11-07-2013 дата публикации
Номер: US20130176573A1
An interferometer for controlling the coalescence of a pair of photons, including: an optical source, which generates a first and a second pump pulse coherent with each other and shifted in time by a delay; and a first interferometric stage, which receives the first pump pulse and generates an antisymmetric state with two coalescent photons (1/√{square root over (2)}(|2,0−|0,2)). The interferometer also includes a second interferometric stage, which receives the second pump pulse and generates a symmetric state with two coalescent photons (1/√{square root over (2)}·(|2,0+|0,2)), the first and the second interferometric stages being connected in a manner such that the interferometer outputs a final state equal to a weighted sum of the antisymmetric state and of the symmetric state (1/√{square root over (2)}·(|2,0+|0,2)+e·1/√{square root over (2)}·(|2,0−|0,2)), the weights of the sum being a function of the delay. 1. An interferometer for controlling the coalescence of a pair of photons , comprising:an optical source configured to generate a first pump pulse and a second pump pulse coherent with each other and shifted in time by a delay;{'sub': 1', '2', '1', '2, 'img': [{'@id': 'CUSTOM-CHARACTER-00037', '@he': '3.56mm', '@wi': '0.68mm', '@file': 'US20130176573A1-20130711-P00002.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00038', '@he': '3.56mm', '@wi': '0.68mm', '@file': 'US20130176573A1-20130711-P00002.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}], 'first interferometric means configured to receive the first pump pulse and generate an antisymmetric state with two coalescent photons (1/√{square root over (2)}(|2,0−|0,2));'}{'sub': 1', '2', '1', '2, 'img': [{'@id': 'CUSTOM-CHARACTER-00039', '@he': '3.56mm', '@wi': '0.68mm', '@file': 'US20130176573A1-20130711-P00002.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': ' ...
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