Shivansh Malviya

Shivansh Malviya Applied Quantum Physicist

Engineering post-quantum security and hybrid infrastructure.

I design PQC crypto-agility frameworks, simulate quantum-secure networks, and evaluate hybrid quantum architectures against hard engineering constraints.

HPC
C++, Python & sparse
matrix solvers
EVAL
Falsifiable benchmarks
& failure diagnostics
ARCH
Federal threat models
& deployment constraints
About

Physics foundations, engineering realities.

My work sits at the intersection of quantum physics, cryptography, and infrastructure-facing engineering. I began with a broad fascination for cosmology and particle physics, then moved toward quantum information because it forces theory to meet implementation constraints.

I approach quantum technologies through computational physics, systems engineering, and adversarial evaluation. The protocols are elegant on paper; real deployments have to survive noise, hardware limits, integration debt, and physical attack surfaces. That is the space I work in: PQC migration, QKD resource allocation, side-channel evaluation, hybrid QML, and benchmark-gated quantum feasibility.

Experience

Selected experience

Jun 2025 to Present
Applied Quantum Physicist
Third Ray Inc. (Remote)
Authored five-phase PQC migration roadmaps; designed a falsifiable ML-KEM side-channel evaluation framework; audited hybrid SchNet + VQC models; and assessed quantum methods for power-grid workloads. Produced technical reports and decision frameworks for engineering and stakeholder use.
PQC migrationML-KEM / SCAHybrid QMLQuantum feasibility
Jan to Nov 2024
MS Thesis Researcher
IIT Indore & IISER Pune
Architected a full-stack numerical simulation pipeline in Python and Qiskit. Integrated physical-layer quantum noise models directly into classical network scheduling algorithms, bridging the gap between theoretical cryptography and operational traffic constraints.
Python / QiskitPipeline architectureSystems integrationNumerical modeling
May to Jul 2023
Graduate Researcher
Harish-Chandra Research Institute
Implemented sparse-matrix Hamiltonian construction and ARPACK iterative solvers in C++ for transverse-field Ising chains up to N=22. Authored custom, dependency-free partial trace routines to resolve high-performance computing (HPC) compilation failures, and verified Wootters concurrence scaling at J/h=1.
Many-body physicsSparse matricesARPACKC++
Selected work

Quantum systems, migration, and model building

Selected technical work across quantum ML, secure networking, post-quantum migration, and research communication.

Materials Informatics / Hybrid QML Research Poster

QML for 2D Materials Property Prediction

Hybrid SchNet + VQC framework over a 6,351-entry 2DMatPedia corpus (≈4,500 valid bandgap labels); R² ≈ 0.782, MAE = 0.439 eV (single-fold baseline) achieved after resolving target-leakage in spatial normalizers.

Research posterFailure diagnosticsVQCSchNetPennyLane
Protocol + Network Simulation MS Thesis

QKD Resource Allocation in Optical Networks

MS thesis linking BB84 key negotiation under noise and eavesdropping with adaptive routing and quantum-resource allocation on a 14-node optical network.

ThesisNSFNETAdaptive routingQKRA heuristicsBB84Qiskit
Migration Strategy

PQC Migration Roadmaps

Authored a white paper and five-phase migration roadmaps intended for federal agency deployment scenarios, contextualized within the $7.1B federal migration scope through Mosca's Theorem risk prioritization, hybrid transition design, and crypto-agility.

Crypto-agilityMosca's TheoremHybrid transitionCBOM / CycloneDX
Power-Grid Analytics Decision Framework

Quantum Power-Grid Analytics

Authored a literature-grounded white paper and decision framework for power-grid quantum adoption, mapping nine algorithm families to grid workloads and screening them against QRAM, noise, and hybrid-workflow constraints.

White paperGrid workloadsHardware constraintsAlgorithm screening
Evaluation Design Research Direction

PQC Side-Channel Analysis

Designed a falsifiable framework for testing quantum-kernel key recovery against strong classical baselines, with staged datasets, key-rank benchmarks, and explicit claim gates. Retained as an independent research direction.

Side-channel analysisML-KEM / KyberQuantum kernelsKey-rank evaluation
Quantum Readiness Strategy Delivered White Paper

Quantum Workforce Development

Authored and delivered a power-sector readiness strategy linking a three-tier National Quantum Grid Academy to staged PQC, sensing, and benchmark-gated hybrid-computing adoption.

