Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Generation of Perfectly Entangled Two and Three Qubits States by Classical Random Interaction
Javed Akram·Dec 6, 2022
This study examines the possibility of finding perfect entanglers for a Hamiltonian which corresponds to several quantum information platforms of interest at the present time. However, in this study, a superconducting circuit is used that stands out ...
Prolegomena to a hybrid classical/Rydberg simulator for hadronization (QuPyth)
Blake Senseman, Zane Ozzello, Kenneth Heitritter +2 more·Dec 5, 2022
Programmable neutral-atom arrays provide a promising route to real-time analog simulation of strongly interacting quantum systems. We introduce a two leg Rydberg atom ladder that realizes string dynamics and controllable particle production using exp...
Orbital-optimized pair-correlated electron simulations on trapped-ion quantum computers
Luning Zhao, J. Goings, Kyujin Shin +8 more·Dec 5, 2022
Variational quantum eigensolvers (VQE) are among the most promising approaches for solving electronic structure problems on near-term quantum computers. A critical challenge for VQE in practice is that one needs to strike a balance between the expres...
Bayesian phase difference estimation algorithm for direct calculation of fine structure splitting: accelerated simulation of relativistic and quantum many-body effects
K. Sugisaki, Srinivasa Prasannaa, S. Ohshima +4 more·Dec 5, 2022
Despite rapid progress in the development of quantum algorithms in quantum computing as well as numerical simulation methods in classical computing for atomic and molecular applications, no systematic and comprehensive electronic structure study of a...
Quantum NETwork: from theory to practice
K. Fang, Jingtian Zhao, Xiufan Li +2 more·Dec 2, 2022
The quantum internet is envisioned as the ultimate stage of the quantum revolution, which surpasses its classical counterpart in various aspects, such as the efficiency of data transmission, the security of network services, and the capability of inf...
Fault Models in Superconducting quantum circuits
Qifan Huang, Boxi Li, Minbo Gao +1 more·Dec 1, 2022
Fault models are indispensable for many EDA tasks, so as for design and implementation of quantum hardware. In this article, we propose a fault model for superconducting quantum systems. Our fault model reflects the real fault behavior in control sig...
A Matrix Big Bang on a Quantum Computer
V. Chandra, Yuan Feng, M. McGuigan·Dec 1, 2022
M-theory is a mysterious theory that seeks to unite different string theories in one lower dimension. The most studied example is eleven dimensional but other dimensions have been considered. The non-critical M-theories seek to unite different non-cr...
Resource-frugal Hamiltonian eigenstate preparation via repeated quantum phase estimation measurements
Richard Meister, S. Benjamin·Dec 1, 2022
The preparation of Hamiltonian eigenstates is essential for many applications in quantum computing; the efficiency with which this can be done is of key interest. A canonical approach exploits the quantum phase estimation (QPE) algorithm. We adopt id...
Approximation Algorithm for Noisy Quantum Circuit Simulation
Mingyu Huang, J. Guan, Wang Fang +1 more·Nov 30, 2022
Simulating noisy quantum circuits is vital in de-signing and verifying quantum algorithms in the current NISQ (Noisy Intermediate-Scale Quantum) era, where quantum noise is unavoidable. However, it is much more inefficient than the classical counterp...
On the complexity of quantum link prediction in complex networks
João P. Moutinho, Duarte Magano, B. Coutinho·Nov 29, 2022
Link prediction methods use patterns in known network data to infer which connections may be missing. Previous work has shown that continuous-time quantum walks can be used to represent path-based link prediction, which we further study here to devel...
Simulation of positive operator-valued measures and quantum instruments via quantum state-preparation algorithms
Douglas F. Pinto, M. S. Zanetti, Marcos L. W. Basso +1 more·Nov 29, 2022
In Ref. [Phys. Rev. A 100, 062317 (2019)], the authors reported an algorithm to implement, in a circuit-based quantum computer, a general quantum measurement (GQM) of a two-level quantum system, a qubit. Even though their algorithm seems right, its a...
Self-consistent Quantum Iteratively Sparsified Hamiltonian method (SQuISH): A new algorithm for efficient Hamiltonian simulation and compression
Diana Chamaki, Stuart Hadfield, Katherine Klymko +2 more·Nov 29, 2022
It is crucial to reduce the resources required to run quantum algorithms and simulate physical systems on quantum computers due to coherence time limitations. With regards to Hamiltonian simulation, a significant effort has focused on building effici...
Quantum Simulation of the Radical Pair Dynamics of the Avian Compass.
Yiteng Zhang, Zixuan Hu, Yuchen Wang +1 more·Nov 28, 2022
The simulation of open quantum dynamics on quantum circuits has attracted wide interests recently with a variety of quantum algorithms developed and demonstrated. Among these, one particular design of a unitary-dilation-based quantum algorithm is cap...
Practical quantum simulation of small-scale non-Hermitian dynamics
Hong-fang Liu, Xiaodong Yang, Kai Tang +5 more·Nov 27, 2022
Non-Hermitian quantum systems have recently attracted considerable attention due to their exotic properties. Though many experimental realizations of non-Hermitian systems have been reported, the non-Hermiticity usually resorts to the hard-to-control...
Quantum emulation of the transient dynamics in the multistate Landau-Zener model
A. Stehli, J. Brehm, Tim Wolz +4 more·Nov 26, 2022
Quantum simulation is one of the most promising near term applications of quantum computing. Especially, systems with a large Hilbert space are hard to solve for classical computers and thus ideal targets for a simulation with quantum hardware. In th...
Performance Study of Variational Quantum Algorithms for Solving the Poisson Equation on a Quantum Computer
Mazen Ali, M. Kabel·Nov 25, 2022
Recent advances in quantum computing and their increased availability has led to a growing interest in possible applications. Among those is the solution of partial differential equations (PDEs) for, e.g., material or flow simulation. Currently, the ...
Two-dimensional isometric tensor networks on an infinite strip
Yantao Wu, Sajant Anand, Sheng-Hsuan Lin +2 more·Nov 25, 2022
The exact contraction of a generic two-dimensional (2D) tensor network state (TNS) is known to be exponentially hard, making simulation of 2D systems difficult. The recently introduced class of isometric TNS (isoTNS) represents a subset of TNS that a...
SnCQA: A hardware-efficient equivariant quantum convolutional circuit architecture
Han Zheng, Gokul Subramanian Ravi, Hanrui Wang +3 more·Nov 23, 2022
We propose SnCQA, a set of hardware-efficient variational circuits of equivariant quantum convolutional circuits respective to permutation symmetries and spatial lattice symmetries with the number of qubits n. By exploiting permutation symmetries of ...
Race for Quantum Advantage using Random Circuit Sampling
Sangchul Oh, S. Kais·Nov 23, 2022
Random circuit sampling, the task to sample bit strings from a random unitary operator, has been performed to demonstrate quantum advantage on the Sycamore quantum processor with 53 qubits and on the Zuchongzhi quantum processor with 56 and 61 qubits...
End-To-End Resource Analysis for Quantum Interior-Point Methods and Portfolio Optimization
A. Dalzell, B. D. Clader, Grant Salton +8 more·Nov 22, 2022
We study quantum interior point methods (QIPMs) for second-order cone programming (SOCP), guided by the example use case of portfolio optimization (PO). We provide a complete quantum circuit-level description of the algorithm from problem input to pr...