Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Benchmarking the Ability of a Controller to Execute Quantum Error Corrected Non-Clifford Circuits
Y. Kurman, Lior Ella, Ramon Szmuk +4 more·Nov 13, 2023
Reaching fault-tolerant quantum computation relies on the successful implementation of non-Clifford circuits with quantum error correction (QEC). In QEC, quantum gates and measurements encode quantum information into an error-protected Hilbert space,...
Hybrid synaptic structure for spiking neural network realization
S. Razmkhah, M. A. Karamuftuoglu, A. Bozbey·Nov 13, 2023
Neural networks and neuromorphic computing represent fundamental paradigms as alternative approaches to Von-Neumann-based implementations, advancing in the applications of deep learning and machine vision. Nonetheless, conventional semiconductor circ...
Multimode rotation-symmetric bosonic codes from homological rotor codes
Yijia Xu, Yixu Wang, Victor V. Albert·Nov 13, 2023
We develop quantum information processing primitives for the planar rotor, the state space of a particle on a circle. By interpreting rotor wavefunctions as periodically identified wavefunctions of a harmonic oscillator, we determine the group of bos...
QudCom: Towards Quantum Compilation for Qudit Systems
Daniel Volya, Prabhat Mishra·Nov 13, 2023
Qudit-based quantum computation offers unique advantages over qubit-based systems in terms of noise mitigation capabilities as well as algorithmic complexity improvements. However, the software ecosystem for multi-state quantum systems is severely li...
Provably Efficient Learning of Phases of Matter via Dissipative Evolutions
Emilio Onorati, Cambyse Rouz'e, Daniel Stilck Francca +1 more·Nov 13, 2023
The combination of quantum many-body and machine learning techniques has recently proved to be a fertile ground for new developments in quantum computing. Several works have shown that it is possible to classically efficiently predict the expectation...
Reducing Entanglement with Physically Inspired Fermion-To-Qubit Mappings
Teodor Parella-Dilm'e, Korbinian Kottmann, Leonardo Zambrano +3 more·Nov 13, 2023
In electronic structure simulations, fermion-to-qubit mappings represent the initial encoding step from the problem of fermions into a problem of qubits. This work introduces a physically inspired method for constructing mappings that significantly s...
Single-layer digitized-counterdiabatic quantum optimization for p-spin models
Hui-Rui Guan, Fei Zhou, F. Albarr'an-Arriagada +4 more·Nov 11, 2023
Quantum computing holds the potential for quantum advantage in optimization problems, which requires advances in quantum algorithms and hardware specifications. Adiabatic quantum optimization is conceptually a valid solution that suffers from limited...
Essential difference between 2D and 3D from the perspective of real-space renormalization group
Xinliang Lyu, Naoki Kawashima·Nov 10, 2023
We point out that area laws of quantum-information concepts indicate limitations of block transformations as well-behaved real-space renormalization group (RG) maps, which in turn guides the design of better RG schemes. Mutual-information area laws i...
Characterization of non-adaptive Clifford channels
V. Yashin, Maria Elovenkova·Nov 10, 2023
Stabilizer circuits arise in almost every area of quantum computation and communication, so there is interest in studying them from an information-theoretic perspective, i.e. as quantum channels. We consider several natural approaches to what can be ...
Benchmarking Quantum Processor Performance at Scale
David C. McKay, Ian Hincks, E. Pritchett +3 more·Nov 10, 2023
As quantum processors grow, new performance benchmarks are required to capture the full quality of the devices at scale. While quantum volume is an excellent benchmark, it focuses on the highest quality subset of the device and so is unable to indica...
Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension
S. Miyakoshi, T. Sugimoto, Tomonori Shirakawa +2 more·Nov 10, 2023
In recent years, quantum computing has evolved as an exciting frontier, with the development of numerous algorithms dedicated to constructing quantum circuits that adeptly represent quantum many-body states. However, this domain remains in its early ...
Nuclear electric resonance for spatially resolved spin control via pulsed optical excitation in the UV-visible spectrum
Johannes K. Krondorfer, Andreas W. Hauser·Nov 9, 2023
Nuclear electric resonance (NER) spectroscopy is currently experiencing a revival as a tool for nuclear spin-based quantum computing. Compared to magnetic or electric fields, local electron density fluctuations caused by changes in the atomic environ...
An introduction to financial option pricing on a qudit-based quantum computer
N. Bornman·Nov 9, 2023
The financial sector is anticipated to be one of the first industries to benefit from the increased computational power of quantum computers, in areas such as portfolio optimisation and risk management to financial derivative pricing. Financial mathe...
Charge qubits based on ultra-thin topological insulator films
Kexin Zhang, H. Lepage, Ying Dong +1 more·Nov 9, 2023
We study how to use the surface states in a Bi2Se3 topological insulator ultra-thin film that are affected by finite size effects for the purpose of quantum computing. We demonstrate that: (i) surface states under the finite size effect can effective...
Real-time error mitigation for variational optimization on quantum hardware
Matteo Robbiati, Alejandro Sopena, Andrea Papaluca +1 more·Nov 9, 2023
In this work we put forward the inclusion of error mitigation routines in the process of training Variational Quantum Circuit (VQC) models. In detail, we define a Real Time Quantum Error Mitigation (RTQEM) algorithm to assist in fitting functions on ...
Blue-Detuned Magneto-optical Trap of CaF Molecules.
Samuel J. Li, Connor M. Holland, Yukai Lu +1 more·Nov 9, 2023
A key method to produce trapped and laser-cooled molecules is the magneto-optical trap (MOT), which is conventionally created using light red detuned from an optical transition. In this work, we report a MOT for CaF molecules created using blue-detun...
Creation of Two-Mode Squeezed States in Atomic Mechanical Oscillators.
W. Leong, Mingjie Xin, Zilong Chen +2 more·Nov 8, 2023
Two-mode squeezed states, which are entangled states with bipartite quantum correlations in continuous-variable systems, are crucial in quantum information processing and metrology. Recently, continuous-variable quantum computing with the vibrational...
Cryogenic Resonant Amplifier for Electron-on-Helium Image Charge Readout
Mikhail Belianchikov, Jakob A. Kraus, Denis Konstantinov·Nov 8, 2023
An electron-on-helium qubit is a promising physical platform for quantum information technologies. Among all the “blueprints” for the qubit realization, a hybrid Rydberg-spin qubit seems to be a promising one toward quantum computing using electron s...
Shortcut‐to‐Adiabatic Controlled‐Phase Gate in Rydberg Atoms
Luis S. Yagüe Bosch, Tim Ehret, F. Petiziol +2 more·Nov 8, 2023
A shortcut‐to‐adiabatic protocol for the realization of a fast and high‐fidelity controlled‐phase gate in Rydberg atoms is developed. The adiabatic state transfer, driven in the high‐blockade limit, is sped up by compensating nonadiabatic transitions...
Learning Quantum Phase Estimation by Variational Quantum Circuits
Chen-Yu Liu, Kuan-Cheng Chen, Chu-Hsuan Abraham Lin·Nov 8, 2023
Quantum Phase Estimation (QPE) stands as a pivotal quantum computing subroutine that necessitates an inverse Quantum Fourier Transform (QFT). However, it is imperative to recognize that enhancing the precision of the estimation inevitably results in ...