>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>On Behalf Of David VanHorn
>Sent: 22 January 2007 18:29
>To: Microcontroller discussion list - Public.
>Subject: Re: [OT] Image stored in a single photon?
>
>
>>
>>
>> I've almost certainly misunderstood this quote, but how can a mask 
>> possibly cause a single photon to cast a shadow?  A shadow 
>is just the 
>> contrast between high and low light areas, so with a single 
>photon how 
>> can the shape of this area be defined?
>
>
>Sounds like a relative of the two-slit experiment, in some ways.

Would you not need more than one photon to create interference?

Regards

Mike

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