Quantum Echoes: A Revolutionary Method to Store Information as Sound Waves
scitechdaily.com
scitechdaily.com
> Abstract: In single crystals, the suppression of intrinsic loss channels at low temperatures leads to exceptionally long mechanical lifetimes. Quantum electrical control of such long-lived mechanical oscillators would enable the development of phononic memory elements, sensors and transducers. The integration of piezoelectric materials is one approach to introducing electrical control, but the challenges of combining heterogeneous materials lead to severely limited phonon lifetimes. Here we present a non-piezoelectric silicon electromechanical system capable of operating in the gigahertz frequency band. Relying on a driving scheme based on electrostatic fields and the kinetic inductance effect in disordered superconductors, we demonstrate a parametrically enhanced electromechanical coupling of g/2π = 1.1 MHz, sufficient to enter the strong-coupling regime with a cooperativity of C=1,200 . In our best devices, we measure mechanical quality factors approaching Q ≈ 107, measured at low-phonon numbers and millikelvin temperatures. Despite using strong electrostatic fields, we find the cavity mechanics system in the quantum ground state, verified by thermometry measurements. Simultaneously achieving ground-state operation, long mechanical lifetimes and strong coupling sets the stage for employing silicon electromechanical devices in hybrid quantum systems and as a tool for studying the origins of acoustic loss in the quantum regime.
> If quantum information is never destroyed – and classical information is quantum information without the complex term i – perhaps our brain states are already preserved in the universe; like reflections in water droplets in the quantum foam.
> Lagrangian points, non-intersecting paths through accretion discs, and microscopic black holes all preserve data - modulated energy; information - for some time before reversible or unreversible transformation.
How do phonons interact with such phenomena?
> Perhaps Superfluid quantum gravity can afford insight into the interior topology of black holes and other quantum foam phenomena?
Isn't diffraction of photons in a crystal also enough to recreate a qubit / wave function / histogram?
I must be failing to comprehend some limit to applied holography; holographic data storage?