Papers

J. Ossorio-Castillo, José M. Tornero·Feb 8, 2024

Two quantum algorithms are presented, which tackle well--known problems in the context of numerical semigroups: the numerical semigroup membership problem (NSMP) and the Sylvester denumerant problem (SDP).

Wei-Ming Chen, Pin-Ju Tsai·Feb 8, 2024

Quantum target detection (QTD) utilizes nonclassical resources to enable radar-like detection for identifying reflecting objects in challenging environments, surpassing classical methods. To fully leverage the quantum advantage in QTD, determining th...

J. A. Montañez-Barrera, D. Willsch, K. Michielsen·Feb 8, 2024

Solving combinatorial optimization problems (COPs) is a promising application of quantum computation, with the quantum approximate optimization algorithm (QAOA) being one of the most studied quantum algorithms for solving them. However, multiple fact...

Soh Kumabe, R. Mori, Y. Yoshimura·Feb 8, 2024

In this work, we study the complexity of graph-state preparation. We consider general quantum algorithms consisting of Clifford operations acting on at most two qubits for graph-state preparations. We define the CZ-complexity of a graph state $|G\ran...

M. Naghmouchi, W. Coelho·Feb 8, 2024

This paper presents a new hybrid classical-quantum approach to solve Mixed Integer Linear Programming (MILP) using neutral atom quantum computations. We apply Benders decomposition (BD) to segment MILPs into a master problem (MP) and a subproblem (SP...

Gilles Parez, William Witczak-Krempa·Feb 7, 2024

Quantum entanglement manifests itself in non-local correlations between the constituents of a system. In its simplest realization, a measurement on one subsystem is affected by a prior measurement on its partner, irrespective of their separation. For...

Waël Ardati, S'ebastien L'eger, Shelender Kumar +8 more·Feb 7, 2024

Encoding quantum information in quantum states with disjoint wave-function support and noise-insensitive energies is the key behind the idea of qubit protection. While fully protected qubits are expected to offer exponential protection against both e...

Eric Sabo, Lane G. Gunderman, Benjamin Ide +2 more·Feb 7, 2024

Stabilizer codes are the most widely studied class of quantum error-correcting codes and form the basis of most proposals for a fault-tolerant quantum computer. A stabilizer code is defined by a set of parity-check operators, which are measured in or...

Hao Xu·Feb 7, 2024

Starting from Polchinski’s thought experiment on how to distinguish between pure and thermal states, we construct a specific system to study the interaction between qubit and cavity quantum field theory (QFT) in order to provide a more operational po...

Junhong Nie, Wei Zi, Xiaoming Sun·Feb 7, 2024

Resource consumption is an important issue in quantum information processing, particularly during the present NISQ era. In this paper, we investigate resource optimization of implementing multiple controlled operations, which are fundamental building...

A. Ray, Boris Škorić·Feb 7, 2024

Continuous-Variable Quantum Key Distribution (CVQKD) at large distances has such high noise levels that the error-correcting code must have very low rate. In this regime it becomes feasible to implement random-codebook error correction, which is know...

Hector Hutin, Antoine Essig, R. Assouly +3 more·Feb 7, 2024

The number of excitations in a large quantum system (harmonic oscillator or qudit) can be measured in a quantum nondemolition manner using a dispersively coupled qubit. It typically requires a series of qubit pulses that encode various binary questio...

Refik Mansuroglu, Arsalan Adil, Michael J. Hartmann +2 more·Feb 7, 2024

The Schmidt decomposition is the go-to tool for measuring bipartite entanglement of pure quantum states. Similarly, it is possible to study the entangling features of a quantum operation using its operator-Schmidt or tensor-product decomposition. Whi...

S. Cantori, S. Pilati·Feb 7, 2024

Recently, deep neural networks have been proven capable of predicting output expectation values of certain random quantum circuits via a supervised learning approach. Here we investigate the potential of this possible approach to the emulation of qua...

Jakab N'adori, Gregory Morse, Barna Fulop Vill'am +3 more·Feb 7, 2024

Variational quantum algorithms are viewed as promising candidates for demonstrating quantum advantage on near-term devices. These approaches typically involve the training of parameterized quantum circuits through a classical optimization loop. Howev...

Y. Kalboussi, B. Delatte, S. Bira +16 more·Feb 6, 2024

Superconducting qubits have arisen as a leading technology platform for quantum computing which is on the verge of revolutionizing the world's calculation capacities. Nonetheless, the fabrication of computationally reliable qubit circuits requires in...

Douglas F. Pinto, Lucas Friedrich, Jonas Maziero·Feb 6, 2024

The preparation of quantum states serves as a pivotal subroutine across various domains, including quantum communication protocols, quantum computing, and the exploration of quantum correlations and other resources within physical systems. Building u...

Nicholas J. C. Papadopoulos, J. T. Reilly, J. D. Wilson +1 more·Feb 6, 2024

Estimating a quantum phase is a necessary task in a wide range of fields of quantum science. To accomplish this task, two well-known methods have been developed in distinct contexts, namely, Ramsey interferometry (RI) in atomic and molecular physics ...

Yingkai Ouyang·Feb 6, 2024

Quantum measurements are ubiquitous in quantum information processing tasks, but errors can render their outputs unreliable. Here, we present a scheme that implements a robust projective measurement through measuring code-inspired observables. Namely...

Xue-Gang Li, Junhua Wang, Yao-Yao Jiang +15 more·Feb 6, 2024

Correlated errors may devastate quantum error corrections that are necessary for the realization of fault-tolerant quantum computation. Recent experiments with superconducting qubits indicate that they can arise from quasiparticle (QP) bursts induced...