Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,522 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Robust Quantum Control for the Manipulation of Solid-State Spins
Yi-fan Zhang, Hao Wu, Xiao-dong Yang +6 more·May 5, 2022
Robust and high-fidelity control of electron spins in solids is the cornerstone for facilitating applications of solid-state spins in quantum information processing and quantum sensing. However, precise control of spin systems is always challenging d...
Group-Invariant Quantum Machine Learning
Martín Larocca, F. Sauvage, Faris M. Sbahi +3 more·May 4, 2022
Quantum Machine Learning (QML) models are aimed at learning from data encoded in quantum states. Recently, it has been shown that models with little to no inductive biases (i.e., with no assumptions about the problem embedded in the model) are likely...
High-fidelity and large-scale reconfigurable photonic processor for NISQ applications.
A. Cavaillès, P. Boucher, L. Daudet +3 more·May 3, 2022
Reconfigurable linear optical networks are a key component for the development of optical quantum information processing platforms in the NISQ era and beyond. We report the implementation of such a device based on an innovative design that uses the m...
A near-term quantum algorithm for solving linear systems of equations based on the Woodbury identity
Daniel O’Malley, Jessie M. Henderson, Elijah Pelofske +5 more·May 2, 2022
Quantum algorithms for solving linear systems of equations have generated excitement because of the potential speed-ups involved and the importance of solving linear equations in many applications. However, applying these algorithms can be challengin...
On the importance of scalability and resource estimation of quantum algorithms for domain sciences
V. Pascuzzi, N. Bao, A. Li·May 2, 2022
—The quantum information science community has seen a surge in new algorithmic developments across scientific domains. These developments have demonstrated polynomial or better improvements in computational and space complexity, incentivizing further ...
Efficient Quantum Algorithm for Nonlinear Reaction–Diffusion Equations and Energy Estimation
Jin-Peng Liu, Dong An, Di Fang +3 more·May 2, 2022
Nonlinear differential equations exhibit rich phenomena in many fields but are notoriously challenging to solve. Recently, Liu et al. (in: Proceedings of the National Academy of Sciences 118(35), 2021) demonstrated the first efficient quantum algorit...
Multi-Entanglement Routing Design over Quantum Networks
Yiming Zeng, Jiarui Zhang, Ji Liu +2 more·May 2, 2022
Quantum networks are considered as a promising future platform for quantum information exchange and quantum applications, which have capabilities far beyond the traditional communication networks. Remote quantum entanglement is an essential component...
Decoherence mitigation by embedding a logical qubit in a qudit
Hideyuki Miyahara, Yiyou Chen, V. Roychowdhury +1 more·May 1, 2022
Quantum information stored in a qubit is rapidly lost to the environment. The realization of robust qubits is one of the most important challenges in quantum computing. Herein, we propose to embed a logical qubit within the manifold of a qudit as a s...
Quantum image edge detection based on eight-direction Sobel operator for NEQR
Wenjie Liu, Lu Wang·May 1, 2022
Quantum Sobel edge detection (QSED) is a kind of algorithm for image edge detection using quantum mechanism, which can solve the real-time problem encountered by classical algorithms. However, the existing QSED algorithms only consider two- or four-d...
Dynamical Purification and the Emergence of Quantum State Designs from the Projected Ensemble
Matteo Ippoliti, W. Ho·Apr 28, 2022
Quantum thermalization in a many-body system is defined by the approach of local subsystems towards a universal form, describable as an ensemble of quantum states wherein observables acquire thermal expectation values. Recently, it was demonstrated t...
Quantum polar stabilizer codes based on polarization of pure quantum channel don't work for quantum computing
Zhengzhong Yi, Z.-H. Liang, Yulin Wu +1 more·Apr 25, 2022
Inspired by classical polar codes, whose coding rate can asymptotically achieve the Shannon capacity, researchers are trying to find its analogue in quantum information field, which are called quantum polar codes. However, no one has designed a quant...
Hybrid controlled-sum gate with one superconducting qutrit and one cat-state qutrit and application in hybrid entangled state preparation
Qi-Ping Su, Yu Zhang, Liang Bin +1 more·Apr 25, 2022
Compared with a qubit, a qudit (i.e., d -level or d -state quantum system) provides a larger Hilbert space to store and process information. On the other hand, qudit-based hybrid quantum computing usually requires performing hybrid quantum gates with...
A quantum Fourier transform (QFT) based note detection algorithm
Shlomo Kashani, Maryam Alqasemi, Jacob Hammond·Apr 25, 2022
In quantum information processing (QIP), the quantum Fourier transform (QFT) has a plethora of applications [1] [2] [3]: Shor’s algorithm and phase estimation are just a few well-known examples. Shor’s quantum factorization algorithm, one of the most...
Quantum computing hardware for HEP algorithms and sensing
M. S. Alam, S. Belomestnykh, N. Bornman +37 more·Apr 19, 2022
Quantum information science harnesses the principles of quantum mechanics to realize computational algorithms with complexities vastly intractable by current computer platforms. Typical applications range from quantum chemistry to optimization proble...
New Aspects of Optical Coherence and Their Potential for Quantum Technologies
N. Miller·Apr 19, 2022
Currently, optical technology impacts most of our lives, from light used in scientific measurement to the fiber optic cables that makeup the backbone of the internet. However, as our current optical infrastructure grows, we discover that these techno...
Two-level quantum walkers on directed graphs. II. Application to quantum random access memory
Ryo Asaka, K. Sakai, Ryoko Yahagi·Apr 19, 2022
This is the second paper in a series of two. Using a multi-particle continuous-time quantum walk with two internal states, which has been formulated in the first paper (arXiv:2112.08119), we physically implement a quantum random access memory (qRAM)....
Adaptive measurement filter: efficient strategy for optimal estimation of quantum Markov chains
Alfred Godley, M. Guţă·Apr 19, 2022
Continuous-time measurements are instrumental for a multitude of tasks in quantum engineering and quantum control, including the estimation of dynamical parameters of open quantum systems monitored through the environment. However, such measurements ...
Near-Optimal Fidelity in Quantum Circuits through Incorporating Efficient Real-time Error Based Heuristics in Compiler Mappings
Md. Nurul Muttakin·Apr 18, 2022
To run a quantum program in the real device, the compiler maps the logical qubits to physical qubits. This is the most crucial step of compiling a quantum circuit. Because the fidelity of a quantum circuit depends heavily on this mapping process. How...
Quantum Many-Body Systems in Thermal Equilibrium
Álvaro M. Alhambra·Apr 18, 2022
The thermal or equilibrium ensemble is one of the most ubiquitous states of matter. For models comprised of many locally interacting quantum particles, it describes a wide range of physical situations, relevant to condensed matter physics, high energ...
Quantum Control of Hole Spin Qubits in Double Quantum Dots
D. Fernández-Fernández, Y. Ban, G. Platero·Apr 15, 2022
Hole spin qubits in semiconductor quantum dots (QDs) are promising candidates for quantum information processing due to their weak hyperfine coupling to nuclear spins, and to the strong spin-orbit coupling which allows for rapid operation time. We pr...