Tag: Progress
Go MetaRail and Legends of Mitra Announce Strategic Partnership… | Live Breaking Cryptocurrency News | Global Crypto Press
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The refined quantum extremal surface prescription from the asymptotic equipartition property
Quantum 6, 655 (2022).
https://doi.org/10.22331/q-2022-02-16-655Information-theoretic ideas have provided numerous insights in the progress of fundamental physics, especially in our pursuit of quantum gravity. In particular, the holographic entanglement entropy is a very useful tool in studying AdS/CFT, and its efficacy is manifested in the recent black hole page curve calculation. On the other hand, the one-shot information-theoretic entropies, such as the smooth min/max-entropies, are less discussed in AdS/CFT. They are however more fundamental entropy measures from the quantum information perspective and should also play pivotal roles in holography. We combine the technical methods from both quantum information and quantum gravity to put this idea on firm grounds. In particular, we study the quantum extremal surface (QES) prescription that was recently revised to highlight the significance of one-shot entropies in characterizing the QES phase transition. Motivated by the asymptotic equipartition property (AEP), we derive the refined quantum extremal surface prescription for fixed-area states via a novel AEP replica trick, demonstrating the synergy between quantum information and quantum gravity. We further prove that, when restricted to pure bulk marginal states, such corrections do not occur for the higher Rényi entropies of a boundary subregion in fixed-area states, meaning they always have sharp QES transitions. Our path integral derivation suggests that the refinement applies beyond AdS/CFT, and we confirm it in a black hole toy model by showing that the Page curve, for a black hole in a superposition of two radiation stages, receives a large correction that is consistent with the refined QES prescription.
Atom Bank Receives £75 Million in Funding
Wise Doubles Down on Singapore as APAC Hub With Plans to Hire 150 Roles
Wise, an online money transfer service, announced that it is further deepening its presence in Singapore with plans to hire 150 roles over the year in the country. The Singapore
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America’s Forgotten Seven Million — Unlocking Financial Freedom Through Bitcoin
Bugcrowd Announces Real-Time Customer Visibility and Improved Crowd-matching For Penetration Testing as a Service Solution
Indonesian Insurtech PasarPolis Names Former Amazon Exec as CTO
Indonesian insurtech firm PasarPolis announced the appointment of Rajesh Kumar as its Chief Technology Officer (CTO). PasarPolis said that Rajesh’s extensive experience with nearly two decades in the technology sector
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How Fintechs Can Use Smart Data Fabrics to Achieve Record Growth
Despite record growth, fintechs and traditional financial services institutions, face a range of technical challenges which if not addressed could stall industry progress.
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