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Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Quantum computing architecture with trapped ion crystals and fast Rydberg gates
Han Bao, J. Vogel, U. Poschinger +1 more·Nov 29, 2024
Fast entangling gate operations are a fundamental prerequisite for quantum simulation and computation. We propose an entangling scheme for arbitrary pairs of ions in a linear crystal, harnessing the high electric polarizability of highly excited Rydb...
qlbm - A quantum lattice Boltzmann software framework
Călin A. Georgescu, Merel A. Schalkers, Matthias Möller·Nov 29, 2024
We present qlbm, a Python software package designed to facilitate the development, simulation, and analysis of Quantum Lattice Boltzmann Methods (QBMs). qlbm is a modular framework that introduces a quantum component abstraction hierarchy tailored to...
Efficient quantum-enhanced classical simulation for patches of quantum landscapes
S. Lerch, Ricard Puig, M. S. Rudolph +5 more·Nov 29, 2024
Understanding the capabilities of classical simulation methods is key to identifying where quantum computers are advantageous. Not only does this ensure that quantum computers are used only where necessary, but also one can potentially identify subro...
Quantum simulation of thermal field theories
Iv'an Cunt'in, Wenyang Qian, Bin Wu·Nov 29, 2024
We present our recent studies on thermal field theories using quantum algorithms. We first delve into the representation of quantum fields via qubits on general digital quantum computers alongside the quantum algorithms employed to evaluate thermal p...
Dephasing-tolerant quantum sensing for transverse magnetic fields with spin qudits
Matteo Mezzadri, L. Lepori, Alessandro Chiesa +1 more·Nov 28, 2024
We propose a dephasing-tolerant protocol for quantum sensing of transverse magnetic fields which exploits spin qudit sensors with embedded fault-tolerant (FT) quantum error correction. By exploiting longitudinal drives, the transverse field induces l...
Quantum computing of chirality imbalance in SU(2) gauge theory
Guofeng Zhang, Xingyu Guo, Enke Wang +1 more·Nov 28, 2024
We implement a variational quantum algorithm to investigate the chiral condensate in a 1+1 dimensional SU(2) non-Abelian gauge theory. The algorithm is evaluated using a proposed Monte Carlo sampling method, which allows the extension to large qubit ...
Concurrent fermionic simulation gate
Zhongyi Jiang, M. H. Ansari·Nov 28, 2024
Introducing flexible native entanglement gates can significantly reduce circuit complexity. We propose a gate integrating i and operations within a single gate cycle. We theoretically show one possible realization of this gate for superconducting qub...
Optimising Iteration Scheduling for Full-State Vector Simulation of Quantum Circuits on FPGAs
Youssef Moawad, Andrew Brown, René Steijl +1 more·Nov 27, 2024
As the field of quantum computing grows, novel algorithms which take advantage of quantum phenomena need to be developed. As we are currently in the NISQ (noisy intermediate scale quantum) era, quantum algorithm researchers cannot reliably test their...
Simulating Vibrational Dynamics on Bosonic Quantum Devices.
Shreyas Malpathak, Sangeeth Das Kallullathil, A. Izmaylov·Nov 27, 2024
Bosonic quantum devices, which utilize harmonic oscillator modes to encode information, are emerging as a promising alternative to conventional qubit-based quantum devices, especially for the simulation of vibrational dynamics and spectroscopy. We pr...
Quantum simulation of the Sachdev-Ye-Kitaev model using time-dependent disorder in optical cavities
Rahel Baumgartner, Pietro Pelliconi, Soumik Bandyopadhyay +5 more·Nov 26, 2024
The Sachdev--Ye--Kitaev (SYK) model is a paradigm for extreme quantum chaos, non-Fermi-liquid behavior, and holographic matter. Yet, the dense random all-to-all interactions that characterize it are an extreme challenge for realistic laboratory reali...
High-Level Surface Code Decoding via Parallel FFNNs on CIM Platforms
Hao Wang, Erjia Xiao, Wenbo Mu +9 more·Nov 26, 2024
Due to the high sensitivity of qubits to environmental noise, which leads to decoherence and information loss, active quantum error correction(QEC) is essential. Surface codes represent one of the most promising fault-tolerant QEC schemes, but they r...
An improved quantum algorithm of the multislice method
Yucheng Wang, Yang Sun, Z. Ding·Nov 26, 2024
Summary The multislice method is an important algorithm for electron diffraction and image simulations in transmission electron microscopy (TEM). We have proposed a quantum algorithm of the multislice method based on quantum circuit model previously....
Quantum Wave Simulation with Sources and Loss Functions
Cyrill Bosch, Malte Schade, Giacomo Aloisi +2 more·Nov 26, 2024
We present a quantum algorithmic framework for simulating linear, anti-Hermitian (lossless) wave equations in heterogeneous, anisotropic, and time-independent media. This framework encompasses a broad class of wave equations, including the acoustic w...
Toward a Quantum Computing Formulation of the Electron Nuclear Dynamics Method via Fukutome Unitary Representation
Juan C. Dom'inguez, Ismael de Farias, Jorge A. Morales·Nov 26, 2024
We present the first installment of the quantum computing (QC) formulation of the electron nuclear dynamics (END) method within the variational quantum simulator (VQS) scheme: END/QC/VQS. END is a time-dependent, variational, on-the-flight, and non-a...
Measuring entanglement without local addressing in quantum many-body simulators via spiral quantum state tomography
Giacomo Marmorini, Takeshi Fukuhara, Daisuke Yamamoto·Nov 25, 2024
Quantum state tomography serves as a key tool for identifying quantum states generated in quantum computers and simulators, typically involving local operations on individual particles or qubits to enable independent measurements. However, this appro...
Understanding the Scalability of Circuit Cutting Techniques for Practical Quantum Applications
Songqinghao Yang, Prakash Murali·Nov 25, 2024
Circuit cutting allows quantum circuits larger than the available hardware to be executed. Cutting techniques split circuits into smaller subcircuits, run them on the hardware, and recombine results through classical post-processing. Circuit cutting ...
Divergence-free algorithms for solving nonlinear differential equations on quantum computers
Katsuhiro Endo, Kazuaki Z. Takahashi·Nov 25, 2024
From weather to neural networks, modeling is not only useful for understanding various phenomena, but also has a wide range of potential applications. Although nonlinear differential equations are extremely useful tools in modeling, their solutions a...
A Review of Design Concerns in Superconducting Quantum Circuits
Eli M. Levenson-Falk, S. Shanto·Nov 25, 2024
In this short review we describe the process of designing a superconducting circuit device for quantum information applications. We discuss the factors that must be considered to implement a desired effective Hamiltonian on a device. We describe th...
Boundaries for quantum advantage with single photons and loop-based time-bin interferometers
Samo Nov'ak, David D. Roberts, Alexander Makarovskiy +2 more·Nov 25, 2024
Loop-based boson samplers interfere photons in the time degree of freedom using a sequence of delay lines. Since they require few hardware components while also allowing for long-range entanglement, they are strong candidates for demonstrating quantu...
ShaNQar: Simulator of Network Quantique
Anand Choudhary, A. Wasan·Nov 24, 2024
The nature-inspired field of quantum communication has witnessed exciting developments over the past few years with countries all over the world working hard to scale their experimental quantum networks to larger sizes and increased coverage. Evident...