Quantum Computing Questions, Problems & Solutions : TransWikia.com ~ Page 76

Constructing a time evolution operator $e^{it H}$ for $H^2=I$

Consider a Hamiltonian $H = sigma_x otimes sigma_z$Construct the time evolution operator $U(t) = mathrm{e}^{-frac{iHt}{frac{h}{2pi}}}$ [Hint:Write down the expansion of $mathrm{e}^x$ and use the property of...

Asked on 09/09/2020 by Harshvardhan Chandirasekar

2 answer

How can we implement controlled-T gate using CNOT and H, S and T gates?

In general, is there any way to implement a controlled version of an arbitrary gate U if we are given only CNOT and U gate?...

Asked on 09/02/2020 by Rabins Wosti

3 answer

Tensored vs ordinary measurement mitigation runtime

My experiments show that the runtime of actually applying the measurement filter matrices to circuit execution results is much slower for tensored mitigation than ordinary mitigation. Tensored mitigation quickly becomes...

Asked on 09/02/2020 by FSeed

0 answer

How to do state tomography when using sampling in Qiskit?

Could anyone please explain how do I do state tomography when using sampling (on real device or QASM) in Qiskit? I know there's a special method for...

Asked on 09/02/2020

1 answer

Create this state using CIRQ Coding language

I needed help with CIRQ coding as I'm quite new to Quantum Computing.I read the tutorials on CIRQ but don't really understand it.I'd be very thankful if someone...

Asked on 09/01/2020 by Upatel2

1 answer

Type object 'AllPairs' has no attribute 'params'

When I try QSVM over Iris data, it needs multiclass extension, but when I provide it, a following error is returned:AttributeError ...

Asked on 08/25/2020 by Shubham Agnihotri

1 answer

ERROR_RUNNING_JOB with 32 qubit circuit running on ibmq_qasm_simulator backend

I recently made a quantum circuit that uses 32 qubits and try to run it onIBM Q Experience qasm_simulator backend. But it always ends with ERROR_RUNNING_JOB. When i retrieve...

Asked on 08/23/2020 by Abdalla Essam Ali

1 answer

What does the unitary $[|0ranglelangle 0|otimes I+|1ranglelangle1|otimes(|1ranglelangle 0|+|0ranglelangle1|)]otimes I$ represent?

Consider the following unitary defined for a system $A$ interacting with a bipartite system $BB^prime$ $$U_{AB} = Big[|0rangle langle 0|_{A} otimes mathbf{I}_{B} + |1rangle langle 1|_{A}...

Asked on 08/15/2020

1 answer

How can I make CNOT matrix in multiple qubits system?

I wonder how can I make or build CNOT gate in matrix form in multiple qubits system. I already know how to make CNOT matrix when target and control qubits...

Asked on 08/06/2020

0 answer

How does qiskit finally implement a noise model?

I have been reading qiskit documentation for hours and I still don't get how does it implements noise in the circuit. I have understood that it works with a objects...

Asked on 08/05/2020 by Paula G

1 answer

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