Research background

Research

Quantum Computing · Quantum Machine Learning · AI

Physicist turned
Quantum AI Researcher.

I am a Quantum Computing Scientist and Quantum Machine Learning Researcher at Quantum Neural Technologies (QN⊗T) SA, with a BSc in Physics (University of Patras) and an MSc in Data Science & Machine Learning from the National Technical University of Athens (NTUA). My work sits at the intersection of quantum algorithms, variational quantum circuits, and classical machine learning — with a focus on problems where quantum methods offer genuine advantage.

My research spans hybrid quantum-classical architectures for combinatorial optimisation and protein folding, quantum randomness certification, and Physics-Informed Neural Networks for engineering problems. I have hands-on experience with IBM Quantum hardware, PennyLane, PyTorch, and Microsoft Azure Quantum.

MSc — NTUA, Data Science & ML BSc — Physics, University of Patras Researcher @ QN⊗T SA Prachi J. Vakharia Global Quantum Scholarship (2023)

Quantum Algorithms & VQAs

VQE, QAOA, variational circuits for optimisation and quantum chemistry.

Quantum Machine Learning

Hybrid quantum-classical models, quantum kernels, QNNs.

Quantum Cryptography & Randomness

QKD protocols, device-independent randomness certification.

Physics-Informed Neural Networks

PINNs for Sturm-Liouville problems, soil-structure interaction.

Publications & Theses

Preprint 2026 Not peer-reviewed

Spacetime as a Causal Viscous Fluid: A Single Lagrangian for Gravity, Electromagnetism, and the Emergence of Schrödinger Dynamics

Independent Researcher · Zenodo · DOI: 10.5281/zenodo.20760399

A deterministic field theory modelling spacetime as a relativistic viscous fluid on a dynamical Lorentzian manifold. A single action principle unifies gravity, electromagnetism (with structurally guaranteed massless photon via gauge-invariant derivative), and quantum mechanics — recovering the Schrödinger equation in the non-relativistic limit via the Madelung transformation, where the quantum potential emerges from the medium's gradient energy. The viscous sector (Israel–Stewart relaxation) renders the system hyperbolic and causal; total energy is exactly conserved while wave energy decreases monotonically via viscous entropy production. The framework also provides a candidate superdeterminism mechanism via non-factorization of the Gauss-constrained initial-data surface, offering a loophole to Bell's theorem without ad hoc assumptions.

Unified Field TheoryGeneral RelativityGauge TheoryViscous Fluid DynamicsMadelung Transformde Broglie–BohmBell's TheoremLagrangian Field Theory
Master Thesis 2024

Hybrid Quantum-Classical Machine Learning for the Problem of Protein Folding: Comparison of VQE and QAOA & Implementation on IBM's Real Devices

National Technical University of Athens (NTUA) · MSc Data Science & Machine Learning · ECTS: 90

Developed and benchmarked hybrid quantum-classical approaches to the protein folding problem using Variational Quantum Eigensolver (VQE) and Quantum Approximate Optimization Algorithm (QAOA). Implemented circuits on IBM quantum hardware and evaluated performance against classical baselines, with rigorous noise analysis and error mitigation.

VQEQAOAIBM QuantumPennyLaneProtein FoldingNoise Mitigation
Conference Paper 2023

A Physics-Informed Neural Network (PINN) Approach for Soil-Pile Interaction

COMPDYN 2023 · DOI: 10.7712/120123.10610.20582 · Quantum Neural Technologies (QN⊗T) SA

Applied PINNs to solve the Sturm-Liouville boundary value problem arising in soil-pile interaction dynamics. The approach handles inhomogeneous soil profiles without the geometric constraints of FEM, using the number of nodes as a convergence criterion — a novel contribution of this work. Presented at COMPDYN 2023.

PINNsPyTorchSturm-LiouvilleScientific MLGeotechnics
Research Report 2022

Testing Quantum Computers with the Protocol of Quantum State Matching

Wigner Research Center for Physics · Internship Research Report

Developed the theoretical background for a protocol generating maximally entangled qubits between Alice and Bob. Decomposed the required unitary matrices for IBM Quantum implementation, constructed the circuits, analysed error distributions, and identified equivalent gate sets with fewer gates and lower error rates. Applied error mitigation techniques throughout.

IBM QuantumEntanglementGate DecompositionError MitigationQKD
Course Project 2022

Depression Detection & Classification from Actigraph Biosensor Data

MSc Course: Data Science & Machine Learning · National Technical University of Athens (NTUA) · github.com/Bio-Data-Analysis-Team2-DSLM/Code

Built an explainable ML pipeline for detecting and classifying depression (unipolar/bipolar) using wrist actigraph motor activity data from 60 patients. Implemented a 1D-CNN for automatic feature extraction from raw actigraph signals alongside handcrafted research-based features, with XGBoost as the primary explainable classifier. Addressed significant class imbalance via data augmentation, and compared against logistic regression baselines. Dataset: Depresjon (ACM MM '18).

