Siddhant Singh's user avatar
Siddhant Singh's user avatar
Siddhant Singh's user avatar
Siddhant Singh
  • Member for 5 years, 6 months
  • Last seen more than a month ago
33 votes
Accepted

What is the difference between a relative phase and a global phase? In particular, what is a phase?

10 votes

What do the off-diagonal elements of a density matrix physically represent?

5 votes
Accepted

Can we teleport a human or send information faster than light using quantum teleportation?

5 votes

Can one ever find the elements of a superposition state?

5 votes

Composing the CNOT gate as a tensor product of two level matrices

4 votes

Is it correct to say that we need controlled gates because unitary matrices are reversible?

4 votes

Why is there a difference between the simulation results and the actual quantum computer results?

3 votes
Accepted

Can the SWAP test only compare registers with the same number of qubits?

3 votes

What does simultaneous measurement of a mutually commuting set of observables mean?

3 votes

In what sense do repeated applications of Grover's operator rotate the state closer to the target?

3 votes
Accepted

How to test with the "Quantum Internet"?

3 votes

Tools for creating quantum circuit diagrams

3 votes

Are true Projective Measurements possible experimentally?

3 votes

What is the "CP" operation in the context of anti-particles?

2 votes

How does a $2 \pi$ pulse in Cirac Zoller give a -1 sign to the state?

2 votes

Simulating a quantum circuit with decoherence and noise

2 votes
Accepted

Ion trap qubit Hamiltonian calculation manipulation

1 vote

Rabi oscillations with different energy differences

1 vote

Can we do adiabatic quantum computing with a quantum circuit model and how?

1 vote

Do weak measurements (with/without weak values) have any application in quantum computation?

1 vote

Maximally mixed states for more than 1 qubit

1 vote

How to write a post-measurement state, if we don't know the measurement result?

1 vote

Multi-photon states in photonic quantum computing?

1 vote
Accepted

How is postselection used in quantum tomography?

1 vote

Phase shifter acting on double rail states

0 votes

Controlling high-dimensional Hilbert spaces with a single qubit