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Quantum Computing

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First bounty you offer on your own question.
Awarded 116 times.
Converting qubit eigenstate to pyscf eigenstate
Awarded Nov 18 at 10:54
How does Nielsens complexity relate to gate complexity numerically
Awarded Sep 1 at 7:35
How can you write out data from QRAM?
Awarded Aug 25 at 22:11
Trace of projected Gaussian operator product: puzzling difference between projection onto filled or empty fermionic mode
Awarded Mar 24 at 9:47
Can a quantum state be prepared to encode two pieces of information, allowing a choice of which to read?
Awarded Dec 13, 2024 at 18:12
APPROX-QCIRCUIT-PROB: does it exist outside wikipedia? What is the correct formulation?
Awarded Sep 11, 2024 at 16:12
(post deleted or otherwise unavailable)
Awarded Aug 18, 2024 at 9:30
Projection and inner products in stim [duplicate]
Awarded Jul 16, 2024 at 0:59
Defining the QFT over finite fields
Awarded Jul 1, 2024 at 17:49
Solving quantum equation using qiskit
Awarded May 22, 2024 at 22:18
What's the cost of finding $(x,y)$ such that $g(f(x),y)=1$ via Grover?
Awarded May 21, 2024 at 0:11
Surface Code - Convert Control Error to Clifford Error
Awarded May 12, 2024 at 13:06
(post deleted or otherwise unavailable)
Awarded Apr 6, 2024 at 21:16
Effective Hamiltonian using Schrieffer-Wolff transformation and QuTiP
Awarded Apr 2, 2024 at 7:36
Truthfulness of Entanglement Fidelity
Awarded Feb 15, 2024 at 5:06
Injective Matrix Product State
Awarded Feb 3, 2024 at 7:57
Running circuits back to back in Qiskit
Awarded Jan 9, 2024 at 7:47
How to devise a flag qubit scheme for concatenated codes?
Awarded Dec 24, 2023 at 18:33
Problem with orthogonal traceless Hermitian matrices
Awarded Nov 29, 2023 at 13:18
Superconducting charge qubit and Cooper pairs
Awarded Nov 12, 2023 at 22:18
Why is it hard to prove complexity bounds for variational algorithms?
Awarded Nov 9, 2023 at 19:16
How to build the quantum circuit ansatz to implement a diagonal unitary operator with just 1 and -1 elements?
Awarded Oct 22, 2023 at 16:25
how is logical error rate calculated?
Awarded Sep 28, 2023 at 17:10
Are there practical benefits of using qudits over qubits?
Awarded Sep 23, 2023 at 12:55
How should $\rho(b,b')$ be interpreted in the context of classical-quantum state
Awarded Aug 27, 2023 at 13:03
Why is the combination of NTRU Prime and X25519 ECDH in OpenSSH believed to be secure against quantum attacks?
Awarded Jul 26, 2023 at 9:48
Two-way quantum computers (like in Ising model) - are they possible? Could solve general NP problems? [closed]
Awarded Jul 17, 2023 at 14:58
How would HSP with $S_N$ work when the automorphism subgroup is (almost) equal to the symmetric group?
Awarded May 4, 2023 at 23:31
Detailed references on Quantum Principal Component Analysis
Awarded Mar 28, 2023 at 18:55
Optimal estimation of quantum state overlap - Circuit implementation?
Awarded Mar 11, 2023 at 21:40
Is it possible to automatically rename a job at submission time?
Awarded Feb 9, 2023 at 22:35
Apply a single-qubit channel between in between two circuits in Qiskit
Awarded Dec 4, 2022 at 14:42
Realizing a swap gate using a commutator sequence and an auxiliary qudit
Awarded Nov 29, 2022 at 4:55
Are there any systematic tools for estimating expected error rate?
Awarded Oct 30, 2022 at 8:51
Prove that a channel is close to acting on only one system
Awarded Aug 26, 2022 at 13:47
Why can't there be an error detecting code with fewer than 4 qubits?
Awarded Aug 2, 2022 at 17:17
On the photonic implementation of Shor's code
Awarded Jun 18, 2022 at 11:28
Scaling functions for the logical error rate of the surface code
Awarded May 22, 2022 at 3:06
Is it essential to apply Quantum Singular Value transformation twice for Hamiltonian simulation?
Awarded Apr 19, 2022 at 16:46
Two definitions of the Clifford group and their relation
Awarded Mar 23, 2022 at 7:26
Creating a unitary for binary encoding with respect to already encoded index states
Awarded Feb 22, 2022 at 5:26
State evolution and phase correction for iterative phase estimation
Awarded Feb 20, 2022 at 5:30
For which quantum algorithms is it sufficient to know $\langle \sigma_1...\sigma_{N} \rangle$ and/or $\langle \sigma_i \rangle$?
Awarded Jan 8, 2022 at 14:36
How big is the Hilbert space of a boson sampling experiment?
Awarded Dec 31, 2021 at 23:03
Volume law spread after Hamiltonian evolution
Awarded Dec 15, 2021 at 19:12
In a transmon qubit, what corresponds to the ground and excited states?
Awarded Dec 4, 2021 at 1:25
Reading a classical register in OPENQASM
Awarded Nov 20, 2021 at 4:27
Stabilizer codes to Classical codes over GF(4)
Awarded Nov 16, 2021 at 4:34
What is the quantum capacity of the combined amplitude and phase damping channel?
Awarded Oct 4, 2021 at 8:52
Why the partial derivative of cost function is written in this form?
Awarded Oct 2, 2021 at 1:05
Prove that autocompatible LCPT maps are antidegradable
Awarded Sep 13, 2021 at 11:26
BHT algorithm implementation
Awarded Aug 24, 2021 at 9:56
What is the justification for the use of this arbitrary post-processing vector?
Awarded Aug 16, 2021 at 16:34
Is it currently more cost effective/efficient to run a general purpose parallel algorithm on an accelerated quantum simulator or on CPUs?
Awarded Jul 18, 2021 at 18:26
What is the connection between Bures metric and (finite) Bures distance?
Awarded Jul 8, 2021 at 18:07
Transpilation on restricted topology does not yield an equivalent circuit in Qiskit
Awarded Jun 17, 2021 at 7:19
Apply readout error mitigation to mid-circuit measurement
Awarded Jun 9, 2021 at 0:57
What was the meaning of Lossless Quantum compression?
Awarded May 2, 2021 at 0:10
What does it mean for a circuit to be a valid instance of the Bernstein-Vazirani problem?
Awarded May 1, 2021 at 18:03
What is the difference between "Shot-Noise-Limit" and "Standard Quantum Limit"?
Awarded Apr 22, 2021 at 10:25
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