(a) for the case of two qubits, briefly explain the main difference between product states and entangled states. provide one example of each. (b) show that the identity between spin angular momentum operators s+s- = s2- s2 ± hs, holds. data: s s tisy, [se, sy] = ihs2, [sy, s2] = ihs, [s2, s = ihsy. (c) an s = 1/2 particle at t =0 is prepared in the following state x with respect to the eigen-spinors of s2: x= a 2 (e)r= where a is a normalisation constant. imagine many copies of the state x are prepared and measured. describe the possible outcomes of measurements of s2 and their probabilities (d) show that for a normalised trial state, vtrial), the ground state energy, eg. s., of a hamiltonian, h, is bounded as (trial|h\btrial). hence, prove that the first order perturbation theory estimate of the eg. s. ground state energy never under-estimates the true ground state energy.
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Physics, 22.06.2019 13:30, Albertrami9019
Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.
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Physics, 22.06.2019 18:30, raywalker3410
Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90
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(a) for the case of two qubits, briefly explain the main difference between product states and entan...
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