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Does gravity come from quantum information?


Reconciling quantum mechanics with gravity has long posed a challenge for physicists. Recent developments have seen concepts originally developed in quantum information theory, such as entanglement and quantum error correction, come to play a fundamental role in understanding quantum gravity.

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Fig. 1: Schematic illustration of holographic duality and RT formula.
Fig. 2: Analogy between accessing bulk qubit from the boundary and quantum error correction.
Fig. 3: Tensor network state and the encoded bulk qubit.
Fig. 4: The relation between entanglement, bulk geometry and energy–momentum of the boundary.
Fig. 5: The scattering between two particles, a and b, near the black hole horizon.


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This work is supported by the National Science Foundation under grant no. 1720504.

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Correspondence to Xiao-Liang Qi.

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Qi, XL. Does gravity come from quantum information?. Nature Phys 14, 984–987 (2018).

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