We discuss a recent proposal that the Euclidean gravity approach to quantum gravity is correct if and only if the theory is holographic, providing several examples and general arguments to support the conjecture. This provides a natural mechanism for the low-energy gravitational effective field theory to access a host of deep ultraviolet properties, like the Bekenstein–Hawking entropy of black holes, the unitarity of black hole evaporation, and the lack of exact global symmetries.

中文翻译：

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欧几里得重力和全息术

我们讨论了一个最近的提议，即欧几里得引力方法对量子引力是正确的，当且仅当该理论是全息的，并提供了几个例子和一般论据来支持这个猜想。这为低能引力有效场论提供了一种自然机制，以获取许多深紫外特性，例如黑洞的 Bekenstein-Hawking 熵、黑洞蒸发的单一性以及缺乏精确的全局对称性。