🚀 Verified Quantum Advantage

India Hits the
Quantum Jackpot

First Indian Lab Verified by Global Quantum Advantage Tracker

An Indian research team led by Dr. Indrakshi Raychowdhury at BITS Pilani has achieved a historic milestone — successfully simulating complex subatomic particle behaviour on a 120-qubit IBM quantum processor. This marks the first time an Indian laboratory's claim of 'quantum advantage' has been independently verified and marked 'ACTIVE' on the global Quantum Advantage Tracker.

120
Qubits
20s
Quantum Time
2h
Classical Time
360x
Speedup

What Happened

The Breakthrough, Step by Step

1

🎯 The Challenge

Scientists needed to simulate how subatomic particles (like electrons and quarks) behave when they interact with each other. This is called "complex subatomic particle behaviour" — basically, predicting how the tiniest building blocks of matter move and change.

💡 Simple Terms

Imagine trying to predict how every single drop of water in a waterfall moves, spins, and collides with other drops — all at the same time. That's what simulating subatomic particles is like. Classical computers struggle because there are too many possibilities to calculate one by one.

2

🔬 The Experiment

Dr. Raychowdhury's team at BITS Pilani used IBM's 120-qubit quantum processor (called "Eagle") to run the simulation. The quantum computer used a special algorithm to model particle interactions in a way that leverages quantum mechanics.

💡 Simple Terms

Think of a qubit as a magical coin that can be heads, tails, AND both at the same time. A classical computer flips one coin at a time. A quantum computer with 120 qubits flips 120 magical coins simultaneously — exploring millions of outcomes at once instead of one by one.

3

⚡ The Result

The quantum processor completed the simulation in just 20 seconds. The same task would take a classical supercomputer approximately 2 hours to complete. This massive speed difference is what scientists call "quantum advantage."

💡 Simple Terms

It's like the difference between walking from Delhi to Mumbai (classical computer = 2 hours) and taking a flight (quantum computer = 20 seconds). The quantum approach doesn't just go faster — it takes a completely different path through "probability space" that classical computers cannot access.

4

✅ The Verification

The claim was independently reviewed and verified by the Quantum Advantage Tracker — a global body that monitors and validates quantum computing breakthroughs worldwide. The status was marked "ACTIVE" — confirming this is a real, reproducible advantage, not just a theoretical claim.

💡 Simple Terms

Think of the Quantum Advantage Tracker like the Guinness World Records for quantum computing. Anyone can CLAIM they broke a record, but Guinness verifies it independently. India just got its first verified entry — like winning an Olympic gold in quantum science.

The Speed Gap

Quantum vs Classical — Visualized

Winner 🏆 ⚛️
20s
IBM 120-Qubit Quantum Processor

Uses superposition & entanglement to explore all particle interaction paths simultaneously
VS
Classical 💻
2h
Classical Supercomputer

Must calculate each particle interaction path sequentially, one after another
360×
Faster than the best classical supercomputer for this specific task

Quantum Concepts

Explained Simply — No PhD Required

01 🪙

What is a Qubit?

"A two-state quantum-mechanical system that can exist in a superposition of both states simultaneously, represented as |ψ⟩ = α|0⟩ + β|1⟩ where |α|² + |β|² = 1."
A regular computer bit is like a light switch — either ON (1) or OFF (0). A qubit is like a dimmer switch that can be ON, OFF, and every brightness level in between — all at the same time. With 120 qubits, you have 2¹²⁰ possible states existing simultaneously. That's more than the number of atoms in the observable universe.
02 🔗

What is Entanglement?

"A quantum phenomenon where pairs or groups of particles are generated, interact, or share spatial proximity in ways such that the quantum state of each particle cannot be described independently."
Imagine two magical dice that are "linked." No matter how far apart you roll them — one in Delhi, one on Mars — they always show the same number. Change one, the other changes instantly. Einstein called this "spooky action at a distance." Quantum computers use this to coordinate calculations across qubits faster than light could travel.
03 🌊

What is Superposition?

"A fundamental principle of quantum mechanics that states a physical system exists partly in all its particular theoretically possible states simultaneously; but when measured, it gives a result corresponding to only one of the possible configurations."
A classical computer is like reading one book at a time. A quantum computer in superposition is like reading every book in a library simultaneously — and understanding them all. When you "measure" (look at the answer), the quantum state "collapses" to the most probable correct answer. It's probability made physical.
04 🏆

What is Quantum Advantage?

"The demonstration that a quantum computer can solve a specific computational problem significantly faster than any known classical algorithm running on classical hardware, with practical relevance."
Quantum Advantage means the quantum computer isn't just different — it's demonstrably better at a real task. It's not about theoretical speed; it's about solving a problem that matters (like simulating particles for drug discovery or materials science) in a way that saves hours, days, or even years of computation.
05 🔒

Why Does This Matter for PQC?

"Post-quantum cryptography addresses the vulnerability of current public-key cryptosystems to quantum attacks using Shor's algorithm, necessitating lattice-based, hash-based, code-based, or multivariate polynomial cryptographic schemes."
The same quantum power that simulates particles can also break today's encryption (like RSA) using Shor's algorithm. This breakthrough proves quantum computers are becoming real threats to cybersecurity. That's exactly why IQRO researches Post-Quantum Cryptography — developing new "quantum-proof" locks before the old ones break.
06 🇮🇳

Why Is This Big for India?

"India's National Quantum Mission aims to develop indigenous quantum technologies across computing, communications, sensing, and materials, with a budget of ₹6,000 crore over 2023-2030."
India is investing ₹6,000 crore in quantum tech. This verified result proves Indian researchers can compete at the highest global level. It's like India's first satellite launch — it proves we belong in the quantum race. For students, it means India will need thousands of quantum-ready engineers, cryptographers, and physicists in the next decade.

Verified & Active

Independently Confirmed by Quantum Advantage Tracker

Quantum Advantage
ACTIVE
VERIFIED ✅

The Quantum Advantage Tracker is an independent global registry that reviews and validates claims of quantum computational advantage. Unlike self-reported achievements, entries on this tracker undergo rigorous peer review to ensure the quantum speedup is real, reproducible, and not due to unfair comparisons (like comparing a quantum computer to a slow classical algorithm).

India's entry is now LIVE and ACTIVE — placing BITS Pilani alongside institutions like Google (Sycamore), IBM, and Chinese Academy of Sciences in the verified quantum advantage hall of fame.

The Minds Behind It

BITS Pilani — Pioneering India's Quantum Future

👩‍🔬

Dr. Indrakshi Raychowdhury

Lead Researcher · BITS Pilani

Leading a team at the Birla Institute of Technology and Science, Pilani, Dr. Raychowdhury spearheaded the simulation experiment that has now been globally verified. Her work demonstrates India's growing capability in practical quantum computing applications — moving from theory to verified, reproducible results on real quantum hardware.

🇮🇳 BIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE, PILANI

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