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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28,582 papers found

Investigating Parameter-Efficiency of Hybrid QuGANs Based on Geometric Properties of Generated Sea Route Graphs

Tobias Rohe, Florian Burger, Michael Kölle +3 more·Jan 15, 2025

The demand for artificially generated data for the development, training and testing of new algorithms is omnipresent. Quantum computing (QC), does offer the hope that its inherent probabilistic functionality can be utilised in this field of generati...

Computer SciencePhysics

Quantum computation via Floquet tailored Rydberg interactions

Jun-Yi Wu, Jin-Lei Wu, F. Guo +5 more·Jan 15, 2025

Rydberg atoms have stood out as a highly promising platform for realizing quantum computation. Floquet frequency modulation (FFM), in Rydberg atom systems, provides a unique tool for achieving precise quantum control and uncovering exotic physical ph...

Physics

SeQUeNCe GUI: An Extensible User Interface for Discrete Event Quantum Network Simulations

Alexander Kiefer·Jan 15, 2025

With recent advances in the fields of quantum information theory [J. Pablo. Nature 12, 2172 (2021)] and the approach of the Noisy Intermediate-Scale Quantum (NISQ) [J. Preskill. Quantum 2, 79 (2018)] computing era, it is necessary to provide tools fo...

Computer SciencePhysics

Wasserstein distances and divergences of order $p$ by quantum channels

Gergely Bunth, József Pitrik, Tamás Titkos +1 more·Jan 14, 2025

We introduce a non-quadratic generalization of the quantum mechanical optimal transport problem introduced in [De Palma and Trevisan, Ann. Henri Poincaré, {\bf 22} (2021), 3199-3234] where quantum channels realize the transport. Relying on this gener...

Mathematical Physicsmath.OAQuantum Physics

Decoding Quantum LDPC Codes using Collaborative Check Node Removal

Mainak Bhattacharyya, Ankur Raina·Jan 14, 2025

Fault tolerance in quantum protocols requires contributions from error-correcting codes and their suitable decoders. Quantum Low-Density Parity Check (QLDPC) codes are one of the most explored quantum codes that have good coding rate and efficient de...

Quantum Physicscs.IT

Modular Compilation for Quantum Chiplet Architectures

Mingyoung Jessica Jeng, Nikola Vuk Maruszewski, Connor Selna +3 more·Jan 14, 2025

As quantum computing technology matures, industry is adopting modular quantum architectures to keep quantum scaling on the projected path and meet performance targets. However, the complexity of chiplet-based quantum devices, coupled with their growi...

PhysicsComputer Science

Decoherence time of the ground state spin of VB− centers in hexagonal boron nitride

Fatemeh Tarighitabesh, S. Rahimi-Keshari, Mehdi Abdi·Jan 14, 2025

The ground-state spin of optically active defects in hexagonal boron nitride (hBN) offers a promising platform for quantum information applications, such as qubits for quantum computing and nanoscale sensing. A key characteristic of a qubit is its de...

Physics

New Quantum Algorithm for Principal Component Analysis

Nhat A. Nghiem·Jan 14, 2025

Quantum principal component analysis (QPCA) ignited a new development toward quantum machine learning algorithms. Initially showcasing as an active way for analyzing a quantum system using the quantum state itself, QPCA also found potential applicati...

Physics

Adaptive Cybersecurity: Dynamically Retrainable Firewalls for Real-Time Network Protection

Sina Ahmadi·Jan 14, 2025

The growing complexity of cyber attacks has necessitated the evolution of firewall technologies from static models to adaptive, machine learning-driven systems. This research introduces"Dynamically Retrainable Firewalls", which respond to emerging th...

Computer Science

Optimal spatial searches with long-range tunneling

Emma C. King, M. Linnebacher, P. Orth +2 more·Jan 14, 2025

A quantum walk on a lattice is a paradigm of a quantum search in a database. The database qubit strings are the lattice sites, qubit rotations are tunneling events, and the target site is tagged by an energy shift. For quantum walks on a continuous t...

