Papers

J. Krause, C. Dickel, E. Vaal +6 more·Nov 1, 2021

Magnetic-field-resilient superconducting circuits enable sensing applications and hybrid quantum-computing architectures involving spin or topological qubits and electro-mechanical elements, as well as studying flux noise and quasiparticle loss. We i...

Y. Lai, S. Das Sarma, J. Sau·Nov 1, 2021

Despite recent experimental progress towards observing large zero-bias conductance peaks (ZBCPs) as signatures of Majorana modes, confusion remains about whether Majorana modes have been observed. This is in part due to the theoretical prediction of ...

Ryuuichirou Hayakawa*·Oct 31, 2021

Topological data analysis (TDA) is an emergent field of data analysis. The critical step of TDA is computing the persistent Betti numbers. Existing classical algorithms for TDA are limited if we want to learn from high-dimensional topological feature...

R. Raussendorf, C. Okay, Michael Zurel +1 more·Oct 22, 2021

A web of cohomological facts relates quantum error correction, measurement-based quantum computation, symmetry protected topological order and contextuality. Here we extend this web to quantum computation with magic states. In this computational sche...

M. Mohseni, M. Rams, S. Isakov +5 more·Oct 20, 2021

Sampling a diverse set of high-quality solutions for hard optimization problems is of great practical relevance in many scientific disciplines and applications, such as artificial intelligence and operations research. One of the main open problems is...

Tatiana A. Bespalova, O. Kyriienko·Sep 28, 2021

We propose a quantum protocol that allows preparing a ground state (GS) of the honeycomb Kitaev model. Our approach efficiently uses underlying symmetries and techniques from topological error correction. It is based on the stabilization procedure, t...

S. Omkar, Seok-Hyung Lee, Yong-Siah Teo +2 more·Sep 25, 2021

Linear optical quantum computing is beset by the lack of deterministic entangling operations besides photon loss. Motivated by advancements at the experimental front in deterministic generation of various kinds of multiphoton entangled states, we pro...

J. Herrmann, Sergi Masot Llima, A. Remm +15 more·Sep 13, 2021

Quantum computing crucially relies on the ability to efficiently characterize the quantum states output by quantum hardware. Conventional methods which probe these states through direct measurements and classically computed correlations become comput...

Colton Griffin, Shawn X. Cui·Sep 10, 2021

We study a method of producing approximately diagonal 1-qubit gates. For each positive integer, the method provides a sequence of gates that are defined iteratively from a fixed diagonal gate and an arbitrary gate. These sequences are conjectured to ...

B. W. Walshe, R. N. Alexander, N. Menicucci +1 more·Sep 10, 2021

Continuous-variable cluster states allow for fault-tolerant measurement-based quantum computing when used in tandem with the Gottesman-Kitaev-Preskill (GKP) encoding of a qubit into a bosonic mode. For quad-rail-lattice macronode cluster states, whos...

Yitzchak Shmalo·Sep 7, 2021

The braid group appears in many scientific fields and its representations are instrumental in understanding topological quantum algorithms, topological entropy, classification of manifolds and so on. In this work, we study planer diagrams which are K...

C. Chamberland, E. Campbell·Sep 6, 2021

Lattice surgery protocols allow for the efficient implementation of universal gate sets with two-dimensional topological codes where qubits are constrained to interact with one another locally. In this work, we first introduce a decoder capable of co...

Yiming Ding, Xiaopeng Cui, Yu Shi·Aug 27, 2021

Abstract We present a quantum algorithm for digital quantum simulation of the Z2 gauge-Higgs model on a 3 × 3 lattice, which is based on Trotter decomposition, the quantum adiabatic algorithm and its circuit realization. Then we perform a classical d...

H. K. J., A. Pal·Aug 25, 2021

We investigate the static and the dynamical behavior of localizable entanglement and its lower bounds on nontrivial loops of topological quantum codes with parallel magnetic field. Exploiting the connection between the stabilizer states and graph stat...

Jinglei Zhang, Ryan M. Ferguson, S. Kühn +4 more·Aug 18, 2021

Quantum-enhanced computing methods are promising candidates to solve currently intractable problems. We consider here a variational quantum eigensolver (VQE), that delegates costly state preparations and measurements to quantum hardware, while classi...

J. Zhang·Aug 8, 2021

There are three important types of structural properties that remain unchanged under the structural transformation of condensed matter physics and chemistry. They are the properties that remain unchanged under the structural periodic transformation-p...

Shashanka Ubaru, I. Akhalwaya, M. Squillante +2 more·Aug 5, 2021

Quantum computing offers the potential of exponential speedups for certain classical computations. Over the last decade, many quantum machine learning (QML) algorithms have been proposed as candidates for such exponential improvements. However, two i...

Huai-Chun Chang, H. Hsu·Jul 25, 2021

Programmable quantum processors are suitable platforms for simulating quantum systems, of which topological phases are of particular interest. We simulate the quench dynamics of a one-dimensional system on IBM Q devices. The topological properties of...

T. Asselmeyer-Maluga·Jul 16, 2021

In this paper, we will present some ideas to use 3D topology for quantum computing extending ideas from a previous paper. Topological quantum computing used “knotted” quantum states of topological phases of matter, called anyons. But anyons are conne...

Jiayu Shen, Di Luo, Chenxi Huang +4 more·Jul 16, 2021

A topological $\theta$-term in gauge theories, including quantum chromodynamics in 3+1 dimensions, gives rise to a sign problem that makes classical Monte Carlo simulations impractical. Quantum simulations are not subject to such sign problems and ar...