Quantum Brain

Papers

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

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31,132

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15,326 papers in 12 months (-9% vs prior quarter)

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31,132 papers found

Resource Estimation of Quantum Multiplication Algorithms

Ethan Hansen, Sanskriti Joshi, Hannah Rarick·Sep 17, 2023

As quantum computers progress towards a larger scale, it is imperative that the “top” of the computing-technology stack is improved. This project investigates the quantum resources required to compute primitive arithmetic algorithms, particularly mul...

PhysicsComputer Science

Transversal Injection: Using the Surface Code to Prepare Non-Pauli Eigenstates

J. Gavriel, Daniel Herr, Alexis Shaw +3 more·Sep 17, 2023

The development of quantum computing systems for large scale algorithms requires targeted error rates un-achievable through hardware advancements alone. Quantum Error Correction (QEC) allows us to use systems with a large number of physical qubits to...

Computer SciencePhysics

Approximately Equivariant Quantum Neural Network for p4m Group Symmetries in Images

Su Yeon Chang, M. Grossi, B. L. Saux +1 more·Sep 17, 2023

Quantum Neural Networks (QNNs) are suggested as one of the quantum algorithms which can be efficiently simulated with a low depth on near-term quantum hardware in the presence of noises. However, their performance highly relies on choosing the most s...

PhysicsComputer Science

Experimental Demonstration of Fermionic QAOA with One-Dimensional Cyclic Driver Hamiltonian

Takuya Yoshioka, Keita Sasada, Yuichiro Nakano +1 more·Sep 17, 2023

Quantum approximate optimization algorithm (QAOA) has attracted much attention as an algorithm that has the potential to efficiently solve combinatorial optimization problems. Among them, a fermionic QAOA (FQAOA) for solving constrained optimization ...

PhysicsComputer Science

Optimal number-conserved linear encoding for practical fermionic simulation

M. H. Cheng, Yu-Cheng Chen, Qian Wang +5 more·Sep 17, 2023

Number-conserved subspace encoding reduces resources needed for quantum simulations, but scalable complexity trade-off bounds for M modes and N particles with O(NlogM) qubits have remained unknown. We study qubit-gate-measurement trade-offs through t...

Physics

Towards Distributed Quantum Computing by Qubit and Gate Graph Partitioning Techniques

M. Davis, Joaquín Chung, Dirk R. Englund +1 more·Sep 17, 2023

Distributed quantum computing is motivated by the difficulty in building large-scale, individual quantum computers. To solve that problem, a large quantum circuit is partitioned and distributed to small quantum computers for execution. Partitions run...

PhysicsComputer Science

"Smoking gun"signatures of topological milestones in trivial materials by measurement fine-tuning and data postselection

S. M. Frolov, P. Zhang, B. Zhang +9 more·Sep 17, 2023

Exploring the topology of electronic bands is a way to realize new states of matter with possible implications for information technology. Because bands cannot always be observed directly, a central question is how to tell that a topological regime h...

Physics

Quantum Circuit Optimization through Iteratively Pre-Conditioned Gradient Descent

Dhruv Srinivasan, Kushal Chakrabarti, Nikhil Chopra +1 more·Sep 17, 2023

Gate-based quantum algorithms are typically implemented by circuits consisting of many single-qubit and multi-qubit gates operating on a quantum input state, followed by measurements of the output state. For certain quantum subroutines, such as initi...

Computer SciencePhysics

Red Teaming Generative AI/NLP, the BB84 quantum cryptography protocol and the NIST-approved Quantum-Resistant Cryptographic Algorithms

P. Radanliev, D. D. Roure, Omar Santos·Sep 17, 2023

In the contemporary digital age, Quantum Computing and Artificial Intelligence (AI) convergence is reshaping the cyber landscape, introducing unprecedented opportunities and potential vulnerabilities.This research, conducted over five years, delves i...

