[HTML][HTML] Constrained quantum optimization for extractive summarization on a trapped-ion quantum computer

P Niroula, R Shaydulin, R Yalovetzky, P Minssen… - Scientific Reports, 2022 - nature.com
Realizing the potential of near-term quantum computers to solve industry-relevant
constrained-optimization problems is a promising path to quantum advantage. In this work …

Benchmarking the performance of portfolio optimization with QAOA

S Brandhofer, D Braun, V Dehn, G Hellstern… - Quantum Information …, 2022 - Springer
We present a detailed study of portfolio optimization using different versions of the quantum
approximate optimization algorithm (QAOA). For a given list of assets, the portfolio …

Short-depth circuits for Dicke state preparation

A Bärtschi, S Eidenbenz - 2022 IEEE International Conference …, 2022 - ieeexplore.ieee.org
We present short-depth quantum circuits to deterministically prepare any Dicke state
\left|D_k^n\right⟩, which is the equal-amplitude superposition of all n-qubit computational …

Fast multiqubit gates through simultaneous two-qubit gates

X Gu, J Fernández-Pendás, P Vikstål, T Abad… - PRX Quantum, 2021 - APS
Near-term quantum computers are limited by the decoherence of qubits to only being able to
run low-depth quantum circuits with acceptable fidelity. This severely restricts what quantum …

A divide-and-conquer approach to Dicke state preparation

S Aktar, A Bärtschi, AHA Badawy… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We present a divide-and-conquer approach to deterministically prepare Dicke states (ie,
equal-weight superpositions of all-qubit states with Hamming weight) on quantum …

Asymmetric tridirectional quantum teleportation using seven-qubit cluster states

A Mahjoory, P Kazemikhah, H Aghababa… - Physica …, 2023 - iopscience.iop.org
This paper proposes an asymmetric tridirectional quantum teleportation (TQT) protocol that
uses a seven-qubit cluster states as the quantum channels of each party. In this scheme, any …

Family of Quantum Codes with Exotic Transversal Gates

E Kubischta, I Teixeira - Physical Review Letters, 2023 - APS
Recently, an algorithm has been constructed that shows that the binary icosahedral group 2I
together with a T-like gate forms the most efficient single-qubit universal gate set. To carry …

Preparing valence-bond-solid states on noisy intermediate-scale quantum computers

B Murta, PMQ Cruz, J Fernández-Rossier - Physical Review Research, 2023 - APS
Quantum state preparation is a key step in all digital quantum simulation algorithms. Here
we propose methods to initialize on a gate-based quantum computer a general class of …

State preparation of antisymmetrized geminal power on a quantum computer without number projection

A Khamoshi, R Dutta, GE Scuseria - The Journal of Physical …, 2023 - ACS Publications
The antisymmetrized geminal power (AGP) is equivalent to the number projected Bardeen–
Cooper–Schrieffer (PBCS) wave function. It is also an elementary symmetric polynomial …

A family of permutationally invariant quantum codes

A Aydin, MA Alekseyev, A Barg - Quantum, 2024 - quantum-journal.org
We construct a new family of permutationally invariant codes that correct $ t $ Pauli errors for
any $ t\ge 1$. We also show that codes in the new family correct quantum deletion errors as …