Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,204
This Month
1,213
Today
0
Research Volume
15,372 papers in 12 months (-8% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Semantic embedding for quantum algorithms
Z. M. Rossi, I. Chuang·Apr 27, 2023
The study of classical algorithms is supported by an immense understructure, founded in logic, type, and category theory, that allows an algorithmist to reason about the sequential manipulation of data irrespective of a computation’s realizing dynami...
BCQQ: Batch-Constraint Quantum Q-Learning with Cyclic Data Re-uploading
Maniraman Periyasamy, Marc Hölle, Marco Wiedmann +3 more·Apr 27, 2023
Deep reinforcement learning (DRL) often requires a large number of data and environment interactions, making the training process time-consuming. This challenge is further exacerbated in the case of batch RL, where the agent is trained solely on a pr...
Optimizing Variational Quantum Algorithms with qBang: Efficiently Interweaving Metric and Momentum to Navigate Flat Energy Landscapes
David Fitzek, Robert S. Jonsson, Werner Dobrautz +1 more·Apr 27, 2023
Variational quantum algorithms (VQAs) represent a promising approach to utilizing current quantum computing infrastructures. VQAs are based on a parameterized quantum circuit optimized in a closed loop via a classical algorithm. This hybrid approach ...
Quantum Computing Applications for Flight Trajectory Optimization
Henry Makhanov, Kanav Setia, Junyu Liu +2 more·Apr 27, 2023
Major players in the global aerospace industry are shifting their focus toward achieving net carbon-neutral operations by 2050. A considerable portion of the overall carbon emission reduction is expected to come from new aircraft technologies, such a...
Chlorine vacancy in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>4</mml:mn><mml:mi>H</mml:mi><mml:mtext>−</mml:mtext><mml:mi mathvariant="normal">SiC</mml:mi></mml:mrow></mml:math> : An NV-like defect with telecom-wavelength emission
Oscar Bulancea-Lindvall, J. Davidsson, R. Armiento +1 more·Apr 27, 2023
The diamond nitrogen vacancy (NV) center remains an ever increasing topic of interest. At present, it is considered an ideal example of a solid-state qubit applicable in quantum communication, computing, and sensing alike. With its success, the searc...
Neutral atom quantum computing hardware: performance and end-user perspective
Karen Wintersperger, F. Dommert, Thomas Ehmer +7 more·Apr 27, 2023
We present an industrial end-user perspective on the current state of quantum computing hardware for one specific technological approach, the neutral atom platform. Our aim is to assist developers in understanding the impact of the specific propertie...
Classical chaos in quantum computers
Simon-Dominik Börner, C. Berke, D. DiVincenzo +2 more·Apr 27, 2023
The development of quantum computing hardware is facing the challenge that current-day quantum processors, comprising 50–100 qubits, already operate outside the range of quantum simulation on classical computers. In this paper we demonstrate that the...
Ultrafast and Electrically Tunable Rabi Frequency in a Germanium Hut Wire Hole Spin Qubit.
He Liu, Ke Wang, Fei Gao +9 more·Apr 26, 2023
Hole spin qubits based on germanium (Ge) have strong tunable spin-orbit interaction (SOI) and ultrafast qubit operation speed. Here we report that the Rabi frequency (fRabi) of a hole spin qubit in a Ge hut wire (HW) double quantum dot (DQD) is elect...
Quantum Natural Policy Gradients: Towards Sample-Efficient Reinforcement Learning
Nico Meyer, D. D. Scherer, A. Plinge +2 more·Apr 26, 2023
Reinforcement learning is a growing field in AI with a lot of potential. Intelligent behavior is learned automatically through trial and error in interaction with the environment. However, this learning process is often costly. Using variational quan...
Strong Dispersive Coupling Between a Mechanical Resonator and a Fluxonium Superconducting Qubit
Nathan R. A. Lee, Yudan Guo, A. Cleland +10 more·Apr 26, 2023
We demonstrate strong dispersive coupling between a fluxonium superconducting qubit and a 690 megahertz mechanical oscillator, extending the reach of circuit quantum acousto-dynamics (cQAD) experiments into a new range of frequencies. We have enginee...
Avoiding barren plateaus in the variational determination of geometric entanglement
L. Zambrano, A. Muñoz-Moller, M. Muñoz +2 more·Apr 26, 2023
The barren plateau (BP) phenomenon is one of the main obstacles to implementing variational quantum algorithms in the current generation of quantum processors. Here, we introduce a method capable of avoiding the BP phenomenon in the variational deter...
Recursive Quantum Eigenvalue/Singular-Value Transformation: Analytic Construction of Matrix Sign Function by Newton Iteration
Kaoru Mizuta, K. Fujii·Apr 26, 2023
Quantum eigenvalue transformation (QET) and its generalization, quantum singular value transformation (QSVT), are versatile quantum algorithms that allow us to apply broad matrix functions to quantum states, which cover many of significant quantum al...
GAPs for Shallow Implementation of Quantum Finite Automata
Mansur Ziiatdinov, A. Khadieva, A. Yakaryılmaz·Apr 25, 2023
Quantum fingerprinting is a technique that maps classical input word to a quantum state. The obtained quantum state is much shorter than the original word, and its processing uses less resources, making it useful in quantum algorithms, communication,...
Hotter is Easier: Unexpected Temperature Dependence of Spin Qubit Frequencies
B. Undseth, O. Pietx-Casas, E. Raymenants +13 more·Apr 25, 2023
As spin-based quantum processors grow in size and complexity, maintaining high fidelities and minimizing crosstalk will be essential for the successful implementation of quantum algorithms and error-correction protocols. In particular, recent experim...
Quantum Computing with Dartboards.
Ishaan Ganti, S. Iyengar·Apr 25, 2023
We present a physically appealing and elegant picture for quantum computing, using rules constructed for a game of darts. A dartboard is used to represent the state space in quantum mechanics, and the act of throwing the dart is shown to have close s...
Quantum Gaussian process regression for Bayesian optimization
Frederic Rapp, Marco Roth·Apr 25, 2023
Gaussian process regression is a well-established Bayesian machine learning method. We propose a new approach to Gaussian process regression using quantum kernels based on parameterized quantum circuits. By employing a hardware-efficient feature map ...
Fully-Passive Twin-Field Quantum Key Distribution
Wenyuan Wang, Rong Wang, H. F. Chau +1 more·Apr 24, 2023
We propose a fully passive twin-field quantum key distribution (QKD) setup where basis choice, decoy-state preparation and encoding are all implemented entirely by post-processing without any active modulation. Our protocol can remove the potential s...
Automatic pulse-level calibration by tracking observables using iterative learning
A. Goldschmidt, F. Chong·Apr 24, 2023
Model-based quantum optimal control promises to solve a wide range of critical quantum technology problems within a single, flexible framework. The catch is that highly-accurate models are needed if the optimized controls are to meet the exacting dem...
Optimal Layout Synthesis for Quantum Circuits as Classical Planning
Irfansha Shaik, J. Pol·Apr 24, 2023
In Layout Synthesis, the logical qubits of a quantum circuit are mapped to the physical qubits of a given quantum hardware platform, taking into account the connectivity of physical qubits. This involves inserting SWAP gates before an operation is ap...
Distributed Phase Estimation Algorithm and Distributed Shor's Algorithm
Li Xiao, Daowen Qiu, Leon Luo +1 more·Apr 24, 2023
Shor's algorithm is one of the most significant quantum algorithms. Shor's algorithm can factor large integers with a certain success probability in polynomial time. However, Shor's algorithm requires an unbearable amount of qubits in the NISQ (Noisy...