Papers

Hezi Zhang, Keyi Yin, Anbang Wu +3 more·May 9, 2023

Chiplet architecture is an emerging architecture for quantum computing that could significantly increase qubit resources with its great scalability and modularity. However, as the computing scale increases, communication between qubits would become a...

Shuo Ma, Genyue Liu, Pai Peng +7 more·May 9, 2023

The development of scalable, high-fidelity qubits is a key challenge in quantum information science. Neutral atom qubits have progressed rapidly in recent years, demonstrating programmable processors and quantum simulators with scaling to hundreds of...

Gr'egoire Barru'e, Tony Quertier·May 9, 2023

In a context of malicious software detection, machine learning (ML) is widely used to generalize to new malware. However, it has been demonstrated that ML models can be fooled or may have generalization problems on malware that has never been seen. W...

Wen‐Qiang Liu, Zhe Meng, Bo Song +6 more·May 9, 2023

Deutsch's algorithm is the first quantum algorithm to demonstrate an advantage over classical algorithms. Here, Deutsch's problem is generalized to n$n$ functions and a quantum algorithm with an indefinite causal order is proposed to solve this probl...

Nikhil S. Mande, Ronald de Wolf·May 8, 2023

Phase estimation, due to Kitaev [arXiv'95], is one of the most fundamental subroutines in quantum computing. In the basic scenario, one is given black-box access to a unitary $U$, and an eigenstate $\lvert ψ\rangle$ of $U$ with unknown eigenvalue $e^...

Vladimir Kremenetski, A. Apte, T. Hogg +2 more·May 8, 2023

The Quantum Approximate Optimization Algorithm and its generalization to Quantum Alternating Operator Ansatz (QAOA) is a promising approach for applying quantum computers to challenging problems such as combinatorial optimization and computational ch...

Lila Cadi Tazi, A. Thom·May 8, 2023

The recent developments of quantum computing present novel potential pathways for quantum chemistry as the scaling of the computational power of quantum computers could be harnessed to naturally encode and solve electronic structure problems. Theoret...

Jann Ernst, Juan-Rafael Álvarez, T. Barrett +1 more·May 8, 2023

Photonic qubits play an instrumental role in the development of advanced quantum technologies, including quantum networking, boson sampling and measurement based quantum computing. A promising framework for the deterministic production of indistingui...

S. Pratapsi, L. Buffoni, S. Gherardini·May 8, 2023

Quantum computers are operated by external driving fields, such as lasers, microwaves, or transmission lines, that execute logical operations on multiqubit registers, leaving the system in a pure state. However, the drive and the logical system might...

Pedro Figueroa Romero, Miha Papič, Adrian Auer +3 more·May 8, 2023

A crucial task to obtain optimal and reliable quantum devices is to quantify their overall performance. The average fidelity of quantum gates is a particular figure of merit that can be estimated efficiently by randomized benchmarking (RB). However, ...

S. E. Ghasempouri, G. Dueck, Stijn De Baerdemacker·May 8, 2023

The variational quantum eigensolver algorithm recently became a popular method to compute the quantum chemical properties of molecules on noisy intermediate scale quantum (NISQ) devices. In order to avoid noise accumulation from the NISQ device in th...

Uliana E. Khodaeva, D. Kovrizhin, J. Knolle·May 8, 2023

The Fermi-Hubbard model is one of the central paradigms in the physics of strongly-correlated quantum many-body systems. Here we propose a quantum circuit algorithm based on the $\mathrm{Z}_2$ lattice gauge theory (LGT) representation of the one-dime...

Brayden Ware, A. Deshpande, D. Hangleiter +4 more·May 8, 2023

Demonstrations of quantum computational advantage and benchmarks of quantum processors via quantum random circuit sampling are based on evaluating the linear cross-entropy benchmark (XEB). A key question in the theory of XEB is whether it approximate...

Prajit Dhara, S. Guha·May 8, 2023

Electron spin states of solid-state defects such as Nitrogen- and Silicon-vacancy {\em color centers} in diamond are a leading quantum-memory candidate for quantum communications and computing. Via open-quantum-systems modeling of spin-phonon couplin...

Nils Quetschlich, Lukas Burgholzer, R. Wille·May 8, 2023

In order to implement a quantum computing application, problem instances must be encoded into a quantum circuit and then compiled for a specific platform. The lengthy compilation process is a key bottleneck in this workflow, especially for problems t...

Muhammad Kashif, S. Al-kuwari·May 8, 2023

Recent advances in quantum computing and machine learning have brought about a promising intersection of these two fields, leading to the emergence of quantum machine learning (QML). However, the integration of quantum computing and machine learning ...

Hyeok Hwang, Jae-Gwan Choi, Eunseong Kim·May 8, 2023

Adaptive tomography has been widely investigated to achieve faster state tomography processing of quantum systems. Infidelity of the nearly pure states in a quantum information process generally scales as O(1/sqrt(N) ), which requires a large number ...

Mohannad Ibrahim, N. Bronn, Gregory T. Byrd·May 7, 2023

In this paper, we propose an ansatz approximation approach for variational quantum algorithms (VQAs) that uses one of the hardware's main attributes, its crosstalk behavior, as its main approximation driver. By utilizing crosstalk-adaptive scheduling...

Yongcheng Ding, Yiming Pan, Xi Chen·May 7, 2023

Superoscillation is a counterintuitive phenomenon for its mathematical feature of ``faster-than-Fourier", which has allowed novel optical imaging beyond the diffraction limit. In this article, we introduce a superoscillating quantum control protocol ...

Gangqiang Liu, A. Lingenfelter, V. Joshi +4 more·May 7, 2023

We present a way to achieve fully directional, quantum-limited phase-preserving amplification in a four-port, four-mode superconducting Josephson circuit by utilizing interference between six parametric processes that couple all four modes. Full dire...