Levitated Quantum Oscillator Networks for Macroscopic Entanglement

Inspired by Gutierrez Latorre et al.'s superconducting levitation traps and Chegnizadeh et al.'s collective quantum effects in mechanical oscillators, this research proposes scaling up to networks of levitated superconducting particles that can become entangled over macroscopic distances. While current levitation experiments focus on single particles, we could design interconnected trap architectures where multiple levitated superconducting rings or spheres couple through shared magnetic flux modes. This would extend collective quantum phenomena beyond fixed mechanical oscillators to truly macroscopic objects with spatial freedom. The key innovation is using the levitation degree of freedom itself as the quantum mechanical variable, rather than just internal states. This could push the boundaries of macroscopic quantum superpositions while providing a platform for testing quantum gravity effects. The approach leverages recent advances in superconducting trap modeling while introducing network-level quantum control strategies from circuit QED.

References:

1. Quantum collective motion of macroscopic mechanical oscillators.. Mahdi Chegnizadeh, M. Scigliuzzo, Amir Youssefi, Shingo Kono, Evgenii Guzovskii, T. J. Kippenberg (2024). Science.
2. Modeling and fabrication of chip-based superconducting traps for levitation of micrometer-sized superconducting particles. Martí Gutierrez Latorre, J. Hofer, M. Rudolph, W. Wieczorek (2020).