Quantum Brain

Papers

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

Total Papers

26,974

This Month

563

Today

0

Research Volume

12,533 papers in 12 months (-16% vs prior quarter)

Research Focus Areas

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

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

5,055 papers found

Error-Mitigated Hamiltonian Simulation: Complexity Analysis and Optimization for Near-Term and Early-Fault-Tolerant Quantum Computers

Keisuke Murota, Synge Todo, Suguru Endo·Mar 12, 2026

Simulating real-time dynamics under a Hamiltonian is a central goal of quantum information science. While numerous Hamiltonian-simulation quantum algorithms have been proposed, the effects of physical noise have rarely been incorporated into performa...

Quantum Physics

Quantum photonic frequency processor on thin-film lithium niobate

Ran Yang, Wei Zhou, Dong-Jie Guo +11 more·Mar 12, 2026

The rapid development of photonic quantum information processing necessitates precise and programmable control over optical frequency, a capability critical not only for achieving photon indistinguishability but also for exploiting a virtually unboun...

Quantum Physicsphysics.optics

Diving into booklet wormholes

Libo Jiang, Yan Liu·Mar 12, 2026

ArXiv:2508.17898 proposed the booklet wormhole as the holographic dual of the GHZ state. This paper extends the investigation into this geometry, particularly focusing on the junction conditions for matter fields. We show that the symmetry of the GHZ...

hep-thgr-qcQuantum Physics

Generalized Reduced-Density-Matrix Quantum Monte Carlo Gives Access to More

Zhiyan Wang, Zhe Wang, Bin-Bin Mao +1 more·Mar 11, 2026

For a long time, people have been focusing on how to extract more information, such as off-diagonal observables, from the quantum Monte Carlo (QMC) simulation of the partition function, but there have been numerous difficulties, and many of them are ...

cond-mat.str-elcond-mat.stat-mechphysics.comp-phQuantum Physics

Quantum Hypergraph States: A Review

Davide Poderini, Dagmar Bruß, Chiara Macchiavello·Mar 11, 2026

Quantum hypergraph states extend the well-studied class of graph states by taking into account multi-qubit interactions through hyperedges. They provide a powerful framework to represent a family of quantum states with genuine multipartite entangleme...

Quantum Physics

Entanglement distillation based on Hamiltonian dynamics

Zitai Xu, Guoding Liu·Mar 11, 2026

Efficient entanglement distillation is a central task in quantum information science and future quantum networks. At the core of distillation protocols are the quantum error correction and detection schemes which enhance the fidelity of entangled pai...

Quantum Physics

Probing the ergodicity breaking transition via violations of random matrix theoretic predictions for local observables

Venelin P. Pavlov, Peter A. Ivanov, Diego Porras +1 more·Mar 11, 2026

Quantum many-body systems can exhibit distinct regimes where dynamics is either ergodic, dynamically exploring an extensive region of available state-space, or non-ergodic, where the dynamics may be restricted. An example is the many-body localizatio...

Quantum Physicscond-mat.dis-nncond-mat.stat-mech

Self-testing with untrusted random number generators

Moisés Bermejo Morán, Ravishankar Ramanathan·Mar 11, 2026

Self-testing--the attractive possibility to infer the underlying physics of a quantum device in a black-box scenario--has gained increased traction in recent years, with applications to device-independent quantum information processing. Thus far, sel...

Quantum Physics

Fundamental Limits of Non-Hermitian Sensing from Quantum Fisher Information

Jan Wiersig, Stefan Rotter·Mar 11, 2026

Exceptional points (EPs) exhibit strongly enhanced spectral responses and are therefore promising candidates for sensing applications. Whether these non-Hermitian degeneracies provide a genuine advantage in the quantum regime has been the subject of ...

Quantum Physicsphysics.optics

Optical quantum teleportation with known amplitude distorting factors of teleported qubits

Mikhail S. Podoshvedov, Sergey A. Podoshvedov·Mar 11, 2026

We develop a quantum teleportation protocol of an unknown optical single rail qubit using a hybrid quantum channel composed of continuous variable (CV) states of certain parity. The quantum channel is characterized by two parameters: a squeezing para...

