Complexity is simple!

Autor: William Cottrell, Miguel Montero
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-30 (2018)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP02(2018)039
Popis: Abstract In this note we investigate the role of Lloyd’s computational bound in holographic complexity. Our goal is to translate the assumptions behind Lloyd’s proof into the bulk language. In particular, we discuss the distinction between orthogonalizing and ‘simple’ gates and argue that these notions are useful for diagnosing holographic complexity. We show that large black holes constructed from series circuits necessarily employ simple gates, and thus do not satisfy Lloyd’s assumptions. We also estimate the degree of parallel processing required in this case for elementary gates to orthogonalize. Finally, we show that for small black holes at fixed chemical potential, the orthogonalization condition is satisfied near the phase transition, supporting a possible argument for the Weak Gravity Conjecture first advocated in [1].
Databáze: Directory of Open Access Journals