Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Adapting Quantum Approximation Optimization Algorithm (QAOA) for Unit Commitment
S. Koretsky, P. Gokhale, Jonathan M. Baker +8 more·Oct 1, 2021
In the present Noisy Intermediate-Scale Quantum (NISQ), hybrid algorithms that leverage classical resources to reduce quantum costs are particularly appealing. We formulate and apply such a hybrid quantum-classical algorithm to a power system optimiz...
Benchmarking a Probabilistic Coprocessor
J. Kaiser, Risi Jaiswal, B. Behin-Aein +1 more·Sep 30, 2021
Computation in the past decades has been driven by deterministic computers based on classical deterministic bits. Recently, alternative computing paradigms and domain-based computing like quantum computing and probabilistic computing have gained trac...
Sampling quantum states with inequality constraints
Weijun Li, Rui Han, Jiangwei Shang +2 more·Sep 29, 2021
Random samples of quantum states with specific properties are useful for various applications, such as Monte Carlo integration over the state space. In the high-dimensional situations that one encounters already for a few qubits, the quantum state sp...
SU(2) hyper-clocks: Quantum engineering of spinor interferences for time and frequency metrology
T. Zanon-Willette, D. Wilkowski, R. Lefevre +2 more·Sep 28, 2021
In 1949, Ramsey’s method of separated oscillating fields was elaborated boosting over many decades metrological performances of atomic clocks and becoming the standard technique for very high precision spectroscopic measurements. A generalization of t...
Quantum Identity-Based Encryption from the Learning with Errors Problem
Wenhua Gao, Li Yang, Daode Zhang +1 more·Sep 26, 2021
To prevent eavesdropping and tampering, network security protocols take advantage of asymmetric ciphers to establish session-specific shared keys with which further communication is encrypted using symmetric ciphers. Commonly used asymmetric algorith...
All-Photonic Architecture for Scalable Quantum Computing with Greenberger-Horne-Zeilinger States
S. Omkar, Seok-Hyung Lee, Yong-Siah Teo +2 more·Sep 25, 2021
Linear optical quantum computing is beset by the lack of deterministic entangling operations besides photon loss. Motivated by advancements at the experimental front in deterministic generation of various kinds of multiphoton entangled states, we pro...
Constructing Approximately Diagonal Quantum Gates
Colton Griffin, Shawn X. Cui·Sep 10, 2021
We study a method of producing approximately diagonal 1-qubit gates. For each positive integer, the method provides a sequence of gates that are defined iteratively from a fixed diagonal gate and an arbitrary gate. These sequences are conjectured to ...
On-Demand Source of Dual-Rail Photon Pairs Based on Chiral Interaction in a Nanophotonic Waveguide
Freja T. Østfeldt, Eva M. Gonz'alez-Ruiz, Nils V. Hauff +8 more·Sep 8, 2021
Entanglement is the fuel of advanced quantum technology. It is for instance consumed in measurement-based quantum computing and allows loss-tolerant encoding of quantum information. In photonics, entanglement has traditionally been generated probabil...
Achieving near native runtime performance and cross-platform performance portability for random number generation through SYCL interoperability
V. Pascuzzi, M. Goli·Sep 3, 2021
High-performance computing (HPC) is a major driver accelerating scientific research and discovery, from quantum simulations to medical therapeutics. While the increasing availability of HPC resources is in many cases pivotal to successful science, ev...
Quantum design for advanced qubits: plasmonium
Feng-Ming Liu, Ming-Cheng Chen, Can Wang +8 more·Sep 2, 2021
: The increasingly complex quantum electronic circuits with a number of coupled quantum degrees of freedom will become intractable to be simulated on classical computers, and requires quantum computers for an efficient simulation. In turn, it will be...
Measurement-Free Ultrafast Quantum Error Correction by Using Multi-Controlled Gates in Higher-Dimensional State Space
T. Inada, Wonho Jang, Y. Iiyama +4 more·Aug 31, 2021
Quantum error correction is a crucial step beyond the current noisy-intermediate-scale quantum device towards fault-tolerant quantum computing. However, most of the error corrections ever demonstrated rely on post-selection of events or post-correcti...
Quantum Communication Using Semiconductor Quantum Dots
Daniel A. Vajner, L. Rickert, T. Gao +2 more·Aug 31, 2021
Worldwide, enormous efforts are directed toward the development of the so‐called quantum internet. Turning this long‐sought‐after dream into reality is a great challenge that will require breakthroughs in quantum communication and computing. To estab...
Fast generation of cat states in Kerr nonlinear resonators via optimal adiabatic control
Jiao-Jiao Xue, Kenny Yu, Wenxiao Liu +2 more·Aug 30, 2021
Macroscopic cat states have been widely studied to illustrate fundamental principles of quantum physics as well as their applications in quantum information processing. In this paper, we propose a quantum speed-up method for the creation of cat state...
Photonic resource state generation from a minimal number of quantum emitters
Bikun Li, S. Economou, Edwin Barnes·Aug 27, 2021
Multi-photon entangled graph states are a fundamental resource in quantum communication networks, distributed quantum computing, and sensing. These states can in principle be created deterministically from quantum emitters such as optically active qu...
Spiderweb Nanomechanical Resonators via Bayesian Optimization: Inspired by Nature and Guided by Machine Learning
Dongil Shin, Andrea Cupertino, M. H. J. D. Jong +3 more·Aug 10, 2021
From ultrasensitive detectors of fundamental forces to quantum networks and sensors, mechanical resonators are enabling next‐generation technologies to operate in room‐temperature environments. Currently, silicon nitride nanoresonators stand as a lea...
Quantum reinforcement learning: the maze problem
Nicola Dalla Pozza, L. Buffoni, Stefano Martina +1 more·Aug 10, 2021
Quantum machine learning (QML) is a young but rapidly growing field where quantum information meets machine learning. Here, we will introduce a new QML model generalising the classical concept of reinforcement learning to the quantum domain, i.e. qua...
Quantum Quantile Mechanics: Solving Stochastic Differential Equations for Generating Time‐Series
Annie E. Paine, V. Elfving, O. Kyriienko·Aug 6, 2021
A quantum algorithm is proposed for sampling from a solution of stochastic differential equations (SDEs). Using differentiable quantum circuits (DQCs) with a feature map encoding of latent variables, the quantile function is represented for an underl...
An Algebraic Quantum Circuit Compression Algorithm for Hamiltonian Simulation
Daan Camps, Efekan Kökcü, Lindsay Bassman +3 more·Aug 6, 2021
Quantum computing is a promising technology that harnesses the peculiarities of quantum mechanics to deliver computational speedups for some problems that are intractable to solve on a classical computer. Current generation noisy intermediate-scale q...
Architectural considerations in the design of a third-generation superconducting quantum annealing processor
K. Boothby, C. Enderud, T. Lanting +46 more·Aug 5, 2021
Early generations of superconducting quantum annealing processors have provided a valuable platform for studying the performance of a scalable quantum computing technology. These studies have directly informed our approach to the design of the next-g...
Quantum Contextuality
M. Pavičić·Aug 2, 2021
Quantum contextual sets have been recognized as resources for universal quantum computation, quantum steering and quantum communication. Therefore, we focus on engineering the sets that support those resources and on determining their structures and ...