Search Results for author: Michael Spannowsky

Found 25 papers, 7 papers with code

Training Neural Networks with Universal Adiabatic Quantum Computing

no code implementations24 Aug 2023 Steve Abel, Juan Carlos Criado, Michael Spannowsky

The training of neural networks (NNs) is a computationally intensive task requiring significant time and resources.

Generative Invertible Quantum Neural Networks

1 code implementation24 Feb 2023 Armand Rousselot, Michael Spannowsky

Invertible Neural Networks (INN) have become established tools for the simulation and generation of highly complex data.

Quantum-probabilistic Hamiltonian learning for generative modelling & anomaly detection

1 code implementation7 Nov 2022 Jack Y. Araz, Michael Spannowsky

This study investigates the possibility of learning and utilising a system's Hamiltonian and its variational thermal state estimation for data analysis techniques.

Anomaly Detection

A Genetic Quantum Annealing Algorithm

no code implementations15 Sep 2022 Steven Abel, Luca A. Nutricati, Michael Spannowsky

However, the population of individuals is defined by the continuous couplings on the quantum annealer, which then give rise via quantum annealing to the set of corresponding phenotypes that represent attempted solutions.

Identifying magnetic antiskyrmions while they form with convolutional neural networks

no code implementations23 May 2022 Jack Y. Araz, Juan Carlos Criado, Michael Spannowsky

We use a Convolutional Neural Network (CNN) to identify the relevant features in the thermodynamical phases of chiral magnets, including (anti-)skyrmions, bimerons, and helical and ferromagnetic states.

Multi-Label Classification

IRC-safe Graph Autoencoder for unsupervised anomaly detection

no code implementations26 Apr 2022 Oliver Atkinson, Akanksha Bhardwaj, Christoph Englert, Partha Konar, Vishal S. Ngairangbam, Michael Spannowsky

Anomaly detection through employing machine learning techniques has emerged as a novel powerful tool in the search for new physics beyond the Standard Model.

Unsupervised Anomaly Detection

Qade: Solving Differential Equations on Quantum Annealers

1 code implementation7 Apr 2022 Juan Carlos Criado, Michael Spannowsky

We present a general method, called Qade, for solving differential equations using a quantum annealer.

Completely Quantum Neural Networks

no code implementations23 Feb 2022 Steve Abel, Juan C. Criado, Michael Spannowsky

Artificial neural networks are at the heart of modern deep learning algorithms.

A duality connecting neural network and cosmological dynamics

no code implementations22 Feb 2022 Sven Krippendorf, Michael Spannowsky

We demonstrate that the dynamics of neural networks trained with gradient descent and the dynamics of scalar fields in a flat, vacuum energy dominated Universe are structurally profoundly related.

Classical versus Quantum: comparing Tensor Network-based Quantum Circuits on LHC data

1 code implementation21 Feb 2022 Jack Y. Araz, Michael Spannowsky

Tensor Networks (TN) are approximations of high-dimensional tensors designed to represent locally entangled quantum many-body systems efficiently.

Tensor Networks

Quantum-inspired event reconstruction with Tensor Networks: Matrix Product States

1 code implementation15 Jun 2021 Jack Y. Araz, Michael Spannowsky

Tensor Networks are non-trivial representations of high-dimensional tensors, originally designed to describe quantum many-body systems.

Tensor Networks

Quantum Optimisation of Complex Systems with a Quantum Annealer

no code implementations28 May 2021 Steve Abel, Andrew Blance, Michael Spannowsky

These properties include an Ising-like phase transition that can be induced by either a change in 'quantum-ness' of the theory, or by a scaling the Ising couplings up or down.

Elvet -- a neural network-based differential equation and variational problem solver

1 code implementation26 Mar 2021 Jack Y. Araz, Juan Carlos Criado, Michael Spannowsky

We present Elvet, a Python package for solving differential equations and variational problems using machine learning methods.

BIG-bench Machine Learning

Extended Higgs sectors, effective field theory and Higgs phenomenology

no code implementations2 Mar 2021 Anisha, Upalaparna Banerjee, Joydeep Chakrabortty, Christoph Englert, Michael Spannowsky

We consider the phenomenological implications of charged scalar extensions of the SM Higgs sector in addition to EFT couplings of this new state to SM matter.

High Energy Physics - Phenomenology High Energy Physics - Experiment

Exploring instantons with spin-lattice systems

no code implementations18 Dec 2020 Sebastian Schenk, Michael Spannowsky

Instanton processes are present in a variety of quantum field theories relevant to high energy as well as condensed matter physics.

High Energy Physics - Theory Mesoscale and Nanoscale Physics

The Emergence of Electroweak Skyrmions through Higgs Bosons

no code implementations14 Dec 2020 Juan Carlos Criado, Valentin V. Khoze, Michael Spannowsky

Skyrmions are extended field configurations, initially proposed to describe baryons as topological solitons in an effective field theory of mesons.

High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory

Classifying Standard Model Extensions Effectively with Precision Observables

no code implementations7 Dec 2020 Supratim Das Bakshi, Joydeep Chakrabortty, Michael Spannowsky

Due to the complexity of the effective theory when taking all the Standard Model symmetries and degrees of freedoms into account, tensioning the entire system in a completely agnostic way against experimental measurements results in constraints on the Wilson Coefficients of the effective operators that either bears little information or challenge intrinsic assumptions imposed on the effective field theory framework.

High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory

Precision SMEFT bounds from the VBF Higgs at high transverse momentum

no code implementations6 Nov 2020 Jack Y. Araz, Shankha Banerjee, Rick S. Gupta, Michael Spannowsky

We study the production of Higgs bosons at high transverse momenta via vector-boson fusion (VBF) in the Standard Model Effective Field Theory (SMEFT).

High Energy Physics - Phenomenology High Energy Physics - Experiment

Searching for QCD Instantons at Hadron Colliders

no code implementations5 Oct 2020 Valentin V. Khoze, Daniel L. Milne, Michael Spannowsky

QCD instantons are arguably the best motivated yet unobserved nonperturbative effects predicted by the Standard Model.

High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory

Power meets Precision to explore the Symmetric Higgs Portal

no code implementations18 Feb 2020 Christoph Englert, Joerg Jaeckel, Michael Spannowsky, Panagiotis Stylianou

We perform a comprehensive study of collider aspects of a Higgs portal scenario that is protected by an unbroken ${\mathbb{Z}}_2$ symmetry.

High Energy Physics - Phenomenology High Energy Physics - Experiment

Solving differential equations with neural networks: Applications to the calculation of cosmological phase transitions

2 code implementations14 Feb 2019 Maria Laura Piscopo, Michael Spannowsky, Philip Waite

Starting from the observation that artificial neural networks are uniquely suited to solving optimisation problems, and most physics problems can be cast as an optimisation task, we introduce a novel way of finding a numerical solution to wide classes of differential equations.

High Energy Physics - Phenomenology High Energy Physics - Theory

A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case

no code implementations19 Apr 2015 Sergey Alekhin, Wolfgang Altmannshofer, Takehiko Asaka, Brian Batell, Fedor Bezrukov, Kyrylo Bondarenko, Alexey Boyarsky, Nathaniel Craig, Ki-Young Choi, Cristóbal Corral, David Curtin, Sacha Davidson, André de Gouvêa, Stefano Dell'Oro, Patrick deNiverville, P. S. Bhupal Dev, Herbi Dreiner, Marco Drewes, Shintaro Eijima, Rouven Essig, Anthony Fradette, Björn Garbrecht, Belen Gavela, Gian F. Giudice, Dmitry Gorbunov, Stefania Gori, Christophe Grojean, Mark D. Goodsell, Alberto Guffanti, Thomas Hambye, Steen H. Hansen, Juan Carlos Helo, Pilar Hernandez, Alejandro Ibarra, Artem Ivashko, Eder Izaguirre, Joerg Jaeckel, Yu Seon Jeong, Felix Kahlhoefer, Yonatan Kahn, Andrey Katz, Choong Sun Kim, Sergey Kovalenko, Gordan Krnjaic, Valery E. Lyubovitskij, Simone Marcocci, Matthew Mccullough, David McKeen, Guenakh Mitselmakher, Sven-Olaf Moch, Rabindra N. Mohapatra, David E. Morrissey, Maksym Ovchynnikov, Emmanuel Paschos, Apostolos Pilaftsis, Maxim Pospelov, Mary Hall Reno, Andreas Ringwald, Adam Ritz, Leszek Roszkowski, Valery Rubakov, Oleg Ruchayskiy, Jessie Shelton, Ingo Schienbein, Daniel Schmeier, Kai Schmidt-Hoberg, Pedro Schwaller, Goran Senjanovic, Osamu Seto, Mikhail Shaposhnikov, Brian Shuve, Robert Shrock, Lesya Shchutska, Michael Spannowsky, Andy Spray, Florian Staub, Daniel Stolarski, Matt Strassler, Vladimir Tello, Francesco Tramontano, Anurag Tripathi, Sean Tulin, Francesco Vissani, Martin W. Winkler, Kathryn M. Zurek

We demonstrate that the SHiP experiment has a unique potential to discover new physics and can directly probe a number of solutions of beyond the Standard Model puzzles, such as neutrino masses, baryon asymmetry of the Universe, dark matter, and inflation

High Energy Physics - Phenomenology High Energy Physics - Experiment

Off-Shell Higgs Coupling Measurements in BSM scenarios

no code implementations20 Oct 2014 Christoph Englert, Yotam Soreq, Michael Spannowsky

Proposals of measuring the off-shell Higgs contributions and first measurements at the LHC have electrified the Higgs phenomenology community for two reasons: Firstly, probing interactions at high invariant masses and momentum transfers is intrinsically sensitive to new physics beyond the Standard Model, irrespective of a resonant or non-resonant character of a particular BSM scenario.

High Energy Physics - Phenomenology High Energy Physics - Experiment

Limitations and Opportunities of Off-Shell Coupling Measurements

no code implementations1 May 2014 Christoph Englert, Michael Spannowsky

Indirect constraints on the total Higgs width $\Gamma_h$ from correlating Higgs signal strengths with cross section measurements in the off-shell region for $p(g)p(g)\to 4\ell$ production have received considerable attention recently, and the CMS collaboration have published a first measurement.

High Energy Physics - Phenomenology High Energy Physics - Experiment

Stop Reconstruction with Tagged Tops

no code implementations14 Jun 2010 Tilman Plehn, Michael Spannowsky, Michihisa Takeuchi, Dirk Zerwas

Using a Standard-Model top tagger on fully hadronic top decays we can not only extract the stop signal but also measure the top momentum.

High Energy Physics - Phenomenology High Energy Physics - Experiment

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