Making the gravitational path integral more Lorentzian or Life beyond Liouville gravity

Loll, R; Ambjørn, J; Anagnostopoulos, K

dc.contributor.author	Loll, R	en
dc.contributor.author	Ambjørn, J	en
dc.contributor.author	Anagnostopoulos, K	en
dc.date.accessioned	2014-03-01T01:48:03Z
dc.date.available	2014-03-01T01:48:03Z
dc.date.issued	1999	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25398
dc.subject	Path Integral	en
dc.subject	Quantum Gravity	en
dc.subject	Space Time	en
dc.title	Making the gravitational path integral more Lorentzian or Life beyond Liouville gravity	en
heal.type	journalArticle	en
heal.publicationDate	1999	en
heal.abstract	al triangulations, a recent variantof the Regge method. Unfortunately, all investigationsso far have concentrated on path integralsfor unphysical space-time metrics of Euclidean signature. Unlike for some fixed backgroundmetrics, there is no prescription of howto &quot;Wick-rotate&quot; a general Euclidean metric toLorentzian signature.On the other hand, a lot of progress has beenmade in the last ten years in an analytic formulationof canonical	en