Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Gauge structures: From stabilizer codes to continuum models
A. Schmitz·Sep 26, 2018
Stabilizer codes are a powerful method for implementing fault-tolerant quantum memory and in the case of topological codes, they form useful models for topological phases of matter. In this paper, we discuss the theory of stabilizer codes as a discre...
Computing Wasserstein Distance for Persistence Diagrams on a Quantum Computer
Jesse Berwald, J. Gottlieb, E. Munch·Sep 17, 2018
Persistence diagrams are a useful tool from topological data analysis which can be used to provide a concise description of a filtered topological space. What makes them even more useful in practice is that they come with a notion of a metric, the Wa...
A dissipatively stabilized Mott insulator of photons
R. Ma, B. Saxberg, Clai Owens +4 more·Jul 30, 2018
Superconducting circuits are a competitive platform for quantum computation because they offer controllability, long coherence times and strong interactions—properties that are essential for the study of quantum materials comprising microwave photons...
Network architecture for a topological quantum computer in silicon
B. Buonacorsi, Z. Cai, E. B. Ramirez +7 more·Jul 26, 2018
A design for a large-scale surface code quantum processor based on a node/network approach is introduced for semiconductor quantum dot spin qubits. The minimal node contains only seven quantum dots, and nodes are separated on the micron scale, creati...
Catalogue of topological electronic materials
Tiantian Zhang, Yi Jiang, Zhida Song +5 more·Jul 23, 2018
Topological electronic materials such as bismuth selenide, tantalum arsenide and sodium bismuthide show unconventional linear response in the bulk, as well as anomalous gapless states at their boundaries. They are of both fundamental and applied inte...
Quantum computation via Floquet topological edge modes
R. W. Bomantara, J. Gong·Jul 19, 2018
Floquet topological matter has emerged as one exciting platform to explore rich physics and game-changing applications of topological phases. As one remarkable and recently discovered feature of Floquet symmetry protected topological (SPT) phases, in...
Quantum Computing with Majorana Kramers Pairs.
C. Schrade, L. Fu·Jul 17, 2018
We propose a universal gate set acting on a qubit formed by the degenerate ground states of a Coulomb-blockaded time-reversal invariant topological superconductor island with spatially separated Majorana Kramers pairs: the "Majorana Kramers qubit." A...
Hyperbolic fracton model, subsystem symmetry, and holography. II. The dual eight-vertex model
Han Yan·Jul 16, 2018
We propose that the fracton topological order is a class of toy models for holography. The discovery of AdS/CFT correspondence as a concrete construction of holography, and the subsequent developments including the Ryu-Takanayagi formula of entanglem...
Magnetic field compatible circuit quantum electrodynamics with graphene Josephson junctions
J. Kroll, W. Uilhoorn, K. Enden +7 more·Jun 27, 2018
Circuit quantum electrodynamics has proven to be a powerful tool to probe mesoscopic effects in hybrid systems and is used in several quantum computing (QC) proposals that require a transmon qubit able to operate in strong magnetic fields. To address...
Fast universal logical gates on topologically encoded qubits at arbitrarily large code distances
Guanyu Zhu, A. Lavasani, M. Barkeshli·Jun 6, 2018
A fundamental question in the theory of quantum computation is to understand the ultimate space-time resource costs for performing a universal set of logical quantum gates to arbitrary precision. To date, all proposed schemes for implementing a unive...
Modeling noise and error correction for Majorana-based quantum computing
Christina Knapp, M. Beverland, D. Pikulin +1 more·Jun 4, 2018
Majorana-based quantum computing seeks to use the non-local nature of Majorana zero modes to store and manipulate quantum information in a topologically protected way. While noise is anticipated to be significantly suppressed in such systems, finite ...
A theory of single-shot error correction for adversarial noise
E. Campbell·May 23, 2018
Single-shot error correction is a technique for correcting physical errors using only a single round of noisy check measurements, such that any residual noise affects a small number of qubits. We propose a general theory of single-shot error correcti...
Quantum Adiabatic Evolution for Global Optimization in Big Data
Sahil Imtiyaz·May 16, 2018
Big Data is characterized by Volume, Velocity, Veracity and Complexity. The interaction between this huge data is complex with an associated free will having dynamic and non linear nature. We reduced big data based on its characteristics, conceptuall...
Symmetry-Protected Self-Correcting Quantum Memories
Sam Roberts, S. Bartlett·May 3, 2018
A self-correcting quantum memory can store and protect quantum information for a time that increases without bound with the system size and without the need for active error correction. We demonstrate that symmetry can lead to self-correction in 3D s...
Single Electron Transport and Possible Quantum Computing in 2D Materials
K. Chiu·Apr 9, 2018
Two-dimensional (2D) materials for their versatile band structures and strictly 2D nature have attracted considerable attention over the past decade. Graphene is a robust material for spintronics owing to its weak spin-orbit and hyperfine interaction...
Neural network decoder for topological color codes with circuit level noise
P. Baireuther, M. D. Caio, B. Criger +2 more·Apr 9, 2018
A quantum computer needs the assistance of a classical algorithm to detect and identify errors that affect encoded quantum information. At this interface of classical and quantum computing the technique of machine learning has appeared as a way to ta...
Quantum topological data analysis with continuous variables
G. Siopsis·Apr 5, 2018
I introduce a continuous-variable quantum topological data algorithm. The goal of the quantum algorithm is to calculate the Betti numbers in persistent homology which are the dimensions of the kernel of the combinatorial Laplacian. I accomplish this ...
Towards a Particle-Number Conserving Theory of Majorana Zero Modes in p+ip Superfluids
Yiruo Lin, A. Leggett·Mar 21, 2018
Majorana zero modes are predicted to exist in p+ip (either inherent or effective due to proximity effect) superfluids and are proposed to be used for constructing topological qubits for topologically protected quantum computing. Existing theories on ...
Efficient algorithm to compute the second Chern number in four dimensional systems
M. Mochol-Grzelak, A. Dauphin, A. Celi +1 more·Mar 19, 2018
Topological insulators are exotic material that possess conducting surface states protected by the topology of the system. They can be classified in terms of their properties under discrete symmetries and are characterized by topological invariants. ...
Quantum-assisted cluster analysis.
F. Neukart, David Von Dollen, Christian Seidel·Mar 7, 2018
We present an algorithm for quantum-assisted cluster analysis (QACA) that makes use of the topological properties of a D-Wave 2000Q quantum processing unit (QPU). Clustering is a form of unsupervised machine learning, where instances are organized in...