Find answers to your questions about Quantum Computing or help others by answering their Quantum Computing questions.
Is there a way that can obtain sparse matrix of quantum circuit? I used to check my quantum circuit with quantum_info.Operator, but for large number of qubits, it is difficult...
Asked on 12/08/2020 by Jin
1 answerI have a state $|prangle$ that has an extractable Bell state and I want to write it as a Bell state, $|brangle$, with a local unitary acting on...
Asked on 12/07/2020 by meelszz
1 answerI have a quantum state on $ n $ qubits ($ 2^n $ amplitudes) for which I know the amplitudes are real numbers. I want to take the...
Asked on 12/07/2020 by Sorin Bolos
2 answerWhat would be the best/prefered bibtex entry for citing cirq ?Is this ok ?@article{cirq, title={Cirq, a python framework for creating, editing, and invoking Noisy Intermediate...
Asked on 12/06/2020 by joaquin keller
2 answerObserving the violation of Bell inequalities, be it in their original formulation, or in the nowadays more commonly used CHSH formulation, involves computing averages of specific...
Asked on 12/06/2020
4 answerA lot of people believe that quantum computers can prove to be a pivotal step in creating new machine learning and AI algorithms that can give a huge boost to...
Asked on 12/05/2020 by Piyush Kathuria
3 answerIf I were to create a circuit with the following gate: $$tag{1}R_phi = begin{bmatrix} 1 & 0 0 & e^{i phi} end{bmatrix},$$ with $phi$ specified to be...
Asked on 12/05/2020
1 answerConsider a generic bipartite pure state $newcommand{ket}[1]{lvert #1rangle}ketPsiequiv sum_k sqrt{p_k}ket{u_k}otimesket{v_k}inmathcal Xotimesmathcal Y$,where $p_kge0$ are the Schmidt coefficients, and ${ket{u_k}}_ksubsetmathcal X,{ket{v_k}}_ksubsetmathcal Y$ are orthonormal sets of states....
Asked on 12/04/2020
1 answerIn this circuit (link), q0 is Alice's qubit and q1, q2 are entangled qubits given to Alice and Bob respectively. After measuring q2 in this circuit, how...
Asked on 12/04/2020 by Van Peer
2 answerSuppose I share three Bell states among two participants Alice and Bob and Charlie in the following manner:$$ |psirangle=left(dfrac{|0rangle_1|0rangle_2+ |1rangle_1|1rangle_2}{sqrt{2}}right)left(dfrac{|0rangle_3|0rangle_4+ |1rangle_3|1rangle_4}{sqrt{2}}right)left(dfrac{|0rangle_5|0rangle_6+ |1rangle_5|1rangle_6}{sqrt{2}}right) $$I want to find...
Asked on 12/04/2020
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