White paperCurriculum architecturePQC migrationBenchmark-gated computingQuantum-sensing pilots
Editorial & Verification

Research Communication

Evidence-first research communications for Quantum Buzzz, combining editorial review, citation forensics, and hype reduction before publication.

AuditingEditorial workflowCitation forensicsTechnical review
Many-Body Physics Graduate Researcher

Concurrence at Quantum Phase Transitions

C++ sparse Hamiltonian solvers and custom partial-trace simulations tracking ground-state entanglement (Wootters concurrence) near the quantum critical point ($J/h = 1$) for spin chains up to N=22 spins.

Entanglement scalingQPTSparse matricesC++ARPACK solvers
Focus

Applied research under operational constraints

I turn quantum theory, standards, and literature evidence into simulations, decision frameworks, migration roadmaps, and deployment-aware technical strategies.

QKD Resource Allocation

Built and evaluated a two-layer thesis simulation connecting BB84 security behavior to adaptive routing and wavelength/time-slot allocation on the 14-node NSFNET topology. Compared three allocation policies through QBER, SKR, SRCR, TUR, and NSP after correcting indexing and logic defects in the analysis pipeline.

PQC Migration & Crypto-Agility

Turned post-quantum standards and deployment constraints into a confidential white paper and five-phase migration roadmaps intended for federal agency deployment scenarios, addressing the $7.1B federal migration scope through Mosca's Theorem risk prioritization, hybrid transition design, and crypto-agility.

QML for Materials Models

Built and audited three hybrid quantum-classical architecture directions for bandgap prediction on a 6,351-entry 2DMatPedia-derived corpus. Diagnosed collapse-to-mean and target-leakage failure modes, then established a verified SchNet + VQC single-fold baseline of R² ≈ 0.782.

Power-Grid Quantum Feasibility

Authored a white paper and decision framework for power-grid quantum adoption, separating near-term hybrid pilots from immature approaches using hardware limits, QRAM data-loading constraints, classical baselines, and end-to-end advantage criteria.

Quantum Workforce & Curriculum (QGA)

Sole-authored and delivered a power-sector readiness strategy built around a three-tier National Quantum Grid Academy and staged Defend–Sense–Compute adoption. Defined role-specific curricula, regional delivery, workforce KPIs, benchmark-gated pilot templates, governance, risk mitigation, and funding pathways.

Skills

Research capabilities & technical stack

Quantum Modeling & Simulation

Qiskit and PennyLane workflows for variational circuits and VQC/QSVM prototypes, plus VQE/QAOA and Hamiltonian-simulation framing.

Secure Quantum Communications

BB84 security simulation, QBER/SKR analysis, QKD-secured optical-network modeling, and adaptive key-resource allocation.

PQC Transition & Evaluation

ML-KEM, ML-DSA, and SLH-DSA families; CBOM-style discovery, HNDL risk, crypto-agility, migration planning, and side-channel assessment.

Scientific Computing & Numerical Methods

Python, C++, SciPy, sparse methods, Lanczos diagonalization, and high-precision numerical verification for physics simulations.

ML Modeling & Diagnostics

PyTorch, SchNet/GNN workflows, hybrid model integration, classical baseline definition, and rigorous failure-mode diagnosis.

Feasibility & Benchmark Design

Mapping operational workloads to candidate quantum methods, defining pilot metrics, maturity gates, and end-to-end advantage criteria.

Reproducible Research

Git, LaTeX, reproducible Jupyter environments, structured evidence review, and verification-focused technical documentation.

Technical Strategy

Migration roadmaps, risk analyses, decision frameworks, and audience-aware research communications.

AI-Augmented Workflows

Leveraging LLMs and agentic systems to rapidly scaffold prototypes, automate data pipelines, and deploy research tooling.

Outside the lab

Exploring the intersections of music, literature, systems thinking, philosophy, and system architecture experiments.

Exams & certsArmed forcesGuitarPhilosophyVideo games
State Convenor Dec 2022 - Dec 2023
Think India, Western Maharashtra
Contact

Get in touch

Open to quantum computing research roles, PhD opportunities, technical discussions, and collaborations in PQC, QML, hybrid quantum-classical materials modeling, and infrastructure-facing quantum work.