Physics

Exact amplitudes of parametric processes in driven Josephson circuits

Roman Baskov, Daniel K. Weiss, S. Girvin·Jan 14, 2025

We present a general approach for analyzing arbitrary parametric processes in Josephson circuits within a single-degree-of-freedom approximation. Introducing a systematic normal-ordered expansion for the Hamiltonian of parametrically driven supercond...

Physics

A modular quantum gas platform

Tobias Hammel, Maximilian Kaiser, Daniel Dux +3 more·Jan 14, 2025

We report on the development of a modular platform for programmable quantum simulation with atomic quantum gases. The platform is centered around exchangeable optical modules with versatile functionalities. The performance of each module is disentang...

Physics

Improving Student Self-Confidence in Quantum Computing with the Qubit Touchdown Board Game

Kristina Armbruster, G. Dūda, Thomas G. Wong·Jan 14, 2025

Qubit Touchdown is a two-player, competitive board game that was developed to introduce students to quantum computing. A quantum computer is a new kind of computer that is based on the laws of quantum physics, and it can solve certain problems faster...

Physics

The Clifford hierarchy for one qubit or qudit

Nadish de Silva, Oscar Lautsch·Jan 14, 2025

The Clifford hierarchy is a nested sequence of sets of quantum gates that can be fault-tolerantly performed using gate teleportation within standard quantum error correction schemes. The groups of Pauli and Clifford gates constitute the first and s...

PhysicsMathematics

On the distinction between distinguishability of states and witness of non-Markovianity

Vijay Pathak, R. Srikanth·Jan 13, 2025

Non-P-divisibility is the strongest divisibility-based notion of quantum non-Markovianity. The generalized trace distance (GTD) based criterion is known to be an optimal witness of non-P-divisibility of dynamical maps, in the sense that a given map i...

Quantum Physics

Enhancing the sensitivity of single microwave photon detection with bandwidth tunability

Louis Pallegoix, Jaime Travesedo, Alexandre S. May +4 more·Jan 13, 2025

We report on the characteristics of a microwave photon counter device based on a superconducting transmon qubit. Its design is similar to [arXiv:2307.03614], with an additional bandwidth tuning circuit that allows optimizing the device efficiency and...

Quantum Physics

QSteed: A Resource-Virtualized and Hardware-Aware Quantum Compilation Framework for Real Quantum Computing Processors

Hong-Ze Xu, Zheng-An Wang, Yu-Long Feng +11 more·Jan 13, 2025

As quantum computing systems continue to scale up and become more clustered, efficiently compiling user quantum programs into high fidelity executable sequences on real hardware remains a key challenge for current quantum compilation systems. In this...

Quantum Physics

A large-scale reconfigurable multiplexed quantum photonic network

N. H. Valencia, Annameng Ma, Suraj Goel +5 more·Jan 13, 2025

The distribution of entanglement in quantum networks will enable the next generation of technologies in quantum-secured communications, distributed quantum computing and sensing. Future quantum networks will require dense connectivity, allowing multi...

PhysicsMedicine

High-rate extended binomial codes for multiqubit encoding

En-Jui Chang·Jan 13, 2025

We introduce a class of bosonic quantum error-correcting codes, termed \emph{extended binomial codes}, which generalize the structure of one-mode binomial codes by incorporating ideas from high-rate qubit stabilizer codes. These codes are constructed...

Physics

Entanglement-Assisted Quantum Quasi-Cyclic LDPC Codes with Transversal Logical Operators

Pavan Kumar, A. Sharma, S. Garani·Jan 13, 2025

We derive two families of EA-QC quantum LDPC (EA-QC-QLDPC) codes by tiling permutation matrices of prime and composite orders. The unassisted portion of the Tanner graphs corresponding to these codes, constructed from two distinct classical QC-LDPC c...

Computer ScienceMathematics
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