Quantum Brain

Papers

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

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28,582

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13,634 papers in 12 months (-16% vs prior quarter)

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Hardware platform mentions in abstractsPhotonic leads

28,582 papers found

Inductive Construction of Variational Quantum Circuit for Constrained Combinatorial Optimization

Hyakka Nakada, Kotaro Tanahashi, Shu Tanaka·Jan 7, 2025

In this study, we propose a new method for constrained combinatorial optimization using variational quantum circuits. Quantum computers are considered to have the potential to solve large combinatorial optimization problems faster than classical comp...

PhysicsComputer Science

Quantum neural compressive sensing for ghost imaging

Xinliang Zhai, Tailong Xiao, Jingzheng Huang +2 more·Jan 7, 2025

Demonstrating the utility of quantum algorithms is a long-standing challenge, where quantum machine learning becomes one of the most promising candidate that can be resorted to. In this study, we investigate a quantum neural compressive sensing algor...

Physics

Quantum-Enhanced Conformal Methods for Multi-Output Uncertainty: A Holistic Exploration and Experimental Analysis

Emre Tasar·Jan 7, 2025

In this paper, we propose a unified approach to harness quantum conformal methods for multi-output distributions, with a particular emphasis on two experimental paradigms: (i) a standard 2-qubit circuit scenario producing a four-dimensional outcome d...

PhysicsComputer Science

Quantum simulations of defects near the (0001) surface of $\alpha$-Al$_2$O$_3$

Vijaya Begum-Hudde, Yi-Ting Lee, Barbara A Jones +1 more·Jan 7, 2025

Defects in materials are ubiquitous and one of their adverse effects in $\alpha$-Al$_2$O$_3$ is the initiation of corrosion. While this process starts near the surface, the defects involved and their electronic structure need to be elucidated with hi...

Physics

A Distributed Hybrid Quantum Convolutional Neural Network for Medical Image Classification

Yangyang Li, Zhengya Qi, Yuelin Li +3 more·Jan 7, 2025

Medical images are characterized by intricate and complex features, requiring interpretation by physicians with medical knowledge and experience. Classical neural networks can reduce the workload of physicians, but can only handle these complex featu...

Computer Science

Exact Decoding of Repetition Code under Circuit Level Noise

Han-Yu Cao, Shoukuan Zhao, Dongyang Feng +8 more·Jan 7, 2025

Repetition code forms a fundamental basis for quantum error correction experiments. To date, it stands as the sole code that has achieved large distances and extremely low error rates. Its applications span the spectrum of evaluating hardware limitat...

Physics

Channel Coding based on Skew Polynomials and Multivariate Polynomials

Hedongliang Liu·Jan 7, 2025

This dissertation considers new constructions and decoding approaches for error-correcting codes based on non-conventional polynomials, with the objective of providing new coding solutions to the applications mentioned above. With skew polynomials, w...

Computer ScienceEngineeringMathematics

Deterministic Printing of Single Quantum Dots

Gregory G. Guymon, Hao A. Nguyen, David Sharp +7 more·Jan 7, 2025

The unique optical properties of quantum dots (QDs), size‐tunable emission, and high quantum yield make them ideal candidates for applications in secure quantum communication, quantum computing, targeted single‐cell and molecular tagging, and sensing...

MedicinePhysics

Evolved Quantum Boltzmann Machines

Michele Minervini, Dhrumil Patel, Mark M. Wilde·Jan 6, 2025

We introduce evolved quantum Boltzmann machines as a variational ansatz for quantum optimization and learning tasks. Given two parameterized Hamiltonians $G(θ)$ and $H(φ)$, an evolved quantum Boltzmann machine consists of preparing a thermal state of...

Quantum Physicscond-mat.stat-mech

Estimating shots and variance on noisy quantum circuits

Manav Seksaria, Anil Prabhakar·Jan 6, 2025

We present a method for estimating the number of shots required to achieve a desired variance in the results of a quantum circuit. First, we establish a baseline for single-qubit characterisation of individual noise sources. We then move on to multi-...

