The scene
Quantum Bazaar is a small temple-town lane with a chai stall, a sweet shop, a flower seller, a brass-coin maker, and a tiny laboratory hidden under the chai stall. The story unfolds across one afternoon, evening and night.
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Quanta and the Two-State Coin.
A first picture book about quantum, for ages 5 to 9.
A small brass coin does not pick heads or tails until Quanta looks at it. A picture book about the first idea in quantum mechanics, set in a fictional Indian temple-town bazaar.
Published by RSL Quantum Press, an imprint of RSL Quantum Private Limited.
What this book is about
Quanta is eight years old. She lives in a fictional Indian temple-town bazaar called Quantum Bazaar with a family of robots. Her grandmother, Dadi-Bot, runs a small cryogenic lab beneath a chai stall. In this first book, Quanta meets a small brass coin that does not pick heads or tails until she looks at it. That is the simplest idea in quantum mechanics, and it is the door to every other idea in the series.
Buy the book
Amazon.com Amazon.co.uk Kindle (Amazon.in) Paperback (Amazon.in)Available now on Amazon.com and Amazon.co.uk. Amazon.in links open the search results until the India listing finishes its review.
© 2026 RSL Quantum Private Limited. All rights reserved. This book, its characters, art and text are licensed property of RSL Quantum Private Limited and may not be reproduced, redistributed, resold, used to train machine-learning models, or used for any commercial purpose without prior written permission. Trademarks: RSL Quantum, Quantum Bazaar, Dadi-Bot, Dada-Bot, Auntie Supi, Auntie Dhooli, Q0, Q1, Schro.
Read the flipbook
The flipbook is the same content as the print PDF, all 44 pages, delivered as a page-turn reader. Drag a corner to turn the page, click the arrows, or use the arrow keys. A soft paper rustle plays on each flip; you can mute it below.
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Open the print PDF
The flipbook above shows the cover and the 24 story spreads. The print PDF below is the full 44-page build, including the title page, colophon, meet-the-family page, glossary, parent notes and try-this-at-home pages.
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Inside the book
Who it is for
Ages five to nine. Read-aloud for younger children. Independent reading from age seven. The English text sits at a Grade 2 reading age, with short sentences and a familiar refrain.
What your child will learn
- A qubit, like a magic coin, can be both zero and one at the same time, until you look.
- Asking the question is what makes the answer appear. Scientists call this measurement.
- After you look once and the coin became a one, looking again gives you the same one.
- If you set up a fresh coin, it is fresh again. It can be either thing once more.
- This is not a failure of the world. It is how the world actually works.
Meet the family
The recurring cast of the Quantum Bazaar Series.
Quanta
Main character, age eight. Curious about everything.
Arjo
Her cousin. Loud, fast, always wants to try things himself.
Dadi-Bot
Grandmother robot. Retired scientist. Runs a tiny cryogenic lab under the chai stall.
Dada-Bot
Grandfather robot. Runs the chai stall above the lab.
Auntie Supi
Aunt in Mylapore, Chennai. Andhra avakaya, Tamil maavadu pickles.
Auntie Dhooli
The aunt who sweeps. She is decoherence in person.
Q0
The sleepy qubit. Likes to rest at zero. Dome head, brass-coin antenna.
Q1
The loud qubit. Likes to jump to one. Brighter face plate than Q0.
Schro
A temple cat. She sleeps on the lab bench. She is always fine.
Fun facts about quantum science
Strange and true. Pick a tile to flip it.
Fun facts about quantum computers
Real machines, not magic.
Indian quantum milestones
A short, public-record timeline.
- 1928The Raman Effect. C. V. Raman discovers how light scatters off molecules and changes colour. India\u2019s first Nobel Prize in Physics, 1930.
- 1924Bose statistics. Satyendra Nath Bose works out the statistics of light quanta. Einstein extends it. An entire class of particles, "bosons," is named after him.
- 2018QuEST. The Government of India launches the Quantum-Enabled Science and Technology programme through DST to seed a national research base.
- 2020National Mission announced. The Union Budget proposes a National Mission on Quantum Technologies and Applications.
- 2022India\u2019s first quantum communication link. A free-space QKD demonstration over 300 m between two DRDO labs in Hyderabad.
- 2023National Quantum Mission approved. A multi-year mission with hubs across the country covering computing, communication, sensing and materials.
- 2024Quantum hubs operational. Thematic hubs at IISc, IIT Madras, IIT Bombay and IIT Delhi begin coordinated work under the NQM.
Quick quiz
Eight short questions from the book. Tap an answer for instant feedback.
1. What is special about the brass coin Quanta meets?
2. What do scientists call "looking at" a quantum coin?
3. After Quanta looks once and the coin became a one, what does she see if she looks again right away?
4. Q0 likes to rest in which state?
5. Why does Dadi-Bot keep her lab so cold?
6. Auntie Dhooli sweeps the bazaar. In the story she stands for which idea?
7. What is the real name for the magic coin in a quantum computer?
8. Schro the cat sleeps on the lab bench. In quantum stories she is famous because she shows that...
Help Quanta find the coin
Click squares from start (Q) to the coin (O). Move one step at a time, up, down, left or right. The dark squares are walls.
Click the Q square to begin.
The Quantum Bazaar Series
This is the first story. The series takes a curious reader from her first qubit to a real quantum computer, one short picture book at a time, across quantum science, quantum technology, quantum electronics, quantum computing, quantum architecture and quantum computers.
Reviewer notes
The flipbook renders the same PDF that is offered for download. Each PDF page is rendered with PDF.js in your browser and handed to StPageFlip for the page-turn animation. The reader only shows the cover and the 24 spreads; the meta pages (half-title, colophon, glossary) stay in the downloadable PDF. A short page-turn sound plays on each flip and can be muted from the control strip below the reader.
Licence and use
All rights reserved. This work is offered for commercial sale by RSL Quantum Press. Buying, viewing or being granted preview access does not transfer any rights of reproduction, redistribution, public display, derivative use, translation, adaptation, ML training, or commercial reuse. Educational and review quotations of up to 200 words with attribution are permitted under fair use. Bulk educational licensing, translation and rights enquiries: books@rslquantum.com.
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