Quantum Brain

Papers

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

Total Papers

28,250

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22

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0

Research Volume

13,393 papers in 12 months (-22% vs prior quarter)

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

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28,250 papers found

Quantification of the energy consumption of entanglement distribution

K. Horodecki, Marek Winczewski, Leonard Sikorski +3 more·Jul 30, 2025

Inspired by environmental sciences, we develop a framework to quantify the energy needed to generate quantum entanglement via noisy quantum channels, focusing on the hardware-independent, i.e. fundamental cost. Within this framework, we define a meas...

Physics

Enhanced Prediction of CAR T-Cell Cytotoxicity with Quantum-Kernel Methods

F. Utro, Meltem Tolunay, Kahn Rhrissorrakrai +6 more·Jul 30, 2025

Chimeric antigen receptor (CAR) T-cells are T-cells engineered to recognize and kill specific tumor cells. Through their extracellular domains, CAR T-cells bind tumor cell antigens which triggers CAR T activation and proliferation. These processes ar...

Computer ScienceBiologyPhysics

On the Simulation of Conical Intersections in Water and Methanimine Molecules Via Variational Quantum Algorithms

Samir Belaloui, N. Belaloui, Achour Benslama·Jul 30, 2025

We investigate the electronic structure of methanimine (CH2NH) and water (H2O) molecules in an effort to locate conical intersections (CIs) using variational quantum algorithms. Our approach implements and compares a range of hybrid quantum-classical...

Physics

Hybrid Quantum Classical Surrogate for Real Time Inverse Finite Element Modeling in Digital Twins

A. Alavi, Sanduni Jayasinghe, M. Mahmoodian +3 more·Jul 30, 2025

Large-scale civil structures, such as bridges, pipelines, and offshore platforms, are vital to modern infrastructure, where unexpected failures can cause significant economic and safety repercussions. Although finite element (FE) modeling is widely u...

PhysicsComputer Science

Measurement-induced cubic phase state generation

Harsh Kashyap, Denis A. Kopylov, Polina R. Sharapova·Jul 29, 2025

The cubic phase state constitutes a nonlinear resource that is essential for universal quantum computing protocols. However, constructing such non-classical states faces many challenges. In this work, we present a protocol for generating a cubic phas...

Quantum Physics

Complexity in multi-qubit and many-body systems

Imre Varga·Jul 29, 2025

Characterizing complexity and criticality in quantum systems requires diagnostics that are both computationally tractable and physically insightful. We apply a measure of quantum state complexity for n-qubit systems, defined as the divergence between...

Quantum Physicscond-mat.dis-nncond-mat.str-el

Analysis of Quantum Image Representations for Supervised Classification

Marco Parigi, Mehran Khosrojerdi, Filippo Caruso +1 more·Jul 29, 2025

In the era of big data and artificial intelligence, the increasing volume of data and the demand to solve more and more complex computational challenges are two driving forces for improving the efficiency of data storage, processing and analysis. Qua...

Quantum PhysicsAIcs.CVcs.LG

Sampling (noisy) quantum circuits through randomized rounding

Victor Martinez, Omar Fawzi, Daniel Stilck França·Jul 29, 2025

The present era of quantum processors with hundreds to thousands of noisy qubits has sparked interest in understanding the computational power of these devices and how to leverage it to solve practically relevant problems. For applications that requi...

Quantum Physics

Prime Factorization Equation from a Tensor Network Perspective

Alejandro Mata Ali, Jorge Martínez Martín, Sergio Muñiz Subiñas +3 more·Jul 29, 2025

This paper presents an exact and explicit tensor-network equation for the search of nontrivial divisors of a composite integer, together with an algorithm for its computation. The proposed method is based on the MeLoCoToN approach, which addresses co...

math.OCCryptographyphysics.comp-phQuantum Physics

Complete Positivity of Subsystems in Quantum Dynamics

Anumita Mukhopadhyay, Praggnyamita Ghosh, Shibdas Roy·Jul 29, 2025

Although many quantum channels satisfy Completely Positive Trace Preserving (CPTP) condition, there are valid quantum channels that can be non-completely positive (NCP). As memory effects can provide advantages in the dynamics of noisy quantum system...

