Illustration of two different interpretations of the same physical scenario, viewed from different perspectives (IMAGE)

Kyushu University

Illustration of two different interpretations of the same physical scenario, viewed from different perspectives

Caption

A quantum superposition of gravitational fields or spacetimes (top) and a “test” particle in a quantum superposition of locations in an ordinary gravitational field (bottom). The gravitational field could be that produced by a star, black hole, or even another quantum “source” particle.

Credit

Joshua Foo/Kyushu University

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