Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,524 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Accelerating the Training of Single Layer Binary Neural Networks using the HHL Quantum Algorithm
S. L. Alarcón, Cory E. Merkel, Martin Hoffnagle +2 more·Oct 1, 2022
Binary Neural Networks are a promising technique for implementing efficient deep models with reduced storage and computational requirements. The training of these is however, still a compute-intensive problem that grows drastically with the layer siz...
On the role of entanglement in qudit-based circuit compression
Xiaoqin Gao, Paul Appel, N. Friis +2 more·Sep 29, 2022
Gate-based universal quantum computation is formulated in terms of two types of operations: local single-qubit gates, which are typically easily implementable, and two-qubit entangling gates, whose faithful implementation remains one of the major exp...
Quantum phase processing and its applications in estimating phase and entropies
Youle Wang, Lei Zhang, Zhan Yu +1 more·Sep 28, 2022
Quantum computing can provide speedups in solving many problems as the evolution of a quantum system is described by a unitary operator in an exponentially large Hilbert space. Such unitary operators change the phase of their eigenstates and make qua...
Compact and complete description of non-Markovian dynamics.
T. Sayer, Andrés Montoya-Castillo·Sep 26, 2022
Generalized master equations provide a theoretically rigorous framework to capture the dynamics of processes ranging from energy harvesting in plants and photovoltaic devices to qubit decoherence in quantum technologies and even protein folding. At t...
Hello Quantum World! A rigorous but accessible first-year university course in quantum information science
S. Economou, Edwin Barnes·Sep 25, 2022
Addressing workforce shortages within the Quantum Information Science and Engineering (QISE) community requires attracting and retaining students from diverse backgrounds early on in their undergraduate education. Here, we describe a course we develo...
Phonon Induced Spin Dephasing Time of Nitrogen Vacancy Centers in Diamond from First Principles
J. Simoni, V. Ivanov, T. Schenkel +1 more·Sep 23, 2022
Spin qubits with long dephasing times are an essential requirement for the development of new quantum technologies and have many potential applica-tions ranging from quantum information processing to quantum memories and quantum networking. Here we r...
Multiplexed control of spin quantum memories in a photonic circuit
D. A. Golter, G. Clark, Tareq El Dandachi +11 more·Sep 23, 2022
A central goal in many quantum information processing applications is a network of quantum memories that can be entangled with each other while being individually controlled and measured with high fidelity. This goal has motivated the development of ...
Detecting entanglement by pure bosonic extension
Xuanran Zhu, Chao Zhang, Chenfeng Cao +3 more·Sep 22, 2022
In the realm of quantum information theory, the detection and quantification of quantum entanglement stand as paramount tasks. The relative entropy of entanglement (REE) serves as a prominent measure of entanglement, with extensive applications spann...
Quantum optimal control without arbitrary waveform generators
Qiming Chen, H. Rabitz, R. Wu·Sep 20, 2022
Simple, precise, and robust control is demanded for operating a large quantum information processor. However, existing routes to high-fidelity quantum control rely heavily on arbitrary waveform generators that are difficult to scale up. Here, we show...
FV-Train: Quantum Convolutional Neural Network Training with a Finite Number of Qubits by Extracting Diverse Features (Student Abstract)
Hankyul Baek, Won Joon Yun, Joongheon Kim·Sep 19, 2022
Quantum convolutional neural network (QCNN) has just become as an emerging research topic as we experience the noisy intermediate-scale quantum (NISQ) era and beyond. As convolutional filters in QCNN extract intrinsic feature using quantum-based ansa...
A general quantum circuit framework for Extended Wigner's Friend Scenarios: logically and causally consistent reasoning without absolute measurement events
V. Vilasini, M. P. Woods·Sep 19, 2022
Extended Wigner's Friend Scenarios (EWFSs) go beyond the standard usage of quantum theory, where agents are treated classically, and instead model agents as unitary evolving quantum systems. This has been the subject of several no-go results: Frauchi...
C2QA - Bosonic Qiskit
Timothy J Stavenger, E. Crane, Kevin C. Smith +3 more·Sep 19, 2022
The practical benefits of hybrid quantum information processing hardware that contains continuous-variable objects (bosonic modes such as mechanical or electromagnetic oscillators) in addition to traditional (discrete-variable) qubits have recently b...
DQC2O: Distributed Quantum Computing for Collaborative Optimization in Future Networks
Napat Ngoenriang, Minrui Xu, Jiawen Kang +3 more·Sep 16, 2022
With the advantages of high-speed parallel processing, quantum computers can efficiently solve large-scale complex optimization problems in future networks. However, due to the uncertain qubit fidelity and quantum channel noise, distributed quantum c...
Two Quantum Algorithms for Communication between Spacelike Separated Locations
A. Datta·Sep 16, 2022
The `no communication' theorem prohibits superluminal communication by showing that any measurement by Alice on an entangled system cannot change the reduced density matrix of Bob's state, and hence the expectation value of any measurement operator t...
Optimal Stochastic Resource Allocation for Distributed Quantum Computing
Napat Ngoenriang, Minrui Xu, Sucha Supittayapornpong +3 more·Sep 16, 2022
With the advent of interconnected quantum computers, i.e., distributed quantum computing (DQC), multiple quantum computers can now collaborate via quantum networks to perform massively complex computational tasks. However, DQC faces problems sharing ...
Parallel Assembly of Arbitrary Defect-Free Atom Arrays with a Multitweezer Algorithm
Weikun Tian, Wen Jun Wee, A. Qu +4 more·Sep 16, 2022
Defect-free atom arrays are an important precursor for quantum information processing and quantum simulation. Yet, large-scale defect-free atom arrays can be challenging to realize, due to the losses encountered when rearranging stochastically loaded...
Syndrome decoding meets multiple instances
Haoxuan Wu, Jincheng Zhuang·Sep 14, 2022
. The NP-hard problem of decoding random linear codes is crucial to both coding theory and cryptography. In particular, this problem underpins the security of many code based post-quantum cryptographic schemes. The state-of-art algorithms for solving...
High-Purity Entanglement of Hot Propagating Modes Using Nonreciprocity
Lindsay Orr, Saeed A. Khan, Nils Buchholz +2 more·Sep 14, 2022
Distributed quantum information processing and communication protocols demand the ability to generate entanglement among propagating modes. However, thermal fluctuations can severely limit the fidelity and purity of propagating entangled states, espe...
Group-covariant extreme and quasiextreme channels
L. Memarzadeh, B. Sanders·Sep 13, 2022
Constructing all extreme instances of the set of completely positive trace-preserving (CPTP) maps, i.e., quantum channels, is a challenging valuable open problem in quantum information theory. Here we introduce a systematic approach that enables us t...
Optimizing Resource Efficiencies for Scalable Full-Stack Quantum Computers
Marco Fellous-Asiani, J. H. Chai, Y. Thonnart +3 more·Sep 12, 2022
In the race to build scalable quantum computers, minimizing the resource consumption of their full stack to achieve a target performance becomes crucial. It mandates a synergy of fundamental physics and engineering: the former for the microscopic asp...