Quantum Physics

Dynamics of a Mobile Ion in a Bose-Einstein Condensate

Piotr Wysocki, Marek Tylutki, Krzysztof Jachymski·Jul 29, 2025

Characterization of the dynamics of an impurity immersed in a quantum medium is vital for fundamental understanding of matter as well as applications in modern day quantum technologies. The case of strong and long-ranged interactions is of particular...

cond-mat.quant-gasQuantum Physics

Structured quantum learning via em algorithm for Boltzmann machines

Takeshi Kimura, Kohtaro Kato, Masahito Hayashi·Jul 29, 2025

Quantum Boltzmann machines (QBMs) are generative models with potential advantages in quantum machine learning, yet their training is fundamentally limited by the barren plateau problem, where gradients vanish exponentially with system size. We introd...

Quantum Physicscs.LG

Security loophole in error verification in quantum key distribution

T. Tsurumaru, Akihiro Mizutani, Toshihiko Sasaki·Jul 29, 2025

The security of quantum key distribution (QKD) is evaluated based on the secrecy of Alice's key and the correctness of the keys held by Alice and Bob. A practical method for ensuring correctness is known as error verification, in which Alice and Bob ...

Physics

Quantum Solvers: Predictive Aeroacoustic&Aerodynamic modeling

Nis-Luca van Hulst, Theofanis Panagos, Greta Sophie Reese +2 more·Jul 29, 2025

This technical report presents our winning contribution to the 2024 Airbus and BMW Group Quantum Computing Challenge under the category'Quantum Solvers'. This submission addresses efficient simulation in industrial CFD using (i) quantum-inspired algo...

Physics

Evaluation of Noise and Crosstalk in Neutral Atom Quantum Computers

Pranet Sharma, Yizhuo Tan, K. Papadopoulos +1 more·Jul 29, 2025

This work explores and evaluates noise and crosstalk in neutral atom quantum computers. Neutral atom quantum computers are a promising platform for analog Hamiltonian simulations, which rely on a sequence of time-dependent Hamiltonians to model the d...

Computer SciencePhysics

Data-driven quantum Koopman method for simulating nonlinear dynamics

Baoyang Zhang, Zhen Lu, Yaomin Zhao +1 more·Jul 29, 2025

Quantum computation offers potential exponential speedups for simulating certain physical systems, but its application to nonlinear dynamics is inherently constrained by the requirement of unitary evolution. We propose the quantum Koopman method (QKM...

PhysicsComputer Science

Protected quantum gates using qubit doublons in dynamical optical lattices

Yann Kiefer, Zijie Zhu, Lars Fischer +5 more·Jul 29, 2025

Quantum computing represents a central challenge in modern science. Neutral atoms in optical lattices have emerged as a leading computing platform, with collisional gates offering a stable mechanism for quantum logic. However, previous experiments ha...

Physics

Static and Dynamical Characterization of Ground State Phases Induced by Frustration and Magnetic Field in the Spin-1 Orthogonal Dimer Chain

E. Ong, D. Bhowmick, Sharoz Schezwen +1 more·Jul 29, 2025

The spin-$1$ orthogonal dimer chain is investigated using the Density Matrix Renormalization Group (DMRG) algorithm. A transformation to a basis that uses the local eigenstates of the orthogonal dimers, while retaining the local spin states for the p...

Physics

Quantum generative modeling for financial time series with temporal correlations

David Dechant, Eliot Schwander, Lucas van Drooge +4 more·Jul 29, 2025

Quantum generative adversarial networks (QGANs) have been investigated as a method for generating synthetic data with the goal of augmenting training data sets for neural networks. This is especially relevant for financial time series, since we only ...

PhysicsEconomics

Pitfalls when tackling the exponential concentration of parameterized quantum models

Reyhaneh Aghaei Saem, Behrang Tafreshi, Zoe Holmes +1 more·Jul 29, 2025

Identifying scalable circuit architectures remains a central challenge in variational quantum computing and quantum machine learning. Many approaches have been proposed to mitigate or avoid the barren plateau phenomenon or, more broadly, exponential ...

Physics
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