Quantum Brain

Papers

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

Total Papers

28,891

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551

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13,881 papers in 12 months (-10% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

28,891 papers found

Integrating Quantum Algorithms with Gravitational-Wave Metrology for Enhanced Signal Detection

Vaidik A. Sharma·Jun 8, 2024

This study explores the integration of quantum algorithms, specifically Grover's algorithm, with quantum metrology to enhance the efficiency and sensitivity of gravitational-wave detection. By combining quantum matched filtering with precise paramete...

Physics

Efficient Hamiltonian encoding algorithms for extracting quantum control mechanism as interfering pathway amplitudes in the Dyson series

Erez Abrams, Michael Kasprzak, Gaurav Bhole +2 more·Jun 8, 2024

Hamiltonian encoding is a methodology for revealing the mechanism behind the dynamics governing controlled quantum systems. In this paper, following Mitra and Rabitz \cite{abhra_1}, we define mechanism via pathways of eigenstates that describe the ev...

PhysicsComputer Science

Quantum Nuclear Dynamics on a Distributed Set of Ion-Trap Quantum Computing Systems.

Anurag Dwivedi, A. Rasmusson, Philip Richerme +1 more·Jun 7, 2024

Quantum nuclear dynamics with wavepacket time evolution is classically intractable and viewed as a promising avenue for quantum information processing. Here, we use IonQ, Inc.'s 11-qubit trapped-ion quantum computer, Harmony, to study the quantum wav...

MedicinePhysics

Dispersive Qubit Readout with Intrinsic Resonator Reset

M. Jerger, F. Motzoi, Y. Gao +9 more·Jun 7, 2024

A key challenge in quantum computing is speeding up measurement and initialization. Here, we experimentally demonstrate a dispersive measurement method for superconducting qubits that simultaneously measures the qubit and returns the readout resonato...

Physics

Quantum Algorithms and Applications for Open Quantum Systems.

Luis H Delgado-Granados, Timothy J. Krogmeier, LeeAnn M. Sager-Smith +10 more·Jun 7, 2024

Accurate models for open quantum systems─quantum states that have nontrivial interactions with their environment─may aid in the advancement of a diverse array of fields, including quantum computation, informatics, and the prediction of static and dyn...

PhysicsMedicine

Quantum state preparation for a velocity field based on the spherical Clebsch wave function

Hao Su, Shiying Xiong, Yue Yang·Jun 7, 2024

We propose a method for preparing the quantum state for a given velocity field, e.g., in fluid dynamics, via the spherical Clebsch wave function (SCWF). Using the pointwise normalization constraint for the SCWF, we develop a variational ansatz compri...

Physics

MIMO With 1-b Pre/Postcoding Resolution: A Quantum Annealing Approach

Ioannis Krikidis·Jun 7, 2024

In this article, we study the problem of digital pre/postcoding design in multiple-input multiple-output (MIMO) systems with 1-b resolution per complex dimension. The optimal solution that maximizes the received signal-to-noise ratio relies on an NP-...

EngineeringComputer ScienceMathematics

Slow and stored light via electromagnetically induced transparency using a Λ -type superconducting artificial atom

Kai-I Chu, Xiao-Cheng Lu, K-H Chiang +5 more·Jun 7, 2024

Recent progresses in Josephson-junction-based superconducting circuits have propelled quantum information processing forward. However, the lack of a metastable state in most superconducting artificial atoms hinders the development of photonic quantum...

Physics

Entanglement with neutral atoms in the simulation of nonequilibrium dynamics of one-dimensional spin models

Anupam Mitra·Jun 7, 2024

Quantum entanglement is a key ingredient for quantum information processing with capabilities beyond that of classical computation. We study the generation and role of entanglement in the dynamics of spin-1/2 models, both for the design of quantum ga...

Physics

Quantum computing for nonlinear differential equations and turbulence

Felix Tennie, Sylvain Laizet, S. Lloyd +1 more·Jun 7, 2024

Many problems in classical physics and engineering, such as turbulence, are governed by nonlinear differential equations, which typically require high-performance computing to be solved. Over the past decade, however, the growth of classical computin...

