Presentation Flashcards
What is an entangled state
If two states do not factorise it is in a superposition
Double slit experiment
Is a which way experiment which is unable to determine the path taken by the photon
Taking a measurement
Causes the wavefunction to collapse a unique feature if quantum mechanics
Einstein podolsky and Rosen
Believed that this description of quantum mechanics was incomplete
SPDC
A non linear optical effect that converts a singular photon into a pair of lower energy photons
The overlapping of the cones
Generates entangled pairs
The errors in the coincidence counts arise from
The photon shot noise sqrt(Nph)
A digital micro mirror device
Modulates the light field using patterns stored in a computer
The patterns
Contain the spatial correlations and when weighted and summed can be used to reconstruct the target image
Hadamard matrix
Consists of elements either +1 or -1 with an orthogonal basis
SSIM
l - luminance comparison function
c - contrast comparison function
d - structure comparison function
SSIM of zero
Indicates no correlation whereas 1 indicates the two images are equivalent
The PSNR
The higher the PSNR the better the image quality
Why is the PSNR misleading
It has low complexity and has poor correlation with subjective analysis
Dwell time
Interval between recording pixels
