Physics, 11.07.2019 00:10 brandiwingard
(a) briefly explain why we cannot find simultaneous eigenfunctions of lg, ly and lz. an electron in a hydrogen atom is in the n = 2 state. ignoring spin, write down the list of possible quantum numbers {n, l, m}. (b) for two qubits briefly explain, giving examples, the difference between a product state and an entangled state (c) consider a system of identical bosons and a system of identical fermions. briefly explain the difference in the ground state energy configurations. (d) consider two distinguishable particles in 1d which exist in single-particle (normalised) wave functions va(xı) and (x2). write down the combined two-particle wave function and show that the expectation value of the squared separation is given by: ((x1 -x2)2) = (x2)a + (x2)b - 2(x)a(x)b, where (x")a, b denotes an expectation value of r" with respect to va, b (e) the quantum logic gates x, z, h and cnot act on qubit states as follows: 1) -» |0) j0)-1), х: z 0) -> |0), |1) -» -|1) )(1/v2)(i0) - |1)) j0) (1/2)(0 00) |00), |01) -» |01), |10) - |11), 11)> |10) н: cnot where in the cnot gate above the control qubit state corresponds to the first entry in the ket, and the target qubit state corresponds to the second entry. at t = 0 a quantum computer comprising two qubits starts out in the state where both qubits are initialised in the |0) state, i. e. |v(0)) = |00). draw a circuit, carefully labelling the qubits and gates, which describes the following sequence of gates: h on qubit 1, x on qubit 1, z on qubit 2, cnot (control = qubit 1, target = qubit 2), z on qubit 1. find the final state of the two qubits.
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Physics, 21.06.2019 23:20
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
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Physics, 23.06.2019 05:00
Which factor listed below most likely results in the loss of genetic variation from small populations? question 2 options: mutation migration genetic recombination genetic drift
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(a) briefly explain why we cannot find simultaneous eigenfunctions of lg, ly and lz. an electron in...
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