du.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Gravitational self-localization for spherical masses
Högskolan Dalarna, Akademin Industri och samhälle, Fysik.ORCID-id: 0000-0002-8049-2425
2012 (engelsk)Inngår i: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 86, nr 5, artikkel-id 052105Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this work, I consider the center-of-mass wave function for a homogenous sphere under the influence of the self-interaction due to Newtonian gravity. I solve for the ground state numerically and calculate the average radius as a measure of its size. For small masses, M≲10−17 kg, the radial size is independent of density, and the ground state extends beyond the extent of the sphere. For masses larger than this, the ground state is contained within the sphere and to a good approximation given by the solution for an effective radial harmonic-oscillator potential. This work thus determines the limits of applicability of the point-mass Newton Schrödinger equations for spherical masses. In addition, I calculate the fringe visibility for matter-wave interferometry and find that in the low-mass case, interferometry can in principle be performed, whereas for the latter case, it becomes impossible. Based on this, I discuss this transition as a possible boundary for the quantum-classical crossover, independent of the usually evoked environmental decoherence. The two regimes meet at sphere sizes R≈10−7 m, and the density of the material causes only minor variations in this value.

sted, utgiver, år, opplag, sider
American Physical Society , 2012. Vol. 86, nr 5, artikkel-id 052105
HSV kategori
Identifikatorer
URN: urn:nbn:se:du-11222DOI: 10.1103/PhysRevA.86.052105ISI: 000310847700002OAI: oai:DiVA.org:du-11222DiVA, id: diva2:566583
Tilgjengelig fra: 2012-11-08 Laget: 2012-11-08 Sist oppdatert: 2017-12-07bibliografisk kontrollert

Open Access i DiVA

fulltext(629 kB)94 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 629 kBChecksum SHA-512
d57ead1f75b3383eb1d539b8a7805653935ca731ae267a23daf7ff2cf561edc58e55ae0c4a6b58f6b508ed8e8acb9bdedee19ae1617dc53516a35cac0f74cc48
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Jääskeläinen, Markku

Søk i DiVA

Av forfatter/redaktør
Jääskeläinen, Markku
Av organisasjonen
I samme tidsskrift
Physical Review A. Atomic, Molecular, and Optical Physics

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 94 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 729 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf