Gravity is part of our everyday life. Still, the gravitational force remains mysterious: to this day we do not understand whether its ultimate nature is geometrical, as Einstein envisaged, or governed by the laws of quantum mechanics.

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New research proposes an experiment to reveal the quantumness of gravity without generating entanglement. The study explores the nature of gravity and its fundamental relationship with quantum mechanics. The researchers analyze the potential for quantum superposition in the gravitational field and present a method using massive harmonic oscillators to test the quantumness of gravity.

New work reveals the 'quantumness' of gravity