Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta
  • Member for 5 years, 11 months
  • Last seen more than a month ago
8 votes
2 answers
238 views

What exactly is "matrix sparsity" $s$?

8 votes
0 answers
270 views

What is the motivation for Weyl matrices in quantum information theory?

8 votes
2 answers
875 views

Homeomorphism or stereographic projection corresponding to the set of mixed states within the Bloch sphere

8 votes
1 answer
562 views

Understanding the Group Leaders Optimization Algorithm

7 votes
1 answer
280 views

Does the GLOA have any advantage over the Solovay-Kitaev algorithm?

7 votes
1 answer
384 views

Degradable channels and their quantum capacity

7 votes
1 answer
141 views

How did the authors manage to simulate and get the error estimate for a neural network with greater than 7840 qubits?

7 votes
0 answers
198 views

What do "$i$-th basic network", "quantum multiplexers" and "quantum parallelism" mean in this context? How are they beneficial?

7 votes
2 answers
637 views

Significance of the term "diffusion" in Grover's diffusion operator

7 votes
1 answer
433 views

Decomposing a $(w+1)$-qubit permutation gate into $w$-qubit permutation gates, SWAPs and NOTs

6 votes
1 answer
1k views

How to decompose a controlled unitary $C(U)$ operation where $U$ is a 2-qubit gate?

6 votes
1 answer
802 views

Understanding Google's “Quantum supremacy using a programmable superconducting processor” (Part 3): sampling

6 votes
1 answer
205 views

What are some of the interesting problems whose solutions have been proposed using quantum neural networks?

6 votes
4 answers
2k views

How to re-create the following circuit image?

6 votes
0 answers
146 views

How exactly is the stated composite state of the two registers being produced using the $R_{zz}$ controlled rotations?

6 votes
4 answers
1k views

How is a single qubit fundamentally different from a classical coin spinning in the air?

6 votes
2 answers
218 views

Clarification needed: "Simulation" of $e^{-iHt}$ and its time complexity

6 votes
1 answer
211 views

How to construct a quantum circuit (QIP system) for the graph non-isomorphism problem?

6 votes
0 answers
193 views

Why can a point in anti-de Sitter space be modeled as a logical qutrit and how is its error correction done?

6 votes
1 answer
223 views

Why is $P(1,2)_{\text{same}} = \frac{1}{4}$ and not $\frac{1}{2}$ in Preskill's Bell experiment?

5 votes
2 answers
382 views

Quantum proof for the group non-membership problem

5 votes
0 answers
126 views

Why is there no $N$ in the time complexity of the QLSP algorithm by Childs et al.?

5 votes
3 answers
791 views

How to speed up the matrix multiplication steps in multi-linear regression?

5 votes
2 answers
452 views

References on quantum arithmetic circuit complexity

5 votes
1 answer
304 views

Understanding the classification of quantum states based on partial transposition: representations of the bipartite density matrix

5 votes
1 answer
108 views

Motivation for the definition of k-distillability

5 votes
0 answers
547 views

Error: Simulation of "Quantum algorithm for linear systems of equations" for $4\times 4$ systems on Quirk (without SWAP) - Global phase

5 votes
1 answer
835 views

Why is the Toffoli gate not sufficient for universal quantum computation?

5 votes
0 answers
117 views

How's quantum noise and fault-tolerance related to symplectic geometry and geometric quantization?

4 votes
1 answer
208 views

Proof that most Hamiltonian evolutions are not efficiently approximable by quantum circuits