Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,849 papers in 12 months (-10% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Minimizing the Number of Teleportations in Distributed Quantum Computing Using Alloy
Ali Ebnenasir, Kieran Young·Apr 24, 2024
This paper presents a novel approach for minimizing the number of teleportations in Distributed Quantum Computing (DQC) using formal methods. Quantum teleportation plays a major role in communicating quantum information. As such, it is desirable to p...
Constant-Depth Preparation of Matrix Product States with Adaptive Quantum Circuits
Kevin C. Smith, Abid Khan, Bryan K. Clark +2 more·Apr 24, 2024
Adaptive quantum circuits, which combine local unitary gates, midcircuit measurements, and feedforward operations, have recently emerged as a promising avenue for efficient state preparation, particularly on near-term quantum devices limited to shall...
Optimal entanglement generation in optomechanical systems via Krotov control of covariance matrix dynamics
Pengju Chen, Da-Wei Luo, Ting Yu·Apr 24, 2024
We investigate the optimal control of a continuous variable system, focusing on entanglement generation in an optomechanical system without utilizing Fock basis cutoffs. Using the Krotov algorithm to optimize the dynamics of the covariance matrix, we...
Benchmarking a heuristic Floquet adiabatic algorithm for the Max-Cut problem
Etienne Granet, Henrik Dreyer·Apr 24, 2024
According to the adiabatic theorem of quantum mechanics, a system initially in the ground state of a Hamiltonian remains in the ground state if one slowly changes the Hamiltonian. This can be used in principle to solve hard problems on quantum comput...
Guided-SPSA: Simultaneous Perturbation Stochastic Approximation Assisted by the Parameter Shift Rule
Maniraman Periyasamy, A. Plinge, Christopher Mutschler +2 more·Apr 24, 2024
The study of variational quantum algorithms (VQCs) has received significant attention from the quantum computing community in recent years. These hybrid algorithms, utilizing both classical and quantum components, are well-suited for noisy intermedia...
Performant near-term quantum combinatorial optimization
Titus Morris, Ananth Kaushik, Martin Roetteler +1 more·Apr 24, 2024
Combinatorial optimization is a promising application for near-term quantum computers, however, identifying performant algorithms suited to noisy quantum hardware remains as an important goal to potentially realizing quantum computational advantages....
Efficiently constructing a quantum uniform superposition over bit strings near a binary linear code
E. Farhi, S. Jordan·Apr 24, 2024
We demonstrate that a high fidelity approximation to $\ket{\Psi_b}$, the quantum superposition over all bit strings within Hamming distance $b$ of the codewords of a dimension-$k$ linear code over $\mathbb{Z}_2^n$, can be efficiently constructed by a...
Simulating unsteady flows on a superconducting quantum processor
Zhaoyuan Meng, Jiarun Zhong, Shibo Xu +24 more·Apr 24, 2024
Recent advancements of quantum technologies have triggered tremendous interest in exploring practical quantum advantage. The simulation of fluid dynamics, a highly challenging problem in classical physics but vital for practical applications, emerges...
Creating Entangled Logical Qubits in the Heavy-Hex Lattice with Topological Codes
Bence Het'enyi, James R. Wootton·Apr 24, 2024
Designs for quantum error correction depend strongly on the connectivity of the qubits. For solid-state qubits, the most straightforward approach is to have connectivity constrained to a planar graph. Practical considerations may also further restric...
A Bi-directional Quantum Search Algorithm
Debanjan Konar, Zain Hafeez, Vaneet Aggarwal·Apr 24, 2024
Grover's search algorithms, including various partial Grover searches, experience scaling problems as the number of iterations rises with increased qubits, making implementation more computationally expensive. This paper combines Partial Grover's sea...
Extension of a pattern recognition validation approach for noisy boson sampling
Y. Ji, Yongzheng Wu, Shi Wang +3 more·Apr 24, 2024
Boson sampling is one of the main quantum computation models to demonstrate the quantum computational advantage. However, this aim may be hard to realize considering two main kinds of noises, which are photon distinguishability and photon loss. Inspi...
QOPTLib: a Quantum Computing Oriented Benchmark for Combinatorial Optimization Problems
E. Osaba, Esther Villar-Rodriguez·Apr 24, 2024
In this paper, we propose a quantum computing oriented benchmark for combinatorial optimization. This benchmark, coined as QOPTLib, is composed of 40 instances equally distributed over four well-known problems: Traveling Salesman Problem, Vehicle Rou...
Effective Dynamics of Qubit Networks via Phase-Covariant Quantum Ensembles
S. Prudhoe, U. Akhouri, Tommy Chin +1 more·Apr 23, 2024
We derive a new constructive procedure to rapidly generate ensembles of phase-covariant dynamical maps that may be associated to the individual spins of a closed quantum system. We do this by first computing the single-spin dynamical maps in small XX...
The quantum adiabatic algorithm suppresses the proliferation of errors
Benjamin F. Schiffer, A. Rubio, Rahul Trivedi +1 more·Apr 23, 2024
The propagation of errors severely compromises the reliability of quantum computations. The quantum adiabatic algorithm is a physically motivated method to prepare ground states of classical and quantum Hamiltonians. Here, we analyze the proliferatio...
The extended Lipkin model: proposal for implementation in a quantum platform and machine learning analysis of its phase diagram
S. Baid, A. S'aiz, L. Lamata +5 more·Apr 23, 2024
We investigate the Extended Lipkin Model (ELM), whose phase diagram mirrors that of the Interacting Boson Approximation model (IBA). Unlike the standard Lipkin model, the ELM (as the IBA) features both first- and second-order quantum shape phase tran...
A resource-efficient variational quantum algorithm for mRNA codon optimization
Hongfeng Zhang, A. Sarkar, Koen Bertels·Apr 23, 2024
Optimizing the mRNA codon has an essential impact on gene expression for a specific target protein. It is an NP-hard problem; thus, exact solutions to such optimization problems become computationally intractable for realistic problem sizes on both c...
Digital Quantum Simulation for Spectroscopy of Schwinger Model
Dongwook Ghim, Masazumi Honda·Apr 23, 2024
This note discusses a method for computing the energy spectra of quantum field theory utilizing digital quantum simulation. A quantum algorithm, called coherent imaging spectroscopy, quenches the vacuum with a time-oscillating perturbation and then r...
Runtime-coherence trade-offs for hybrid SAT-solvers
Vahideh Eshaghian, Soren Wilkening, Johan AAberg +1 more·Apr 23, 2024
Many search-based quantum algorithms that achieve a theoretical speedup are not practically relevant since they require extraordinarily long coherence times, or lack the parallelizability of their classical counterparts.This raises the question of ho...
Quantum Computational Advantage with Constant-Temperature Gibbs Sampling
Thiago Bergamaschi, Chi-Fang Chen, Yunchao Liu·Apr 23, 2024
A quantum system coupled to a bath at some fixed, finite temperature converges to its Gibbs state. This thermalization process defines a natural, physically-motivated model of quantum computation. However, whether quantum computational advantage can ...
Tensor networks based quantum optimization algorithm
V.Akshay, Ar.Melnikov, A.Termanova +1 more·Apr 23, 2024
In optimization, one of the well-known classical algorithms is power iterations. Simply stated, the algorithm recovers the dominant eigenvector of some diagonalizable matrix. Since numerous optimization problems can be formulated as an eigenvalue/eig...