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UID:DSC-21733
DTSTART;TZID=Europe/Berlin:20250324T163000
SEQUENCE:1742798352
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20250324T173000
URL:https://www.dresden-science-calendar.de/calendar/de/detail/21733
LOCATION:MPI-PKS\, Nöthnitzer Straße 3801187 Dresden
SUMMARY:Berry: Quantum trajectories\, quantum potential\, superoscillations
 : Madelung\, de Broglie\, Newton
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. Michael Berry\nInstitute of Speaker: University 
 of Bristol\nTopics:\nPhysik\n Location:\n  Name: MPI-PKS ()\n  Street: Nö
 thnitzer Straße 38\n  City: 01187 Dresden\n  Phone: + 49 (0)351 871 0\n  
 Fax: \nDescription: The wave counterparts of classical particle paths and 
 geometrical-optics rays are families of trajectories – patterns of strea
 mlines – modified by a ‘quantum potential’. Wave interference corres
 ponds to undulations in these trajectories\, as envisaged by Isaac Newton.
  Streamline patterns are dominated by singularities at wave vortices and s
 tagnation points. The local momentum (phase gradient of the wave)\, can ex
 ceed the values classically allowed. Regions of such ‘superoscillations
 ’ are bounded by manifolds where the quantum potential is zero. Some cla
 ssical ‘curl forces’ – not the gradient of a potential – are assoc
 iated with Hamiltonians (dispersion relations) anisotropic in momentum com
 ponents\, with unusual group velocity field singularities\, and eigenfunct
 ions with unfamiliar classical counterparts. For simple dispersion relatio
 ns\, some singularities coincide\; for general cases\, they are separate.
DTSTAMP:20260508T183211Z
CREATED:20250211T063532Z
LAST-MODIFIED:20250324T063912Z
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