1D-CNNXGBoostExplainable AIBiosensor DataDepression DetectionData AugmentationPython
Course Project 2022

NoobCash — A Blockchain & Cryptocurrency Implementation

MSc Course: Distributed Systems · National Technical University of Athens (NTUA) · github.com/tolios/NoobCash

Designed and implemented a simplified cryptocurrency system from scratch in Python, covering the full blockchain stack: peer-to-peer networking, proof-of-work mining, transaction validation, and consensus. Configurable parameters include node count, block capacity, and mining difficulty. Experiments were conducted using pre-generated transaction sets to benchmark throughput and consistency across distributed nodes.

BlockchainDistributed SystemsP2P NetworkingProof-of-WorkPythonConsensus Algorithms
Bachelor Thesis 2021

Dynamical Decoupling on Quantum Encoded States

University of Patras · BSc Physics · Grade: 10/10

Theoretical and computational study of dynamical decoupling sequences as a technique for suppressing decoherence in quantum encoded states. Explored how tailored pulse sequences preserve quantum information over time in the presence of environmental noise.

Dynamical DecouplingQuantum Error CorrectionDecoherenceQuantum Information

Research at QN⊗T SA

At Quantum Neural Technologies, I contribute to multiple active research lines aimed at bringing quantum computing methods into practical use for industry.

Quantum Randomness Certification

Protocols for generating and certifying true randomness using quantum mechanical principles, with applications in cryptography and secure key generation.

QKDDevice-IndependenceCryptography

VQA Simulator & Research Platform

Building a VQA-specialised simulator and platform at QN⊗T SA that allows users and researchers to define and run VQE problems with custom ansatzes — without low-level circuit implementation overhead. The platform targets researchers needing flexible ansatz design for combinatorial optimisation and quantum chemistry problems.

VQECustom AnsatzVQA PlatformSimulatorQuantum Chemistry

Protein Folding via VQAs & Quantum-Enhanced Monte Carlo

Investigating ensemble prediction for protein folding using Variational Quantum Algorithm and Quantum-Enhanced Monte Carlo sampling. The approach leverages quantum superposition to explore conformational energy landscapes more efficiently than classical methods, with ensemble averaging to improve prediction robustness.

Protein FoldingVQAsMonte CarloEnsemble PredictionQuantum Sampling

Certifications

AI Problem Solving & Advanced Estimation Algorithms

Certified Digital Technology Professional (CDTP)

Aristotle Certification Jun 2023 · valid to Jun 2029
ID: GR-DT 0007963 View credential →

Neural Networks and Deep Learning

DeepLearning.AI

Coursera Oct 2022

Introduction to AI & Prediction and Estimation Algorithms

National Technical University of Athens

NTUA Jun 2023

Supervised Learning with scikit-learn

DataCamp

DataCamp Feb 2022

Introduction to Data Engineering

DataCamp

DataCamp Jun 2023

Data Manipulation with pandas

DataCamp

DataCamp Jan 2022

Education & Affiliations

From theoretical physics to quantum hardware to machine learning — a trajectory built around understanding nature at the deepest level and applying it computationally.

Python PyTorch PennyLane Qiskit IBM Quantum Microsoft Azure Quantum TensorFlow NumPy / SciPy LaTeX Deep Learning scikit-learn pandas SQL GNU Octave

Aug 2022 – Present

Quantum Computing Scientist

Quantum Neural Technologies (QN⊗T) SA · Athens, Greece

Feb 2023 – Present

Quantum Machine Learning Researcher

Quantum Neural Technologies (QN⊗T) SA · Microsoft Azure, VQAs

Sep 2022 – Jul 2024

MSc — Data Science & Machine Learning

National Technical University of Athens (NTUA) · ECTS: 90

Oct 2021 – Jan 2022

Quantum Computing Scientist — Internship

Wigner Research Center for Physics · Budapest, Hungary

Oct 2017 – Oct 2021

BSc — Physics

University of Patras · Grade: 8/10 · ECTS: 240

2017 · Academic Distinctions

National university entrance exams (Πανελλήνιες): 18,728 pts — Mathematics 19.3/20 (top 1%), Physics 19.7/20. Reached the 3rd stage (Archimedes) of the Hellenic Mathematical Society competition.

Interested in collaborating?

Whether you are a researcher, a PhD supervisor, or an industry partner exploring quantum-classical methods — I am open to conversations about research collaborations, joint projects, and opportunities.