Polylogarithmic-depth controlled-NOT gates without ancilla qubits

B Claudon, J Zylberman, C Feniou, F Debbasch… - Nature …, 2024 - nature.com
Controlled operations are fundamental building blocks of quantum algorithms.
Decomposing n-control-NOT gates (C n (X)) into arbitrary single-qubit and CNOT gates, is a …

Efficient implementation of multi-controlled quantum gates

B Zindorf, S Bose - arxiv preprint arxiv:2404.02279, 2024 - arxiv.org
We present an implementation of multi-controlled quantum gates which provides significant
reductions of cost compared to state-of-the-art methods. The operator applied on the target …

Grover Adaptive Search with Spin Variables

S Fujiwara, N Ishikawa - arxiv preprint arxiv:2410.11633, 2024 - arxiv.org
This paper presents a novel approach to Grover adaptive search (GAS) for a combinatorial
optimization problem whose objective function involves spin variables. While the GAS …

Utilizing redundancies in Qubit Hilbert Space to reduce entangling gate counts in the Unitary Vibrational Coupled-Cluster Method

M Szczepanik, E Zak - arxiv preprint arxiv:2412.03955, 2024 - arxiv.org
We present a new method for state preparation using the Unitary Vibrational Coupled-
Cluster (UVCC) technique. Our approach utilizes redundancies in the Hilbert space in the …