Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Information flow in parameterized quantum circuits
Abhinav Anand, Lasse Bjørn Kristensen, Felix Frohnert +2 more·Jul 11, 2022
In this work, we introduce a new way to quantify information flow in quantum systems, especially for parameterized quantum circuits (PQCs). We use a graph representation of the circuits and propose a new distance metric using the mutual information b...
Quantum Computing for Rotating, Charged and String Theory Black Holes
V. Chandra, M. McGuigan·Jul 7, 2022
The quantum mechanics of Rotating, Charged, de Sitter and String Theory black holes are of recent interest because of their peculiar thermodynamic properties, as well the mysterious nature of their microstates. A full quantum treatment of the operato...
Parameterized Colorings And Labellings Of Graphs In Topological Coding
Bing Yao, Xiaohui Zhang, Hui Sun +3 more·Jul 7, 2022
The coming quantum computation is forcing us to reexamine the cryptosystems people use. We are applying graph colorings of topological coding to modern information security and future cryptography against supercomputer and quantum computer attacks in...
Can one hear the shape of a wormhole?
S. Antonini, Petar Simidzija, Brian Swingle +1 more·Jul 5, 2022
A large class of flat big bang-big crunch cosmologies with negative cosmological constant are related by analytic continuation to asymptotically AdS traversable wormholes with planar cross section. In recent works (arXiv:2102.05057, arXiv:2203.11220)...
Virtual linear map algorithm for classical boost in near-term quantum computing
Guillermo Garc'ia-P'erez, Elsi-Mari Borrelli, Matea Leahy +5 more·Jul 4, 2022
, The rapid progress in quantum computing witnessed in recent years has sparked widespread interest in developing scalable quantum information theoretic methods to work with large quantum systems. For instance, several approaches have been proposed t...
Analyzing the behaviour of D'WAVE quantum annealer: fine-tuning parameterization and tests with restrictive Hamiltonian formulations
Esther Villar-Rodriguez, E. Osaba, I. Oregi·Jul 1, 2022
Despite being considered as the next frontier in computation, Quantum Computing is still in an early stage of development. Indeed, current commercial quantum computers suffer from some critical restraints, such as noisy processes and a limited amount...
Exploiting Anyonic Behavior of Quasicrystals for Topological Quantum Computing
Marcelo M. Amaral, David Chester, F. Fang +1 more·Jul 1, 2022
The concrete realization of topological quantum computing using low-dimensional quasiparticles, known as anyons, remains one of the important challenges of quantum computing. A topological quantum computing platform promises to deliver more robust qu...
Integrated photonic platforms for quantum technology: a review
R. Ramakrishnan, A. Ravichandran, Arpita Mishra +4 more·Jun 30, 2022
Quantum information processing has conceptually changed the way we process and transmit information. Our understanding of quantum physics, which explains the seemingly strange behavior of matter at the microscopic scales, has matured to the extent th...
Multivariate trace estimation in constant quantum depth
Yihui Quek, M. Wilde, Eneet Kaur·Jun 30, 2022
There is a folkloric belief that a depth-Θ(m) quantum circuit is needed to estimate the trace of the product of m density matrices (i.e., a multivariate trace), a subroutine crucial to applications in condensed matter and quantum information science....
Quantum Advantage Seeker with Kernels (QuASK): a software framework to speed up the research in quantum machine learning
Francesco Di Marcantonio, Massimiliano Incudini, Davide Tezza +1 more·Jun 30, 2022
Exploiting the properties of quantum information to the benefit of machine learning models is perhaps the most active field of research in quantum computation. This interest has supported the development of a multitude of software frameworks (e.g. Qi...
Effective light cone and digital quantum simulation of interacting bosons
Tomotaka Kuwahara, T. Vu, Keiji Saito·Jun 29, 2022
The speed limit of information propagation is one of the most fundamental features in non-equilibrium physics. The region of information propagation by finite-time dynamics is approximately restricted inside the effective light cone that is formulate...
Strong coupling between a photon and a hole spin in silicon
C. X. Yu, S. Zihlmann, J. C. Abadillo-Uriel +11 more·Jun 28, 2022
Spins in semiconductor quantum dots constitute a promising platform for scalable quantum information processing. Coupling them strongly to the photonic modes of superconducting microwave resonators would enable fast non-demolition readout and long-ra...
Scalable simulation of quantum measurement process with quantum computers
Meng-Jun Hu, Yanbei Chen, Yiqiu Ma +4 more·Jun 28, 2022
Recent development in quantum information sciences and technologies, especially building programmable quantum computers, provide us new opportunities to study fundamental aspects of quantum mechanics. We propose qubit models to emulate the quantum me...
Scaling adaptive quantum simulation algorithms via operator pool tiling
J. V. Van Dyke, Karunya Shirali, George S. Barron +3 more·Jun 28, 2022
Adaptive variational quantum simulation algorithms use information from the quantum computer to dynamically create optimal trial wavefunctions for a given problem Hamiltonian. A key ingredient in these algorithms is a predefined operator pool from wh...
Data assimilation in operator algebras
D. Freeman, D. Giannakis, Brian Mintz +2 more·Jun 28, 2022
Significance Data assimilation is an essential component of numerical models for forecasting and uncertainty quantification of dynamical systems given incomplete knowledge of the state and governing equations. Here, we develop theory and computationa...
Multi-agent blind quantum computation without universal cluster states
Shuxiang Cao·Jun 27, 2022
Blind quantum computation (BQC) protocols enable quantum algorithms to be executed on third-party quantum agents while keeping the data and algorithm confidential. The previous proposals for measurement-based BQC require preparing a highly entangled ...
Tripartite high-dimensional magnon-photon entanglement in PT -symmetry broken phases of a non-Hermitian hybrid system
Jin-Xuan Han, Jinling Wang, Yan Xia +2 more·Jun 26, 2022
Hybrid systems that combine spin ensembles and superconducting circuits provide a promising platform for implementing quantum information processing. We propose a non-Hermitian magnon-circuit-QED hybrid model consisting of two cavities and an yttrium...
Fast classical simulation of Hamiltonian dynamics by simultaneous diagonalization using Clifford transformation with parallel computation
Yoshiaki Kawase, K. Fujii·Jun 23, 2022
Simulating quantum many-body dynamics is important both for fundamental understanding of physics and practical applications for quantum information processing. Therefore, classical simulation methods have been developed so far. Specifically, the Trot...
Perturbation theory under the truncated Wigner approximation: How system-environment entanglement formation drives quantum decoherence
Justin Provazza, Roel Tempelaar·Jun 22, 2022
Quantum decoherence is the disappearance of simple phase relations within a discrete quantum system as a result of interactions with an environment. For many applications, the question is not necessarily how to avoid (inevitable) system-environment i...
Quantum network medicine: rethinking medicine with network science and quantum algorithms
S. Maniscalco, Elsi-Mari Borrelli, D. Cavalcanti +14 more·Jun 22, 2022
Scientific and technological advances in medicine and systems biology have unequivocally shown that health and disease must be viewed in the context of the interplay among multiple molecular and environmental factors. Understanding the effects of cel...