Quantum Physics

Temporal-Mode Engineering for Multiplexed Microwave Photons and Mode-Selective Quantum State Transfer

Keika Sunada, Takeaki Miyamura, Kohei Matsuura +4 more·Mar 11, 2026

Quantum communication between distant superconducting qubits on separate chips using itinerant microwave photons has been studied to realize distributed quantum information processing. To enhance information capacity and fault tolerance in quantum ne...

Quantum Physics

Remote engineering of particle-like topologies to visualise entanglement dynamics

Fazilah Nothlawala, Bereneice Sephton, Pedro Ornelas +6 more·Mar 11, 2026

Skyrmions are a particle-like topology with a quantised skyrmion number, realised across condensed matter and photonic platforms alike. In quantum photonics, they constitute an emerging resource, promising robust quantum information encoding, so far ...

Quantum Physicsphysics.optics

Practical Methods for Distance-Adaptive Continuous-Variable Quantum Key Distribution

Jonas Berl, Utku Akin, Erdem Eray Cil +2 more·Mar 11, 2026

Continuous-variable quantum key distribution (CV-QKD) is a promising quantum-safe alternative to classical asymmetric cryptography that enables two authenticated parties to establish a shared secret over a potentially eavesdropped quantum channel. A ...

Quantum Physics

Geo-ADAPT-VQE: Quantum Information Metric-Aware Circuit Optimization for Quantum Chemistry

Mohammad Aamir Sohail, Toshiaki Koike-Akino·Mar 11, 2026

Adaptive ansatz construction has emerged as a powerful technique for reducing circuit depth and improving optimization efficiency in variational quantum eigensolvers. However, existing adaptive methods, including ADAPT-VQE, rely solely on first-order...

Quantum Physicseess.SPmath.NAphysics.chem-ph

Learning from Radio using Variational Quantum RF Sensing

Ivana Nikoloska·Mar 10, 2026

In modern wireless networks, radio channels serve a dual role. Whilst their primary function is to carry bits of information from a transmitter to a receiver, the intrinsic sensitivity of transmitted signals to the physical structure of the environme...

Quantum PhysicsAIcs.ITeess.SP

Hysteretic squashed entanglement in many-body quantum systems

Siddhartha Das, Alexander Yosifov, Jinzhao Sun·Mar 10, 2026

Entanglement in many-body quantum systems is distributed across spatial regions, where its structure often dictates the information-processing capabilities of the state. Yet, characterizing the entanglement structure, especially for mixed states, rem...

Quantum PhysicsMathematical Physics

Operational bounds and diagnostics for coherence in energy transfer

Julia Liebert, Gregory D. Scholes·Mar 10, 2026

Excitation energy transfer in light-harvesting aggregates is highly efficient, yet whether quantum coherence plays an operational role in transport remains debated. A central challenge is that coherence is usually inferred from spectroscopic signatur...

Quantum Physicsphysics.chem-ph

Temporal limitations and digital data processing in continuous variable measurements of non-Gaussian states

Antoine Petitjean, Anthony Martin, Mohamed F. Melalkia +6 more·Mar 10, 2026

Non-Gaussian quantum states and operations are essential tools for multiple quantum information protocols exploiting light as information career. In this context, a key role is played by schemes operating with continuous wave light, in which non-Gaus...

Quantum Physics

Noise Models Impacts and Mitigation Strategies in Photonic Quantum Machine Learning

A. M. A. S. D. Alagiyawanna, Asoka Karunananda·Mar 10, 2026

Photonic Quantum Machine Learning (PQML) is an emerging method to implement scalable, energy-efficient quantum information processing by combining photonic quantum computing technologies with machine learning techniques. The features of photonic tech...

Quantum Physicscs.LG

Chip-Integrated Broadband Multi-Photon Source for Wavelength-Multiplexed Quantum Networks

Xiao-Xu Fang, Ling-Xuan Kong, He Lu·Mar 10, 2026

Quantum networks based on wavelength-multiplexed entanglement enable parallel distribution of quantum correlations, increasing channel capacity for secure communication and distributed quantum information processing. However, broadband integrated sou...

Quantum Physics
Quantum Intelligence

Ask about quantum research, companies, or market developments.