Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

Total Papers

31,204

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1,213

Today

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Research Volume

15,359 papers in 12 months (-8% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

31,204 papers found

Still Unsolved High-Performance Computing Challenges for up to Pre-Petascale Homogeneous Supercomputers

M. Mačernis, Vaidotas Mickus, J. Ahonen +3 more·Oct 3, 2022

: Pre-exascale High Performance Computers (HPC) can reach more than 400 Pflop/s real performance according the HPLinpack benchmarks. For nanoscience and quantum biology there are requirements for those program codes based on quantum physics algorithm...

Computer SciencePhysics

Quantum error mitigation

Z. Cai, R. Babbush, S. Benjamin +5 more·Oct 3, 2022

For quantum computers to successfully solve real-world problems, it is necessary to tackle the challenge of noise: the errors which occur in elementary physical components due to unwanted or imperfect interactions. The theory of quantum fault toleran...

Physics

Incompatibility of optimized protection of entanglement and teleportation fdelity in the presence of decoherence

Priyanka Chowdhury·Oct 1, 2022

Entanglement is the key success of teleporting an unknown quantum state with fidelity higher than classical limit. In the presence of decoherence, entanglement decreases with the strength of interaction between quantum systems and the environment. As...

Quantum Physics

Efficient Quantum Agnostic Improper Learning of Decision Trees

Debajyoti Bera, Sagnik Chatterjee·Oct 1, 2022

The agnostic setting is the hardest generalization of the PAC model since it is akin to learning with adversarial noise. In this paper, we give a poly$(n,t,{\frac{1}{\varepsilon}})$ quantum algorithm for learning size $t$ decision trees with uniform ...

Computer SciencePhysics

RF simulation platform of qubit control using FDSOI technology for quantum computing

H. Jacquinot, R. Maurand, G. T. F. Bada +10 more·Oct 1, 2022

In this paper, we report on simulations of an Electron Spin Resonance (ESR) RF control line for semiconductor electron spin qubits. The simulation includes both the ESR line characteristics (geometry and configuration, stack and material properties) ...

Physics

Efficient solutions of fermionic systems using artificial neural networks

E. Nordhagen, Jane M. Kim, Bryce Fore +2 more·Oct 1, 2022

In this study, we explore the similarities and differences between variational Monte Carlo techniques that employ conventional and artificial neural network representations of the ground-state wave function for fermionic systems. Our primary focus is...

Physics

Q3DE: A fault-tolerant quantum computer architecture for multi-bit burst errors by cosmic rays

Yasunari Suzuki, T. Sugiyama, T. Arai +3 more·Oct 1, 2022

Demonstrating small error rates by integrating quantum error correction (QEC) into an architecture of quantum computing is the next milestone towards scalable fault-tolerant quantum computing (FTQC). Encoding logical qubits with superconducting qubit...

Computer SciencePhysics

Scaling Superconducting Quantum Computers with Chiplet Architectures

Kaitlin N. Smith, Gokul Subramanian Ravi, Jonathan M. Baker +1 more·Oct 1, 2022

Fixed-frequency transmon quantum computers (QCs) have advanced in coherence times, addressability, and gate fidelities. Unfortunately, these devices are restricted by the number of on-chip qubits, capping processing power and slowing progress toward ...

Computer SciencePhysics

Unbiased quantum phase estimation

Xi Lu, Hongfei Lin·Oct 1, 2022

Quantum phase estimation algorithm (PEA) is one of the most important algorithms in early studies of quantum computation. However, we find that the PEA is not an unbiased estimation, which prevents the estimation error from achieving an arbitrarily s...

Computer SciencePhysics

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...

Computer SciencePhysics

Quantum median filter for total variation image denoising

Simone De Santis, D. Lazzaro, R. Mengoni +1 more·Sep 30, 2022

In this new computing paradigm, named quantum computing, researchers from all over the world are taking their first steps in designing quantum circuits for image processing, through a difficult process of knowledge transfer. This effort is named quan...

Computer SciencePhysics

Quantum Fourier Addition, Simplified to Toffoli Addition

A. Paler·Sep 30, 2022

Quantum addition circuits are considered being of two types: 1) Toffolli-adder circuits which use only classical reversible gates (CNOT and Toffoli), and 2) QFT-adder circuits based on the quantum Fourier transformation. We present the first systemat...

Computer SciencePhysics

Design and Analysis of Digital Communication Within an SoC-Based Control System for Trapped-Ion Quantum Computing

Nafis Irtija, J. Plusquellic, E. Tsiropoulou +3 more·Sep 30, 2022

Electronic control systems used for quantum computing have become increasingly complex as multiple qubit technologies employ larger numbers of qubits with higher fidelity target. Whereas the control systems for different technologies share some simil...

Computer SciencePhysics

Suppressing Quantum Circuit Errors Due to System Variability

P. Nation, Matthew Treinish·Sep 30, 2022

We present a quantum circuit optimization technique that takes into account the variability in error rates that is inherent across present day noisy quantum computing platforms. This method can be run post qubit routing or post-compilation, and consi...

Physics

Strings And Colorings Of Topological Coding Towards Asymmetric Topology Cryptography

Bing Yao, Chao Yang, Xia Liu +5 more·Sep 30, 2022

We, for anti-quantum computing, will discuss various number-based strings, such as number-based super-strings, parameterized strings, set-based strings, graph-based strings, integer-partitioned and integer-decomposed strings, Hanzi-based strings, as ...

Computer ScienceMathematics

Self-Tuning Transmitter for Quantum Key Distribution Using Machine Intelligence

Y. Lo, R. Woodward, T. Roger +5 more·Sep 30, 2022

The development and performance of quantum technologies heavily relies on the properties of the quantum states, which often require careful optimization of the driving conditions of all underlying components. In quantum key distribution (QKD), optica...

Physics

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...

PhysicsComputer Science

Quantum invariants for the graph isomorphism problem

Hernandez Cruz, F. Pelayo, V. Pascual +4 more·Sep 29, 2022

Graph Isomorphism is such an important problem in computer science, that it has been widely studied over the last decades. It is well known that it belongs to NP class, but is not NP-complete. It is thought to be of comparable difficulty to integer f...

Computer Science

Completeness of the ZX-calculus

Quanlong Wang·Sep 29, 2022

The ZX-calculus is an intuitive but also mathematically strict graphical language for quantum computing, which is especially powerful for the framework of quantum circuits. Completeness of the ZX-calculus means any equality of matrices with size powe...

MathematicsPhysicsComputer Science

Constrained optimization via quantum Zeno dynamics

Dylan Herman, Ruslan Shaydulin, Yue Sun +6 more·Sep 29, 2022

The paper presents an approach for solving optimization problems with multiple arbitrary constraints on quantum computers by combining quantum Zeno dynamics with common quantum optimization algorithms like QAOA. The number of Zeno measurements requir...

Physics
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