Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
HAM-Schrodingerisation: a Generic Framework of Quantum Simulation for Any Nonlinear PDEs
Shijun Liao·Jun 22, 2024
Recently, Jin et al. proposed a quantum simulation technique for ANY linear partial differential equations (PDEs), called Schr\"{o}dingerisation [1,2,3]. In this paper, the Schr\"{o}dingerisation technique for quantum simulation is expanded to ANY no...
Generalized Type II Fusion of Cluster States
Noam Rimock, Khen Cohen, Yaron Oz·Jun 21, 2024
Measurement based quantum computation is a quantum computing paradigm that employs single-qubit measurements performed on an entangled resource state in the form of a cluster state. A basic ingredient in the construction of the resource state is the ...
Nonlinearity of the Fidelity in Open Qudit Systems: Gate and Noise Dependence in High-dimensional Quantum Computing
Jean-Gabriel Hartmann, D. Jankovi'c, R'emi Pasquier +2 more·Jun 21, 2024
High-dimensional quantum computing has generated significant interest due to its potential to address scalability and error correction challenges faced by traditional qubit-based systems. This paper investigates the Average Gate Fidelity (AGF) of sin...
Entanglement and iSWAP gate between molecular qubits
L. R. Picard, Annie J. Park, Gabriel E. Patenotte +4 more·Jun 21, 2024
Quantum computation and simulation rely on long-lived qubits with controllable interactions. Trapped polar molecules have been proposed as a promising quantum computing platform, offering scalability and single-particle addressability while still lev...
A Blindness Property of the Min-Sum Decoding for the Toric Code
Julien du Crest, M. Mhalla, Valentin Savin·Jun 21, 2024
Kitaev’s toric code is one of the most prominent models for fault-tolerant quantum computation, currently regarded as the leading solution for connectivity constrained quantum technologies. Significant effort has been recently devoted to improving th...
Observation of a non-Hermitian supersonic mode on a trapped-ion quantum computer
Yuxuan Zhang, J. Carrasquilla, Yong Baek Kim·Jun 21, 2024
Quantum computers have long been anticipated to excel in simulating quantum many-body physics. In this work, we demonstrate the power of variational quantum circuits for resource-efficient simulations of dynamical and equilibrium physics in non-Hermi...
Thermal state preparation of the SYK model using a variational quantum algorithm
Jack Y. Araz, Raghav G. Jha, Felix Ringer +1 more·Jun 21, 2024
We study the preparation of thermal states of the dense and sparse Sachdev-Ye-Kitaev (SYK) model using a variational quantum algorithm for $6 \le N \le 12$ Majorana fermions over a wide range of temperatures. Utilizing IBM's 127-qubit quantum process...
Promise of Graph Sparsification and Decomposition for Noise Reduction in QAOA: Analysis for Trapped-Ion Compilations
Jai Moondra, Philip C. Lotshaw, Greg Mohler +1 more·Jun 20, 2024
We develop new approximate compilation schemes that significantly reduce the expense of compiling the Quantum Approximate Optimization Algorithm (QAOA) for solving the Max-Cut problem. Our main focus is on compilation with trapped-ion simulators usin...
Nonstabilizerness in kinetically constrained Rydberg atom arrays
Ryan J. Smith, Zlatko Papi'c, Andrew Hallam·Jun 20, 2024
Non-stabilizer states are a fundamental resource for universal quantum computation. However,despite broad significance in quantum computing, the emergence of"many-body"non-stabilizerness in interacting quantum systems remains poorly understood due to...
A differentiable quantum phase estimation algorithm
D. Castaldo, S. Jahangiri, A. Migliore +2 more·Jun 20, 2024
The simulation of electronic properties is a pivotal issue in modern electronic structure theory, driving significant efforts over the past decades to develop protocols for computing energy derivatives. In this work, we address this problem by develo...
Individually addressed entangling gates in a two-dimensional ion crystal
Y. Hou, Y.-J. Yi, Y. Wu +14 more·Jun 20, 2024
Two-dimensional (2D) ion crystals may represent a promising path to scale up qubit numbers for ion trap quantum information processing. However, to realize universal quantum computing in this system, individually addressed high-fidelity two-qubit ent...
Ambiguity Clustering: an accurate and efficient decoder for qLDPC codes
Stasiu Wolanski, Ben Barber·Jun 20, 2024
Error correction allows a quantum computer to preserve states long beyond the decoherence time of its physical qubits. Key to any scheme of error correction is the decoding algorithm, which estimates the error state of qubits from the results of synd...
High-threshold, low-overhead and single-shot decodable fault-tolerant quantum memory
Thomas R. Scruby, Timo Hillmann, Joschka Roffe·Jun 20, 2024
We present a new family of quantum low-density parity-check codes, which we call radial codes, obtained from the lifted product of a specific subset of classical quasi-cyclic codes. The codes are defined using a pair of integers $(r,s)$ and have para...
Queen: A quick, scalable, and comprehensive quantum circuit simulation for supercomputing
Chuan-Chi Wang, Yu-Cheng Lin, Yanjun Wang +2 more·Jun 20, 2024
The state vector-based simulation offers a convenient approach to developing and validating quantum algorithms with noise-free results. However, limited by the absence of cache-aware implementations and unpolished circuit optimizations, the past simu...
Qrisp: A Framework for Compilable High-Level Programming of Gate-Based Quantum Computers
Raphael Seidel, Sebastian Bock, René Zander +4 more·Jun 20, 2024
While significant progress has been made on the hardware side of quantum computing, support for high-level quantum programming abstractions remains underdeveloped compared to classical programming languages. In this article, we introduce Qrisp, a fra...
Compact fermionic quantum state preparation with a natural-orbitalizing variational quantum eigensolving scheme
Pauline Besserve, M. Ferrero, T. Ayral·Jun 20, 2024
Assemblies of strongly interacting fermions, whether in a condensed-matter or a quantum chemistry context, range amongst the most promising candidate systems for which quantum computing platforms could provide an advantage. Near-term quantum state pr...
Stabilization of Kerr-cat qubits with quantum circuit refrigerator
Shumpei Masuda, Shunsuke Kamimura, Tsuyoshi Yamamoto +2 more·Jun 20, 2024
A periodically driven superconducting nonlinear resonator can implement a Kerr-cat qubit, which provides a promising route to a quantum computer with a long lifetime. However, the system is vulnerable to pure dephasing, which causes unwanted excitati...
QuIP: A P4 Quantum Internet Protocol Prototyping Framework
W. Kozlowski, Fernando A. Kuipers, Rob Smets +1 more·Jun 20, 2024
Quantum entanglement is so fundamentally different from a network packet that several quantum network stacks have been proposed; one of which has even been experimentally demonstrated. Several simulators have also been developed to make up for limite...
Beyond QUBO and HOBO formulations, solving the Travelling Salesman Problem on a quantum boson sampler
Daniel Charles Goldsmith, Joe Day-Evans·Jun 20, 2024
The Travelling Salesman Problem (TSP) is an important combinatorial optimisation problem, and is usually solved on a quantum computer using a Quadratic Unconstrained Binary Optimisation (QUBO) formulation or a Higher Order Binary Optimisation(HOBO) f...
Variational-Cartan Quantum Dynamics Simulations of Excitation Dynamics
L. Wan, Jie Liu, Zhenyu Li +1 more·Jun 20, 2024
Quantum dynamics simulations (QDSs) are one of the most highly anticipated applications of quantum computing. Quantum circuit depth for implementing Hamiltonian simulation algorithms is commonly time dependent so that long time dynamics simulations b...