Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quafu-RL: The Cloud Quantum Computers based Quantum Reinforcement Learning
Baqis Quafu Group·May 29, 2023
With the rapid advent of quantum computing, hybrid quantum-classical machine learning has shown promising computational advantages in many key fields. Quantum reinforcement learning, as one of the most challenging tasks, has recently demonstrated its...
Extension of Exactly-Solvable Hamiltonians Using Symmetries of Lie Algebras.
Smik Patel, Tzu-Ching Yen, A. Izmaylov·May 29, 2023
Exactly solvable Hamiltonians that can be diagonalized by using relatively simple unitary transformations are of great use in quantum computing. They can be employed for the decomposition of interacting Hamiltonians either in Trotter-Suzuki approxima...
Quadratic scaling bosonic path integral molecular dynamics.
Yotam M. Y. Feldman, Barak Hirshberg·May 29, 2023
Bosonic exchange symmetry leads to fascinating quantum phenomena, from exciton condensation in quantum materials to the superfluidity of liquid 4He. Unfortunately, path integral molecular dynamics (PIMD) simulations of bosons are computationally proh...
A Hybrid Quantum-Classical Approach based on the Hadamard Transform for the Convolutional Layer
Hongyi Pan, Xin Zhu, S. Atici +1 more·May 27, 2023
In this paper, we propose a novel Hadamard Transform (HT)-based neural network layer for hybrid quantum-classical computing. It implements the regular convolutional layers in the Hadamard transform domain. The idea is based on the HT convolution theo...
Simulating Quantum Computation: How Many “Bits” for “It”?
Michael Zurel, C. Okay, R. Raussendorf·May 26, 2023
A recently introduced classical simulation method for universal quantum computation with magic states operates by repeated sampling from probability functions [M. Zurel PRL 260404 (2020)]. This method is closely related to sampling algorithms based o...
Thermally driven quantum refrigerator autonomously resets a superconducting qubit
Mohammed Ali Aamir, Paul Jamet Suria, José Antonio Marín Guzmán +4 more·May 26, 2023
Although classical thermal machines power industries and modern living, quantum thermal engines have yet to prove their utility. Here, we demonstrate a useful quantum absorption refrigerator formed from superconducting circuits. We use it to cool a t...
Data-driven quantum dynamical embedding method for long-term prediction on near-term quantum computers
Tai-ping Sun, Zhao-Yun Chen, Cheng Xue +7 more·May 25, 2023
The increasing focus on long-term time series prediction across various fields has been significantly strengthened by advancements in quantum computation. In this paper, we introduce a data-driven method designed for time series prediction with quant...
Security Impact Analysis of Degree of Field Extension in Lattice Attacks on Ring-LWE Problem
Yuri Lucas Direbieski, Hiroki Tanioka, Kenji Matsuura +3 more·May 25, 2023
Modern information communications use cryptography to keep the contents of communications confidential. RSA (Rivest–Shamir–Adleman) cryptography and elliptic curve cryptography, which are public-key cryptosystems, are widely used cryptographic scheme...
Extending the computational reach of a superconducting qutrit processor
Noah Goss, Samuele Ferracin, A. Hashim +5 more·May 25, 2023
Quantum computing with qudits is an emerging approach that exploits a larger, more connected computational space, providing advantages for many applications, including quantum simulation and quantum error correction. Nonetheless, qudits are typically...
A Scalable, Fast and Programmable Neural Decoder for Fault-Tolerant Quantum Computation Using Surface Codes
Mengyu Zhang, Xiangyu Ren, Guanglei Xi +6 more·May 25, 2023
Quantum error-correcting codes (QECCs) can eliminate the negative effects of quantum noise, the major obstacle to the execution of quantum algorithms. However, realizing practical quantum error correction (QEC) requires resolving many challenges to i...
On sampling determinantal and Pfaffian point processes on a quantum computer
R. Bardenet, Michaël Fanuel, A. Feller·May 25, 2023
DPPs were introduced by Macchi as a model in quantum optics the 1970s. Since then, they have been widely used as models and subsampling tools in statistics and computer science. Most applications require sampling from a DPP, and given their quantum o...
Quantum Turnstiles for Robust Measurement of Full Counting Statistics.
R. Samajdar, Ewan McCulloch, V. Khemani +2 more·May 24, 2023
We present a scalable protocol for measuring full counting statistics (FCS) in experiments or tensor-network simulations. In this method, an ancilla in the middle of the system acts as a turnstile, with its phase keeping track of the time-integrated ...
Scalable Generation and Detection of on-Demand W States in Nanophotonic Circuits
Jun Gao, Leonardo Santos, Govind Krishna +8 more·May 24, 2023
Quantum physics phenomena, entanglement and coherence, are crucial for quantum information protocols, but understanding these in systems with more than two parts is challenging due to increasing complexity. The W state, a multipartite entangled state...
Classical and quantum cyclic redundancy check codes
Simeon Ball, Ricard Vilar·May 24, 2023
We prove that certain classical cyclic redundancy check codes can be used for classical error correction and not just classical error detection. We extend the idea of classical cyclic redundancy check codes to quantum cyclic redundancy check codes. T...
Encoding a magic state with beyond break-even fidelity
R. Gupta, N. Sundaresan, Thomas Alexander +10 more·May 23, 2023
To run large-scale algorithms on a quantum computer, error-correcting codes must be able to perform a fundamental set of operations, called logic gates, while isolating the encoded information from noise1–8. We can complete a universal set of logic g...
Non-Markovian cost function for quantum error mitigation with Dirac Gamma matrices representation
Doyeol Ahn·May 23, 2023
This paper investigates the non-Markovian cost function in quantum error mitigation (QEM) and employs Dirac Gamma matrices to illustrate two-qubit operators, significant in relativistic quantum mechanics. Amid the focus on error reduction in noisy in...
A Classical Architecture for Digital Quantum Computers
Fang Zhang, Xing Zhu, Rui Chao +15 more·May 23, 2023
Scaling bottlenecks the making of digital quantum computers, posing challenges from both the quantum and the classical components. We present a classical architecture to cope with a comprehensive list of the latter challenges all at once, and impleme...
TornadoQSim: An Open-source High-Performance and Modular Quantum Circuit Simulation Framework
Aleš Kubíček, Athanasios Stratikopoulos, J. Fumero +2 more·May 23, 2023
In this article, we present TornadoQSim, an open-source quantum circuit simulation framework implemented in Java. The proposed framework has been designed to be modular and easily expandable for accommodating different user-defined simulation backend...
Variational quantum algorithms on cat qubits
Anne-Solene Bornens, Michel Nowak·May 23, 2023
Variational Quantum Algorithms (VQA) have emerged with a wide variety of applications. One question to ask is either they can efficiently be implemented and executed on existing architectures. Current hardware suffers from uncontrolled noise that can...
Error-Mitigated Quantum Routing on Noisy Devices
Wenbo Shi, R. Malaney·May 23, 2023
With sub-threshold quantum error correction on quantum hardware still out of reach, quantum error mitigation methods are currently deemed an attractive option for implementing certain applications on near-term noisy quantum devices. One such applicat...