MadSci Network: Physics
Query:

Subject: Can wave/particle duality be avoided?

Date: Tue Oct 23 22:46:37 2001
Posted by Paul Trueman
Grade level: undergrad School: No school entered.
City: St. Austell State/Province: Cornwall Country: United Kingdom
Area of science: Physics
ID: 1003891597.Ph
Message:

Suppose I bring the two guitar strings into contact so that they cross each 
other at a single point.  At that point energy is transferred from the 
vibrating string to the stationary string and the latter begins to vibrate.  
Thus an observable event may be deemed to have taken place: the observable 
transfer of energy at the particular location where the guitar strings 
touched.  But before they touched, the energy of the wave on the first guitar 
string was diffused at all locations along that string and was unobserved.  
Would this be a good analogy for the double slits experiment as follows:  the 
point of transfer of energy between the two guitar strings represents the 
materialisation of a photon at one or other of the double slits.  An observable 
event takes place.  But when the photon isn't observed at one or other of the 
two slits, its unobserved energy remains diffused across a wave front that 
incorporates all possible routes between the source and the screen: in the same 
way that the energy in the guitar string remains diffused along its length 
until the moment it touches the other string, whereupon the energy in the wave 
becomes manifest as an observable event.  Thus instead of reverting to the 
notion of the wave becoming a particle, can't we view this as an observable 
energy transfer event analogous to the transfer of vibration energy between 
guitar strings?


Re: Can wave/particle duality be avoided?

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