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All questions asked by joshnow

List all solved & unsolved questions asked by joshnow

Step by step protocol for complete system wipe (suspecting persistent backdoor)

1   Information Security Asked on 01/13/2021

backdoor  malware  ubuntu 

Is the quantum min-relative entropy $D_{min}(rho|sigma)=-log(F(rho, sigma)^2)$ or $D_{min}(rho|sigma)=-log(tr(Pi_rhosigma))$?

1   Quantum Computing Asked on 08/20/2021

entropy  fidelity  information theory  relative entropy 

How do I "add" two qubit states?

1   Quantum Computing Asked on 08/20/2021

quantum gate  quantum state 

How to transform a state with amplitude squared or to any power?

1   Quantum Computing Asked on 08/20/2021

circuit construction  quantum gate  quantum state 

Can any channel be written as $Phi(X)=operatorname{Tr}_{mathcal Z}[U(Xotimes sigma)U^dagger]$ for any state $sigma$?

1   Quantum Computing Asked on 08/20/2021

kraus representation  quantum operation 

How to remove ancilla bits from results?

1   Quantum Computing Asked on 08/20/2021

ibm q experience 

What is the set of all functions from ℤ to ℤ?

2   Quantum Computing Asked on 08/20/2021

deutsch jozsa algorithm  mathematics 

Why should we use density matrices to simulate quantum systems with noise?

2   Quantum Computing Asked on 08/20/2021

noise  quantum gate  quantum state  simulation 

What is the implication of locality in QAOA?

1   Quantum Computing Asked on 08/20/2021

nisq  qaoa 

Given a channel $Phi(X)=sum_k c_k(X)sigma_k$, are there always $F_kge0$ such that $Phi(X)=sum_k operatorname{tr}(F_k X)sigma_k$?

1   Quantum Computing Asked on 08/20/2021

measurement  quantum operation 

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