Quantum Physicsstat.AP

Encrypted Qubits can be Cloned

Koji Yamaguchi, Achim Kempf·Jan 6, 2025

We show that encrypted cloning of unknown quantum states is possible. Any number of encrypted clones of a qubit can be created through a unitary transformation, and each of the encrypted clones can be decrypted through a unitary transformation. The d...

Quantum Physicsgr-qcMathematical Physics

Characterizing quantum dynamics using multipartite entanglement generation

Gaurav Rudra Malik, Rohit Kumar Shukla, S. Aravinda +1 more·Jan 6, 2025

Entanglement is a defining feature of many-body quantum systems and is an essential requirement for quantum computing. It is therefore useful to study physical processes which generate entanglement within a large system, as they maybe replicated for ...

PhysicsComputer Science

Operating semiconductor qubits without individual barrier gates

A. Ivlev, D. R. Crielaard, M. Meyer +8 more·Jan 6, 2025

Semiconductor spin qubits have emerged as a promising platform for quantum computing, following a significant improvement in their control fidelities over recent years. Increasing the qubit count remains challenging, beginning with the fabrication of...

Physics

Simulation of entanglement based quantum networks for performance characterization

David Pérez-Castro, Juan Fernández-Herrerín, Ana Fernández Vilas +2 more·Jan 6, 2025

Entanglement-based networks (EBNs) enable general-purpose quantum communication by combining entanglement and its swapping in a sequence that addresses the challenges of achieving long distance communication with high fidelity associated with quantum...

Computer Science

Robust Mølmer-Sørensen gate against symmetric and asymmetric errors

Wenhao Zhang, Gaoxiang Tang, Kecheng Liu +4 more·Jan 6, 2025

To achieve the entangling gate fidelity above the quantum error correction threshold, it is critical to suppress errors due to experimental imperfection. We consider the Mølmer-Sørensen gates in trapped-ion systems, and develop a general approach to ...

Physics

Compact superconducting vacuum-gap capacitors with low microwave loss and high mechanical coherence for scalable quantum circuits

A. Youssefi, Mahdi Chegnizadeh, M. Scigliuzzo +1 more·Jan 6, 2025

Vacuum-gap capacitors have recently attracted significant interest in superconducting circuit platforms due to their compact design and exceptionally low dielectric losses in the microwave regime. Their intrinsic ability to support mechanical vibrati...

Physics

Improving Quantum Machine Learning via Heat-Bath Algorithmic Cooling

Nayeli A. Rodr'iguez-Briones, Daniel K Park·Jan 5, 2025

This work introduces an approach rooted in quantum thermodynamics to enhance sampling efficiency in quantum machine learning (QML). We propose conceptualizing quantum supervised learning as a thermodynamic cooling process. Building on this concept, w...

Computer SciencePhysics

Carleman-lattice-Boltzmann quantum circuit with matrix access oracles

Claudio Sanavio, William A. Simon, Alexis Ralli +2 more·Jan 5, 2025

We apply Carleman linearization of the Lattice Boltzmann (CLB) representation of fluid flows to quantum emulate the dynamics of a two-dimensional Kolmogorov-like flow. We assess the accuracy of the result and find a relative error of the order of 10−...

Physics

Linear Optics to Scalable Photonic Quantum Computing

D. D. K. Wayo, L. Goliatt, Darvish Ganji·Jan 5, 2025

Recent advancements in quantum photonics have driven significant progress in photonic quantum computing (PQC), addressing challenges in scalability, efficiency, and fault tolerance. Experimental efforts have focused on integrated photonic platforms u...

Physics

Experimental simulation of postselected closed timelike curves for decoding scrambled quantum information

Yi-Te Huang, Hsiang-Wei Huang, Jhen-Dong Lin +5 more·Jan 4, 2025

Quantum information scrambling (QIS) describes the rapid spread of initially localized information across an entire quantum many-body system through entanglement generation. Once scrambled, the original local information becomes encoded globally, ina...

Quantum Physics
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