In a Single Quantum State

Bose-Einstein Condensate

What happens when particles lose their individuality and merge into a single quantum being? This is the mystery of the Bose–Einstein condensate — a state of matter predicted by Einstein and Bose a century ago, first realized with ultracold atoms in the 1990s, and later extended to photons, exciton–polaritons, and other exotic systems.

In this book, Boris Kriger guides the listener through the history of this extraordinary discovery — from a letter written in Calcutta to Einstein, to the Nobel-winning experiments that cooled atoms to the edge of absolute zero. Along the way, he reveals how the condensate is not only a scientific triumph but also a profound metaphor for unity, coherence, and the fragile beauty of existence.

Combining clarity of explanation with philosophical reflection, In a Single Quantum State brings together science and meaning, showing how quantum matter speaks to the human condition.

Quantum physics, Bose–Einstein condensate, unity, mystery, atoms, photons, future

©2025 Boris Kriger (P)2025 Boris Kriger