Discover and read the best of Twitter Threads about #photons

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Facc. una premes. per capire di cosa parl. entaglment = intreccio, di cosa ?
Di onde, la materia nel suo microcosm vibra..
#entaglment #intreccio #entaglmentQuantistico #fisica, #fisicaQuantistica #fisicaNucleare #particelle, #fotoni #photons #elettroni #electrons
foto by rete
.. come vibra ?
Si vibra o non sta ferma e questa onda invisibile da poter essere vista é tanto più stretta tra un picco e l'altro, quanto più viene sottop. al calore che la eccita facend. vibrare più velocem, con il freddo invec si allunga e tende ad appiattir..
foto Gerd Altman
.. in vicinanza dello 0 assoluto -273,15° C quasi si ferma !
questi vari stati d'onda conferiscono alla materia , anche alle particelle un loro stato , prendiamo un fotone, massa prossima allo 0 o nulla , un fotone é una particella di tipo Bosone , che nell'elettromagn..
Read 11 tweets
[#Infographie] Tableau du modèle standard de la physique des particules #LaMethSci Image
Les travaux publiés dans Science le 10 avril > Fractional statistics in anyon collisions #LaMethSci
[#Podcast] 2018 > Excitons : un potentiel très excitant un #LaMethSci à (ré)écouter via @franceculture ! Image
Read 26 tweets
1/ Here is a proposal of how to distinguish between different, supposedly "equivalent," #orthogonal mixtures of photons. In this case, it is R + L mix of circular, to be distinguished from mixtures of linear #polarization.
#Physics #QuantumMechanics #ThoughtExperiment
I am leaving aside right here whether it could lead to #FTL communication (#SuperluminalSignalling), and focusing on the bare being able to make the distinction. Impractical - but of major theoretical importance.
#ProperMixtures #MeasurementProblem
We use a compound detector D for this purpose. Its first element is a quarter-wave plate with horizontal fast axis, that is rotationally free within a small angle (to allow measurement of changes in #angularmomentum of roughly a few hundred ħ, which is still very tiny.)
Read 14 tweets

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