Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,910 papers in 12 months (-5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hybrid light-matter networks of Majorana zero modes
L. Contamin, M. Delbecq, B. Douçot +2 more·Mar 30, 2021
Topological excitations, such as Majorana zero modes, are a promising route for encoding quantum information. Topologically protected gates of Majorana qubits, based on their braiding, will require some form of network. Here, we propose to build such...
Topological-Graph Dependencies and Scaling Properties of a Heuristic Qubit-Assignment Algorithm
M. Steinberg, Sebastian Feld, C. G. Almudéver +2 more·Mar 29, 2021
The qubit-mapping problem aims to assign and route qubits of a quantum circuit onto an noisy intermediate-scale quantum (NISQ) device in an optimized fashion, with respect to some cost function. Finding an optimal solution to this problem is known to...
Stabilizing multiple topological fermions on a quantum computer
Jin Ming Koh, Tommy Tai, Yong Han Phee +2 more·Mar 23, 2021
In classical and single-particle settings, non-trivial band topology always gives rise to robust boundary modes. For quantum many-body systems, however, multiple topological fermions are not always able to coexist, since Pauli exclusion prevents addi...
Graph-state representation of the toric code
Pengcheng Liao, D. Feder·Mar 23, 2021
Given their potential for fault-tolerant operations, topological quantum states are currently the focus of intense activity. Of particular interest are topological quantum error correction codes, such as the surface and planar stabilizer codes that a...
Topologically Protected Valley-Dependent Quantum Photonic Circuits.
Yang Chen, Xin-Tao He, Yujie Cheng +7 more·Mar 11, 2021
Topological photonics has been introduced as a powerful platform for integrated optics, since it can deal with robust light transport, and be further extended to the quantum world. Strikingly, valley-contrasting physics in topological photonic struct...
Quantum Computers: Engines for Next Industrial Revolution
Zhenghan Wang·Feb 8, 2021
Although the current information revolution is still unfolding, the next industrial revolution is already rearing its head. A second quantum revolution based on quantum technology will power this new industrial revolution with quantum computers as it...
Scalable Neural Decoder for Topological Surface Codes.
Kai Meinerz, Chae-Yeun Park, S. Trebst·Jan 18, 2021
With the advent of noisy intermediate-scale quantum (NISQ) devices, practical quantum computing has seemingly come into reach. However, to go beyond proof-of-principle calculations, the current processing architectures will need to scale up to larger...
Quantum Simulation of the Bosonic Creutz Ladder with a Parametric Cavity.
Jimmy S. C. Hung, J. Busnaina, C. S. Chang +6 more·Jan 11, 2021
There has been a growing interest in realizing quantum simulators for physical systems where perturbative methods are ineffective. The scalability and flexibility of circuit quantum electrodynamics make it a promising platform for implementing variou...
Fault-Tolerant Continuous-Variable Measurement-based Quantum Computation Architecture
M. V. Larsen, C. Chamberland, Kyungjoo Noh +2 more·Jan 8, 2021
Continuous variable measurement-based quantum computation on cluster states has in recent years shown great potential for scalable, universal, and fault-tolerant quantum computation when combined with the Gottesman-Kitaev-Preskill (GKP) code and quan...
Markovian Quantum Neuroevolution for Machine Learning
Zhide Lu, Pei-Xin Shen, D. Deng·Dec 30, 2020
Neuroevolution, a field that draws inspiration from the evolution of brains in nature, harnesses evolutionary algorithms to construct artificial neural networks. It bears a number of intriguing capabilities that are typically inaccessible to gradient...
Trapping Sets of Quantum LDPC Codes
Nithin Raveendran, Bane Vasi'c·Dec 30, 2020
Iterative decoders for finite length quantum low-density parity-check (QLDPC) codes are attractive because their hardware complexity scales only linearly with the number of physical qubits. However, they are impacted by short cycles, detrimental grap...
Crosstalk Suppression for Fault-tolerant Quantum Error Correction with Trapped Ions
Pedro Parrado-Rodríguez, C. Ryan-Anderson, A. Bermudez +1 more·Dec 21, 2020
Physical qubits in experimental quantum information processors are inevitably exposed to different sources of noise and imperfections, which lead to errors that typically accumulate hindering our ability to perform long computations reliably. Progres...
Ab initio modeling framework for Majorana transport in 2D materials: towards topological quantum computing
Y. Lee, T. Agarwal, M. Luisier·Dec 12, 2020
We present an ab initio modeling framework to simulate Majorana transport in 2D semiconducting materials, paving the way for topological qubits based on 2D nanoribbons. By combining density-functional-theory and quantum transport calculations, we sho...
Majorana braiding gates for topological superconductors in a one dimensional geometry
Marek Narozniak, M. Dartiailh, J. Dowling +2 more·Dec 11, 2020
We propose and analyze a physical system capable of performing topological quantum computation with Majorana zero modes (MZM) in a one-dimensional topological superconductor (1DTS). One of the leading methods to realize quantum gates in 1DTS is to us...
Z2 lattice gauge theories and Kitaev's toric code: A scheme for analog quantum simulation
Lukas Homeier, C. Schweizer, M. Aidelsburger +2 more·Dec 9, 2020
Kitaev's toric code is an exactly solvable model with $\mathbb{Z}_2$-topological order, which has potential applications in quantum computation and error correction. However, a direct experimental realization remains an open challenge. Here, we propo...
AKLT-States as ZX-Diagrams: Diagrammatic Reasoning for Quantum States
R. East, J. J. Van De Wetering, N. Chancellor +1 more·Dec 2, 2020
From Feynman diagrams to tensor networks, diagrammatic representations of computations in quantum mechanics have catalysed progress in physics. These diagrams represent the underlying mathematical operations and aid physical interpretation, but canno...
Topological obstructions to quantum computation with unitary oracles
Zuzana Gavorov'a, M. Seidel, Y. Touati·Nov 19, 2020
Algorithms with unitary oracles can be nested, which makes them extremely versatile. An example is the phase estimation algorithm used in many candidate algorithms for quantum speed-up. The search for new quantum algorithms benefits from understandin...
Hybrid Berezinskii-Kosterlitz-Thouless and Ising topological phase transition in the generalized two-dimensional XY model using tensor networks
F. Song, Guang-Ming Zhang·Nov 11, 2020
In tensor network representation, the partition function of a generalized two-dimensional XY spin model with topological integer and half-integer vortex excitations is mapped to a tensor product of one-dimensional quantum transfer operator, whose eig...
Highly photon-loss-tolerant quantum computing using hybrid qubits
S. Omkar, Y. S. Teo, Seung-Woo Lee +1 more·Nov 9, 2020
We investigate a scheme for topological quantum computing using optical hybrid qubits and make an extensive comparison with previous all-optical schemes. We show that the photon loss threshold reported by Omkar {\it et al}. [Phys. Rev. Lett. 125, 060...
Hybridization mechanism of the dual proximity effect in superconductor–topological insulator interfaces
N. Sedlmayr, A. Levchenko·Oct 27, 2020
In this communication we consider generalities of the proximity effect in a contact between a conventional $s$-wave superconductor (S) nano-island and a thin film of a topological insulator (TI). A local hybridization coupling mechanism is considered...