In order to change density, \(TiO_2\) must be very fine nano-particles. In one other variant,
the copper conductor is replaced with a bare optical fiber or a crystal coil. What is a crystal coil? Possibly also glass, but crystalline. Provided that the Sun's spectrum also contains photons that eject other types of basic particles, including \(g^{-}\) and \(p^{+}\). In this scheme of things photons are just basic particles accelerated to light speed.
Since, good conductor of electricity is often good conductor of heat, both \(e^{-}\) and \(T^{+}\) particles are collected by a copper coil. We need to separate the two, so that the torus does not over heat.
Then there remain \(T^{-}\) and \(g^{+}\)...
\(T^{-}\) when embedded imbue invisibility. The charges are immobile. What would collect and conduct \(T^{-}\)?
\(g^{+}\) generate lifts. They embed into carbon fibers, but are also immobile.
To use an analogue to electrical conduction where \(p^{+}\) paired orbits with \(e^{-}\) particles captured in the weak fields conducts \(e^{-}\) and \(T^{+}\) particles;
\(g^{+}\) paired orbits with \(g^{-}\) particles captured in the weak fields will conduct \(g^{-}\) particles and \(p^{+}\) particles. And \(T^{+}\) paired orbits with \(T^{-}\) particles captured in the weak fields will conduct \(T^{-}\) particles and \(g^{+}\).
The first are metals, the second are crystals, and the last....? What have \(T^{+}\) paired orbits as its outermost nucleus layer? They are like elements being stripped of its outermost \(p^{+}\) paired orbits; bare nucleus, but stable. These could be the noble gases.
If so, a channel of noble gas, Neon \(Ne\) within the \(TiO_2\) suspension, can serve as a collector for these charges.
Have a nice day.