Tailoring photonic entanglement in high-dimensional Hilbert spaces

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 69, Issue 5 A, 2004, Pages

  De Riedmatten, Hugues ^a   Marcikic, Ivan ^a   Scarani, Valerio ^a   Tittel, Wolfgang ^a   Zbinden, Hugo ^a   Gisin, Nicolas ^a  

^a UNIVERSITY OF GENEVA   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

COHERENT LIGHT; FUNCTIONS; INTERFEROMETERS; LASER MODE LOCKING; LASER PULSES; LIGHT INTERFERENCE; LIGHT MODULATORS; NETWORK PROTOCOLS; PROBABILITY; QUANTUM EFFICIENCY; QUANTUM THEORY; SPURIOUS SIGNAL NOISE; VACUUM; WAVELENGTH DIVISION MULTIPLEXING;

BELL STATES; HILBERT SPACES; PHOTONIC ENTANGLEMENT; SPONTANEOUS PARAMETRIC DOWN-CONVERSION (SPDC);

PHOTONS;

EID: 3042773848     PISSN: 10502947     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevA.69.050304     Document Type: Article

References (21)

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16. This is an advantage compared to the multiphoton schemes since the detection efficiency remains constant for any dimension.
17. The time difference between two pump pulses can be determined very precisely by measuring the repetition rate of the laser. This allows us to determine the path length difference of the interferometer with a precision better than the pump coherence length (i.e., a few tens of micrometers).
18. Each photon can follow two paths [19]: long (L) or short (5) arm of the interferometer, so there are 4 different paths for the pair. Only two of them ([S,S] and [L,L]) lead to a coincident detection.
19. 2: if a given "path" leads to several coincident detection, we add the probabilities for each process.
20. 2 = 16.
21. I. Marcikic et al., Phys. Rev. A 66, 062308 (2002).