Teleportation Game: Quantum Teleportation in Multi-Agent Systems for Interactive Music

Research Overview

This paper explores the intersection of quantum computing and interactive music, proposing a framework where musical agents communicate via quantum teleportation. Rather than attempting to eliminate the noise and decoherence inherent in Noisy Intermediate-Scale Quantum (NISQ) devices, the authors embrace these limitations as creative affordances. They frame agent communication as "quantum whispers," where the inherent imperfections in state transfer mimic the ambiguous, transformative nature of free jazz improvisation.

The system utilizes Single Qubit Probability Amplitude Modulation (SQPAM) and Quantum Phase Estimation (QPE) to encode melodic and rhythmic features extracted from live audio into quantum states. These agents are structured within a quantum circuit where teleportation protocols allow one agent to influence the internal state of another. By using Librosa for feature extraction—such as contour energy, spectral centroid, and onset intensity—the researchers map real-time human performance parameters onto the rotation gates of the quantum circuit. The resulting quantum measurements are then decoded back into musical sequences, allowing for a continuum between imitation and divergence.

Findings and Implications

The authors demonstrate the system using both quantum simulators and real IBM quantum hardware. They find that the teleportation mechanism enables a unique form of distributed, agent-based musical interaction that is fundamentally different from classical networked performance. By treating the hardware's stochastic nature as a source of musical "whispers," the system achieves a level of organic, unpredictable interaction that is difficult to replicate in deterministic digital systems. This work serves as a foundational step toward future distributed musical ensembles connected via the Quantum Internet.