English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We develop a Hamiltonian formalism which can be used to discuss the physicsof a massless scalar field in a gravitational background of a Schwarzschildblack hole. Using this formalism we show that the time evolution of the systemis unitary and yet all known results such as the existence of Hawking radiationcan be readily understood. We then point out that the Hamiltonian formalismleads to interesting observations about black hole entropy and the informationparadox.Comment: 45 pages, revte

ON THE EVOLUTION OF A MASSLESS SCALAR FIELD IN A SCHWARZSCHILD BACKGROUND: A NEW LOOK AT HAWKING RADIATION AND THE INFORMATION PARADOX