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Martin Vesely

I graduated from Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University where I studied computer sciences in economics.

My hobbies are traveling, reading, quantum computing and science in general.

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Top Questions
16 votes

Why are non-Clifford gates more complex than Clifford gates?

quantum-gate complexity-theory simulation clifford-group gottesman-knill asked Jan 31, 2020 at 11:11
quantumcomputing.stackexchange.com

13 votes

What was the first electronic computer?

computation computers asked Apr 12, 2020 at 7:54
hsm.stackexchange.com

12 votes

Negative price of oil

futures price commodities asked Apr 21, 2020 at 13:59
quant.stackexchange.com

12 votes

How to approximate $Rx$, $Ry$ and $Rz$ gates?

quantum-gate circuit-construction quantum-inspire asked May 5, 2020 at 10:21
quantumcomputing.stackexchange.com

11 votes

How many classical bits are needed to represent a qubit?

bloch-sphere information-theory asked Mar 13, 2020 at 14:45
quantumcomputing.stackexchange.com

10 votes

Travelling salesman problem on quantum computer

speedup optimization phase-estimation quantum-computing-for-finance asked Jan 12, 2020 at 21:43
quantumcomputing.stackexchange.com

8 votes

How to perform quantum state tomography on two qubits?

quantum-state measurement nielsen-and-chuang tomography asked Dec 1, 2019 at 15:08
quantumcomputing.stackexchange.com

8 votes

Classical algorithm with complexity similar to Shor's discovered: Are there more efficient quantum algorithms than Shor's?

algorithm complexity-theory classical-computing shors-algorithm asked Mar 9, 2021 at 13:59
quantumcomputing.stackexchange.com

8 votes

How to make a warp bubble moving?

faster-than-light warp-drives asked Jul 30, 2021 at 7:00
physics.stackexchange.com

8 votes

How can time crystals be useful in qRAM design?

physical-realization google-sycamore quantum-memory asked Aug 15, 2021 at 21:15
quantumcomputing.stackexchange.com

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Top Answers
21
What's the difference between T1 and T2?
quantumcomputing.stackexchange.com

15
How to measure in another basis
quantumcomputing.stackexchange.com

14
Why isn't $Ry(\pi/2)$ gate equivalent to Hadamard gate?
quantumcomputing.stackexchange.com

10
Why do we have to measure the circuit before sending it to the real quantum computer?
quantumcomputing.stackexchange.com

9
What is the fastest quantum computational algorithm by which quantum computer speed up than classic one?
quantumcomputing.stackexchange.com

9
Negative of a qubit state
quantumcomputing.stackexchange.com

8
Why is a Hadamard gate unitary?
quantumcomputing.stackexchange.com

8
How can I fill a unitary knowing only its first column?
quantumcomputing.stackexchange.com

7
How do I write the matrix for a CZ gate operating on nonadjacent qubits?
quantumcomputing.stackexchange.com

7
How to implement a Fredkin gate using Toffoli and CNOTs?
quantumcomputing.stackexchange.com

7
What unitary gate produces these quantum states from the computational basis?
quantumcomputing.stackexchange.com

7
Why do quantum computers have more qubits than classical computers have bits?
quantumcomputing.stackexchange.com

7
How to show mathematically the equivalency between Ising Model and QUBO?
quantumcomputing.stackexchange.com

7
How does the CNOT gate work?
quantumcomputing.stackexchange.com

7
What makes representing qubits in a 3D real vector space possible?
quantumcomputing.stackexchange.com

7
Is there a gate that puts a qubit into superposition with a not so purely probabalistic (50 50) outcome?
quantumcomputing.stackexchange.com

6
Quantum and classical physics are reversible, yet quantum gates have to be reversible, whereas classical gates need not. Why?
physics.stackexchange.com

6
What use cases are there for 127 qubit QPUs?
quantumcomputing.stackexchange.com

6
Is $\cos(2\theta)=\frac{2e^{i\theta}+2e^{-i\theta}}2$ a correct application of Euler's Formula?
math.stackexchange.com

6
Why does portfolio optimization require a positive-definite covariance matrix?
quant.stackexchange.com

6
Why can photons be used as qubits?
physics.stackexchange.com

6
What are examples of quantum computing platforms availble for free (other than IBM Q)?
quantumcomputing.stackexchange.com

6
Implementing a controlled-controlled-U using controlled-U
quantumcomputing.stackexchange.com

6
Why IBM Quantum Experience is giving different results under ibmq_qasm_simulator and ibmq_16_melbourne?
quantumcomputing.stackexchange.com

6
What is meant with "shot" in quantum computation?
quantumcomputing.stackexchange.com

6
Compute the output of the quantum teleportation circuit
quantumcomputing.stackexchange.com

6
How to interpret a 4 qubit quantum circuit as a matrix?
quantumcomputing.stackexchange.com

6
How to get specific state applying $e^{-i\phi \sigma_2/2}$ to $|0\rangle$ or $|1\rangle$?
quantumcomputing.stackexchange.com

6
Why is the order reversed on measurement?
quantumcomputing.stackexchange.com

5
Exponential Growth of Noise in Quantum Computers
quantumcomputing.stackexchange.com

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