Computer Science

Differentiable Quantum Architecture Search for Quantum Reinforcement Learning

Yize Sun, Yunpu Ma, Volker Tresp·Sep 17, 2023

Differentiable quantum architecture search (DQAS) is a gradient-based framework to design quantum circuits automatically in the NISQ era. It was motivated by such as low fidelity of quantum hardware, low flexibility of circuit architecture, high circ...

PhysicsComputer Science

Hybrid Quantum Machine Learning Assisted Classification of COVID-19 from Computed Tomography Scans

Leo Sünkel, Darya Martyniuk, Julia J. Reichwald +5 more·Sep 17, 2023

Practical quantum computing (QC) is still in its in-fancy and problems considered are usually fairly small, especially in quantum machine learning when compared to its classical counterpart. Image processing applications in particular require models ...

PhysicsEngineeringComputer Science

Optimistic Entanglement Purification in Quantum Networks

Mohammad Mobayenjarihani, Gayane Vardoyan, Donald F. Towsley·Sep 17, 2023

Noise and photon loss encountered on quantum channels pose a major challenge for reliable entanglement generation in quantum networks. In near-term networks, heralding is required to inform endpoints of successfully generated entanglement. If after h...

Computer SciencePhysics

Quantum Simulations for Carbon Capture on Metal-Organic Frameworks

Gopal Ramesh Dahale·Sep 17, 2023

Direct air capture of Carbon Dioxide is a technical solution that does not rely on natural processes to capture CO2 from the atmosphere. In DAC, the filter material is designed to specifically bind CO2 molecules. Hence a high-capacity filter is sough...

Computer SciencePhysics

Computational capabilities and compiler development for neutral atom quantum processors—connecting tool developers and hardware experts

Ludwig Schmid, David F. Locher, M. Rispler +4 more·Sep 15, 2023

Neutral Atom Quantum Computing (NAQC) emerges as a promising hardware platform primarily due to its long coherence times and scalability. Additionally, NAQC offers computational advantages encompassing potential long-range connectivity, native multi-...

PhysicsComputer Science

Quantum Machine Learning in the Cognitive Domain: Alzheimer's Disease Study

Emine Akpinar·Sep 15, 2023

Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, primarily affecting the elderly population and leading to significant cognitive decline. This decline manifests in various mental faculties such as attention, memory, and high...

Computer SciencePhysics

Physics of the Majorana superconducting qubit hybrids

D. Karki, K. A. Matveev, Ivar Martin·Sep 15, 2023

Manipulation of decoupled Majorana zero modes (MZMs) could enable topologically-protected quantum computing. However, the practical realization of a large number of perfectly decoupled MZMs needed to perform nontrivial quantum computation has proven ...

Physics

Implementing fault-tolerant non-Clifford gates using the [[8,3,2]] color code

Daniel Honciuc Menendez, A. Ray, M. Vasmer·Sep 15, 2023

Quantum computers promise to solve problems that are intractable for classical computers, but qubits are vulnerable to many sources of error, limiting the depth of the circuits that can be reliably executed on today's quantum hardware. Quantum error ...

Physics

S-QGPU: Shared quantum gate processing unit for distributed quantum computing

Shengwang Du, Yufei Ding, Chunming Qiao·Sep 15, 2023

We propose a distributed quantum computing (DQC) architecture in which individual small-sized quantum computers are connected to a shared quantum gate processing unit (S-QGPU). The S-QGPU comprises a collection of hybrid two-qubit gate modules for re...

Physics

Postprocessing Variationally Scheduled Quantum Algorithm for Constrained Combinatorial Optimization Problems

T. Shirai, N. Togawa·Sep 15, 2023

In this article, we propose a postprocessing variationally scheduled quantum algorithm (pVSQA) for solving constrained combinatorial optimization problems (COPs). COPs are typically transformed into ground-state search problems of the Ising model on ...

Physics

Benchmarking machine learning models for quantum state classification

Edoardo Pedicillo, Andrea Pasquale, S. Carrazza·Sep 14, 2023

Quantum computing is a growing field where the information is processed by two-levels quantum states known as qubits. Current physical realizations of qubits require a careful calibration, composed by different experiments, due to noise and decoheren...

PhysicsComputer Science
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