Wave-particle duality in music

Light can be seen as both a stream of particles called photons and as an electromagnetic wave. This dual nature of light is known as wave-particle duality, and it is a fundamental concept in quantum mechanics.

Quantum music concept introduced

In 2024, Jean-Claude Heudin introduced the idea of "quantum note," or qunote, which applies quantum mechanics principles to music. This concept draws parallels between qubits in quantum computing and musical notes.

Qunotes and quantum principles

A qunote is similar to a qubit but uses musical notes instead of binary information. Unlike classical notes that have a fixed pitch, a qunote exists in a superposition of multiple possible pitches until it is "measured" during performance.

Superposition and musical interpretation

The quantum state of a qunote is a combination of several possible notes, each with its own probability. When the music is performed, the qunote collapses into a specific note, leading to multiple possible interpretations of the same score.

Entanglement in quantum music

Entanglement is a quantum phenomenon where particles are linked, so the state of one affects the other. In quantum music, entangled qunotes create correlations between notes, allowing for unique harmonic arrangements when measured.

Practical application and listening

Jean-Claude Heudin uses algorithms and a photonic quantum processor prototype to create quantum music. Examples of this experimental music can be found on his YouTube channel, offering a way to explore quantum mechanics through sound.