activity
20182026
most citedUnsupervised identification of topological order using predictive models

67 citations · 243 across the 16 of their papers we have counts for

collaborators

16 papers

cs.LG2026

A Blueprint for Equilibrium-Based Differentiable Continuous-Variable Thermodynamic Computing

Owen Lockwood, Jérémy Béjanin, Joost Bus +4

To help address the escalating energy and latency demands of machine-learning workloads, we introduce a blueprint for an energy-efficient and fast thermodynamic computing stack tha…

cond-mat.dis-nn2024★ 3 cited

Machine learning the Ising transition: A comparison between discriminative and generative approaches

Difei Zhang, Frank Schäfer, Julian Arnold

The detection of phase transitions is a central task in many-body physics. To automate this process, the task can be phrased as a classification problem. Classification problems ca…

cs.LG2024★ 1 cited

Phase Transitions in the Output Distribution of Large Language Models

Julian Arnold, Flemming Holtorf, Frank Schäfer +1

In a physical system, changing parameters such as temperature can induce a phase transition: an abrupt change from one state of matter to another. Analogous phenomena have recently…

cond-mat.dis-nn2023

Machine learning phase transitions: Connections to the Fisher information

Julian Arnold, Niels Lörch, Flemming Holtorf +1

Despite the widespread use and success of machine-learning techniques for detecting phase transitions from data, their working principle and fundamental limits remain elusive. Here…

cs.LG2023

Fast Detection of Phase Transitions with Multi-Task Learning-by-Confusion

Julian Arnold, Frank Schäfer, Niels Lörch

Machine learning has been successfully used to study phase transitions. One of the most popular approaches to identifying critical points from data without prior knowledge of the u…

quant-ph2023★ 15 cited

Mapping out phase diagrams with generative classifiers

Julian Arnold, Frank Schäfer, Alan Edelman +1

One of the central tasks in many-body physics is the determination of phase diagrams. However, mapping out a phase diagram generally requires a great deal of human intuition and un…

quant-ph2023

Performance Bounds for Quantum Feedback Control

Flemming Holtorf, Frank Schäfer, Julian Arnold +2

The limits of quantum feedback control have immediate consequences for quantum information science at large, yet remain largely unexplored. Here, we combine quantum filtering theor…

cond-mat.stat-mech2022★ 4 cited

Data-driven reconstruction of spectral conductivity and chemical potential from thermoelectric transport data

Tomoki Hirosawa, Frank Schäfer, Hideaki Maebashi +2

The spectral conductivity, i.e., the electrical conductivity as a function of the Fermi energy, is a cornerstone in determining the thermoelectric transport properties of electrons…

cond-mat.dis-nn2022★ 15 cited

Replacing neural networks by optimal analytical predictors for the detection of phase transitions

Julian Arnold, Frank Schäfer

Identifying phase transitions and classifying phases of matter is central to understanding the properties and behavior of a broad range of material systems. In recent years, machin…

cond-mat.mes-hall2022

Automated reconstruction of bound states in bilayer graphene quantum dots

Jozef Bucko, Frank Schäfer, František Herman +5

Bilayer graphene is a nanomaterial that allows for well-defined, separated quantum states to be defined by electrostatic gating and, therefore, provides an attractive platform to c…

cs.MS2021

AbstractDifferentiation.jl: Backend-Agnostic Differentiable Programming in Julia

Frank Schäfer, Mohamed Tarek, Lyndon White +1

No single Automatic Differentiation (AD) system is the optimal choice for all problems. This means informed selection of an AD system and combinations can be a problem-specific var…

quant-ph2021★ 18 cited

Control of Stochastic Quantum Dynamics by Differentiable Programming

Frank Schäfer, Pavel Sekatski, Martin Koppenhöfer +2

Control of the stochastic dynamics of a quantum system is indispensable in fields such as quantum information processing and metrology. However, there is no general ready-made appr…

cond-mat.dis-nn2020★ 27 cited

Interpretable and unsupervised phase classification

Julian Arnold, Frank Schäfer, Martin Žonda +1

Fully automated classification methods that yield direct physical insights into phase diagrams are of current interest. Here, we demonstrate an unsupervised machine learning method…

quant-ph2020★ 50 cited

A differentiable programming method for quantum control

Frank Schäfer, Michal Kloc, Christoph Bruder +1

Optimal control is highly desirable in many current quantum systems, especially to realize tasks in quantum information processing. We introduce a method based on differentiable pr…

quant-ph2019★ 67 cited

Unsupervised identification of topological order using predictive models

Eliska Greplova, Agnes Valenti, Gregor Boschung +3

Machine-learning driven models have proven to be powerful tools for the identification of phases of matter. In particular, unsupervised methods hold the promise to help discover ne…

cond-mat.stat-mech2018★ 43 cited

Divergence of predictive model output as indication of phase transitions

Frank Schäfer, Niels Lörch

We introduce a new method to identify phase boundaries in physical systems. It is based on training a predictive model such as a neural network to infer a physical system's paramet…