Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Entanglement of Sections: The pushout of entangled and parameterized quantum information
Hisham Sati, Urs Schreiber·Sep 13, 2023
A question raised by Freedman & Hastings (2023) still stands: To produce a mathematical theory that would unify quantum entanglement/tensor-structure with parameterized/bundle-structure via their amalgamation (a hypothetical pushout) along bare quant...
Experimental topological quantum computing with electric circuits
Deyuan Zou, Naiqiao Pan, Tian Chen +2 more·Sep 9, 2023
The key obstacle to the realization of a scalable quantum computer is overcoming environmental and control errors. Topological quantum computation has attracted great attention because it has emerged as one of the most promising approaches to solving...
Global Synthesis of CNOT Circuits with Holes
Ewan Murphy, A. Kissinger·Aug 23, 2023
A common approach to quantum circuit transformation is to use the properties of a specific gate set to create an efficient representation of a given circuit's unitary, such as a parity matrix or stabiliser tableau, and then resynthesise an improved c...
Magnetic Skyrmion: From Fundamental Physics to Pioneering Applications
Kishan K. Mishra, Aijaz H. Lone, Srikant Srinivasan +2 more·Aug 22, 2023
Skyrmionic devices exhibit energy-efficient and high-integration data storage and computing capabilities due to their small size, topological protection, and low drive current requirements. So, to realize these devices, an extensive study, from funda...
Qubits on programmable geometries with a trapped-ion quantum processor
Qiming Wu, Yue Shi, Jiehang Zhang·Aug 20, 2023
Geometry and dimensionality have played crucial roles in our understanding of the fundamental laws of nature, with examples ranging from curved space-time in general relativity to modern theories of quantum gravity. In quantum many-body systems, the ...
Isolated zero mode in a quantum computer from a duality twist
Sutapa Samanta, Derek S. Wang, Armin Rahmani +1 more·Aug 4, 2023
Investigating the interplay of dualities, generalized symmetries, and topological defects beyond theoretical models is an important challenge in condensed matter physics and quantum materials. A simple model exhibiting this physics is the transverse-...
String amplitudes and mutual information in confining backgrounds: the partonic behavior
M. Ghodrati·Jul 25, 2023
In the background of several holographic confining backgrounds, we present the connections between the behaviors of string scattering amplitudes and mutual information. We lay down the analogies between the logarithmic branch cut behavior of the stri...
Dissipative phase transitions and passive error correction
Yu-Jie Liu, S. Lieu·Jul 18, 2023
We classify different ways to passively protect classical and quantum information, i.e. we do not allow for syndrome measurements, in the context of local Lindblad models for spin systems. Within this family of models, we suggest that passive error c...
Higher-Order Topological Kernels via Quantum Computation
Massimiliano Incudini, F. Martini, A. D. Pierro·Jul 14, 2023
Topological data analysis (TDA) has emerged as a powerful tool for extracting meaningful insights from complex data. TDA enhances the analysis of objects by embedding them into a simplicial complex and extracting useful global properties such as the ...
New three- and four-dimensional toric and burst error-correcting quantum codes
C. C. Trinca, R. Palazzo, R. Watanabe +3 more·Jul 12, 2023
Ongoing research and experiments have enabled quantum memory to realize the storage of qubits. On the other hand, interleaving techniques are used to deal with burst of errors. Effective interleaving techniques for combating burst of errors by using ...
Error-tolerant quantum convolutional neural networks for symmetry-protected topological phases
Petr Zapletal, Nathan A. McMahon, M. Hartmann·Jul 7, 2023
The analysis of noisy quantum states prepared on current quantum computers is getting beyond the capabilities of classical computing. Quantum neural networks based on parametrized quantum circuits, measurements and feed-forward can process large amou...
Quantum Fisher information and multipartite entanglement in spin-1 chains
Federico Dell’Anna, S. Pradhan, C. Boschi +1 more·Jul 5, 2023
In this paper, we study the ground state Quantum Fisher Information (QFI) in one-dimensional spin-1 models, as witness to Multipartite Entanglement. The models addressed are the Bilinear-Biquadratic model, the most general isotropic SU(2)-invariant s...
Systematic Computation of Braid Generator Matrix in Topological Quantum Computing
Abdellah Tounsi, N. Belaloui, Mohamed Messaoud Louamri +3 more·Jul 4, 2023
We provide a comprehensive systematic method for the numerical computation of elementary braid operations in topological quantum computation (TQC). This {procedure} is systematically applicable to all anyon models, including $SU(2)_k$. Braiding non-a...
Fault-Tolerant Code-Switching Protocols for Near-Term Quantum Processors
Friederike Butt, Sascha Heußen, M. Rispler +1 more·Jun 30, 2023
Topological color codes are widely acknowledged as promising candidates for fault-tolerant quantum computing. Neither a two-dimensional nor a three-dimensional topology, however, can provide a universal gate set {, , }, with the gate missing in the t...
Superselection rules, quantum error correction, and quantum chromodynamics
N. Bao, ChunJun Cao, A. Chatwin-Davies +2 more·Jun 29, 2023
We investigate the relationship between superselection rules and quantum error correcting codes. We demonstrate that the existence of a superselection rule implies the Knill-Laflamme condition in quantum error correction. As an example, we examine th...
Hunting for Majoranas
A. Yazdani, F. von Oppen, B. Halperin +1 more·Jun 21, 2023
Over the past decade, there have been considerable efforts to observe non-abelian quasiparticles in novel quantum materials and devices. These efforts are motivated by the goals of demonstrating quantum statistics of quasiparticles beyond those of fe...
Encoder Circuit For Surface Code using Measurement-Based Quantum Computing Model
Priyam Srivastava, V. Katyal, Ankur Raina·Jun 17, 2023
Surface codes are one of the most important topological stabilizer codes in the theory of quantum error correction. In this paper, we provide an efficient way to obtain surface codes through Measurement-based quantum computation (MBQC) using cluster ...
Introduction to Topological Superconductivity and Majorana Fermions for Quantum Engineers
Sanjay Vishwakarma, Sai Nandan Morapakula, Srinjoy Ganguly +2 more·Jun 16, 2023
In this tutorial paper, we provide an introduction to the briskly expanding research field of Majorana fermions in topological superconductors. We discuss several aspects of topological superconductivity and the advantages it brings to quantum comput...
Coexistence of symmetry-protected topological order and Neel order in the spin-1/2 ladder antiferromagnet C9H18N2CuBr4
T. Hong, I. Makhfudz, X. Ke +7 more·Jun 9, 2023
Topological phases of matter are beyond the paradigm of Landau's symmetry breaking and have challenged our understanding of condensed matter systems. Here we report a new type of symmetry-protected topological phase of matter in the spin-1/2 coupled ...
Ancilla-free scheme of deterministic topological quantum gates for Majorana qubits
Suyu Zhang, Jian‐Song Hong, Yuan Xue +4 more·May 29, 2023
The realization of quantum gates in topological quantum computation still confronts significant challenges in both fundamental and practical aspects. Here, we propose a deterministic and fully topologically protected measurement-based scheme to reali...