The quantum superposition between dwarf stars could be possible.

The binary star systems. There are two white dwarfs or neutron stars. That can use to research quantum entanglements between large quantum systems. But what is the limit for that superposition? 

Can white dwarfs turn to superposition? Or can only black holes make that phenomenon? The requirement for the information flow in quantum entanglement is that another side of the quantum entanglement is at the upper state. 

The binary star system with two white dwarfs that orbit each other causes one interesting theory. White dwarfs are mainly carbon. And their gravitation is very strong. That causes an effect where white dwarfs are pulling material to their core. There is a forming plague on the surface of those white dwarfs. 

And then that plague causes a fusion reaction and causes nova eruption. If there is another white dwarf near that erupting white dwarf, that thing causes the radiation oscillation in the other white dwarf. And that means there is the possibility that the magnetic fields of those white dwarfs are connecting. 

That causes plasma flow between those stars. That plasma flow can harvest energy from the universe. And if those stars would have enough high energy levels that plasma can turn to quantum entanglement and even superposition those objects. 

The thing is that two chemically identical stars can start to resonate with each other. If we are thinking about binary star systems with neutron stars or black holes those objects can form quantum entanglements between them. 

But the requirement for superposition is. The dwarf star's structure elementary particles' resonation (or oscillation) turns identical. Maybe the energy level of the neutron stars is not high enough for making that thing true. 

The quark stars where is only quarks could make superpositioned quantum entanglement between them. Unlike neutron stars, in quark stars, quarks are freely in the star. And if that thing is real there is the chance to research quantum entanglements between large particle groups or quantum systems. 

Of course, quantum entanglement is possible between black holes. But some other objects like white dwarfs or neutron stars may allow observing the oscillation of those particles. And it gives new information for developing quantum computing. 

https://www.sciencealert.com/remnants-of-ancient-earth-like-world-seen-being-eaten-by-a-star

https://en.wikipedia.org/wiki/White_dwarf

https://en.wikipedia.org/wiki/Nova

https://en.wikipedia.org/wiki/Quark_star