayden Ware, Romain Vasseur
Entanglement phase transitions in quantum chaotic systems subject to projective measurements and in random tensor networks have emerged as a new class of critical points separating…