Question

Q2a) compute the concurrence and entanglement of formation for the state 7/12 0 3/8 1/16 Vie o 0 7/16 o a ?! Fund the Pauli representation of Sin²e Sino Coso 3= 27 e sino Coso Cos²o e-29

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Answer 1

And 2 (a) // 0 0 3/8 11 У. 0 0 0 1/16 0 ma 0 0 (7/16 Two eigenvalues are: 1/16 and 1/6 Other two ! %- 3/ 7/16-2 318 2 20. (i-1) colo :2= 1 mlo 13 = + 16 07 8 16 db on Eigen values are! 9, = 13 > 72 = 73=74 16 16 oo concurrence, c(8) = man 10, 7, -22-23-24) 3 a man 10, 13 2 c() = 16 (o,) . ..((s) 5 8 aus New, १ tra (p) B 18., Pis to 133, 333 121 123 491 18.,tfsz 3,24834 la suite h, thus het huy Su sus tor Sau for fuz S44) ½ 0 6 . Eigenvalues of fg = 2 and / Ya :. Entanglement, (sch mit co-efficients) -14 and Žans CS Scanned with CamScanner

1b) Sin20 eit 8 = Sino Coso le sino coso Cos²0 -it е Quis o 0 lorurg d ) il O COSO e Sinzo o -id quis 0 e + sino it 0 cos²0 o Now, ohuis 06) 4 : 0)*/..) O e-10 0 & <(::+4(: -1) - = o less rising cosa + ising 0 0 Using eq. O, >) Ca caso do sind. atb= Sinzo 2 a-b= caso 3 a: 1 / 1 . ; b = -1/2 casal info36: 9)- wes3) + { she wrote: ( :) 3.8 = 1 + A olswhere, = sinao (caso if + sindi) f (. sinad sino lo + A 2 1 / 2 64 20 Y = 2*2 Identity 8 = oni poy ito wahrix.a CS Scanned with CamScanner