Physics

Relativistic VQE calculations of molecular electric dipole moments on trapped ion quantum hardware

Palak Chawla, Shweta, K. R. Swain +9 more·Jun 7, 2024

The quantum-classical hybrid variational quantum eigensolver (VQE) algorithm is among the most actively studied topics in atomic and molecular calculations on quantum computers, yet few studies address properties other than energies or account for re...

Physics

Residue Number System (RNS) Based Distributed Quantum Addition

Bhaskar Gaur, Travis S. Humble, Himanshu Thapliyal·Jun 7, 2024

Quantum Arithmetic faces limitations such as noise and resource constraints in the current Noisy Intermediate Scale Quantum (NISQ) era quantum computers. We propose using Distributed Quantum Computing (DQC) to overcome these limitations by substituti...

Computer SciencePhysics

High-precision and low-depth quantum algorithm design for eigenstate problems

Jinzhao Sun, Pei Zeng, Tom Gur +1 more·Jun 6, 2024

Estimating the eigenstate properties of quantum systems is a long-standing, challenging problem for both classical and quantum computing. Existing universal quantum algorithms typically rely on ideal and efficient query models (e.g. time evolution op...

Quantum Physicscond-mat.str-elphysics.comp-ph

Probing quantum complexity via universal saturation of stabilizer entropies

Tobias Haug, Leandro Aolita, M. S. Kim·Jun 6, 2024

Nonstabilizerness or `magic' is a key resource for quantum computing and a necessary condition for quantum advantage. Non-Clifford operations turn stabilizer states into resourceful states, where the amount of nonstabilizerness is quantified by resou...

Computer SciencePhysics

Interfacing Gottesman-Kitaev-Preskill qubits to quantum memories

Prajit Dhara, Liang Jiang, Saikat Guha·Jun 6, 2024

Gottesman-Kitaev-Preskill (GKP) states have been demonstrated to pose significant advantages when utilized for fault-tolerant all optical continuous-variable quantum computing as well as for quantum communications links for entanglement distribution....

Physics

Avoiding barren plateaus with entanglement

Yuhan Yao, Yoshihiko Hasegawa·Jun 6, 2024

In the search for quantum advantage with near-term quantum devices, navigating the optimization landscape is significantly hampered by the barren plateaus phenomenon. This study presents a strategy to overcome this obstacle without changing the quant...

Physics

T-Count Optimizing Genetic Algorithm for Quantum State Preparation

Andrew Wright, Marco Lewis, Paolo Zuliani +1 more·Jun 6, 2024

Quantum state preparation is a crucial process within numerous quantum algorithms, and the need for efficient initialization of quantum registers is ever increasing as demand for useful quantum computing grows. The problem arises as the number of qub...

PhysicsComputer Science

High-Fidelity Electron Spin Gates for Scaling Diamond Quantum Registers

T. Joas, F. Ferlemann, Roberto Sailer +9 more·Jun 6, 2024

Diamond is a promising platform for quantum information processing as it can host highly coherent qubits that could allow for the construction of large quantum registers. A prerequisite for such devices is a coherent interaction between nitrogen-vaca...

Physics

Circuit-level fault tolerance of cat codes

Long D. H. My, Shu-Fen Qin, Hui Khoon Ng·Jun 6, 2024

Bosonic codes encode quantum information into a single infinite-dimensional physical system endowed with error correction capabilities. This reduces the need for complex management of many physical constituents compared with standard approaches emplo...

Computer SciencePhysics

Leakage mobility in superconducting qubits as a leakage reduction unit

Joan Camps, Ophelia Crawford, G. P. Gehér +3 more·Jun 6, 2024

Leakage from the computational subspace is a damaging source of noise that degrades the performance of most qubit types. Unlike other types of noise, leakage cannot be overcome by standard quantum error correction techniques and requires dedicated le...

Physics
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