Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,586 papers in 12 months (-18% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum distance-based classifier with constant size memory, distributed knowledge and state recycling
P. Sadowski·Mar 2, 2018
In this work we examine recently proposed distance-based classification method designed for near-term quantum processing units with limited resources. We further study possibilities to reduce the quantum resources without any efficiency decrease. We ...
Coherent electron transport in silicon quantum dots
Xinyu Zhao, Xuedong Hu·Mar 2, 2018
With silicon being the go-to material for spin qubits, and motivated by the demand of a scalable quantum computer architecture for fast and reliable quantum information transfer on-chip, we study coherent electron transport in a silicon double quantu...
Entanglement concentration and purification of two-mode squeezed microwave photons in circuit QED
Hao Zhang, A. Alsaedi, T. Hayat +1 more·Mar 1, 2018
We present a theoretical proposal for a physical implementation of entanglement concentration and purification protocols for two-mode squeezed microwave photons in circuit quantum electrodynamics (QED). First, we give the description of the cross-Ker...
Template-Assisted Scalable Nanowire Networks.
M. Friedl, Kris Cerveny, P. Weigele +15 more·Mar 1, 2018
Topological qubits based on Majorana Fermions have the potential to revolutionize the emerging field of quantum computing by making information processing significantly more robust to decoherence. Nanowires are a promising medium for hosting these ki...
Fault-tolerant detection of a quantum error
Serge Rosenblum, P. Reinhold, M. Mirrahimi +4 more·Feb 28, 2018
Fault-tolerant quantum coding Noise and imperfections in a quantum system can result in the presence and propagation of errors through the system. A reliable quantum processor will need to be able to correct for these errors and error syndromes. Rose...
On-chip transverse-mode entangled photon pair source
Lantian Feng, Ming Zhang, X. Xiong +7 more·Feb 27, 2018
Integrated entangled photon pair source is an essential resource for both fundamental investigations and practical applications of quantum information science. Currently there have been several types of entanglement, among which the transverse-mode e...
Static memory materials
D. Sexty, C. Wetterich·Feb 23, 2018
We simulate static memory materials on a two-dimensional lattice. The bulk properties of such materials depend on boundary conditions. Considerable information can be stored in various local patterns. We observe local probabilities oscillating with t...
Microscopic characterisation of laser-written phenomena for component-wise testing of photonic integrated circuits
J. Guan, Xiang Liu, A. Menssen +1 more·Feb 22, 2018
Photonic integrated circuits (PICs) directly written with a femtosecond laser have shown great potential in many areas such as quantum information processing (QIP). Many applications, like photon-based quantum computing, demand the up-scaling of PICs...
Quantum Divide-and-Conquer Anchoring for Separable Non-negative Matrix Factorization
Yuxuan Du, Tongliang Liu, Yinan Li +2 more·Feb 20, 2018
It is NP-complete to find non-negative factors W and H with fixed rank r from a non-negative matrix X by minimizing ||X-WH^Τ ||^2. Although the separability assumption (all data points are in the conical hull of the extreme rows) enables polynomial-t...
One-step implementation of a hybrid Fredkin gate with quantum memories and single superconducting qubit in circuit QED and its applications.
Tongqi Liu, Bao-qing Guo, Chang-shui Yu +1 more·Feb 19, 2018
In a recent remarkable experiment [Sci. Adv. 2, e1501531 (2016)], a 3-qubit quantum Fredkin (i.e., controlled-SWAP) gate was demonstrated by using linear optics. Here we propose a simple experimental scheme by utilizing the dispersive interaction in ...
Reinforcement Learning with Neural Networks for Quantum Feedback
T. Fosel, Petru Tighineanu, Talitha Weiss +1 more·Feb 14, 2018
Machine learning with artificial neural networks is revolutionizing science. The most advanced challenges require discovering answers autonomously. This is the domain of reinforcement learning, where control strategies are improved according to a rew...
Twins Percolation for Qubit Losses in Topological Color Codes.
D. Vodola, D. Amaro, M. Martin-Delgado +1 more·Feb 13, 2018
In this Letter, we establish and explore a new connection between quantum information theory and classical statistical mechanics by studying the problem of qubit losses in 2D topological color codes. We introduce a protocol to cope with qubit losses,...
Realization of efficient quantum gates with a superconducting qubit-qutrit circuit
T. Bækkegaard, L. B. Kristensen, N. Loft +3 more·Feb 12, 2018
Building a quantum computer is a daunting challenge since it requires good control but also good isolation from the environment to minimize decoherence. It is therefore important to realize quantum gates efficiently, using as few operations as possib...
Dynamical protection of nonclassical correlation in a quantum algorithm
V. S. Anjusha, T. S. Mahesh·Feb 8, 2018
A quantum memory interacts with its environment and loses information via decoherence as well as incoherence. A robust quantum control that prepares, preserves, and manipulates nonclassical correlations even in the presence of environmental influence...
Manipulation of two quantum systems through their mutual interaction in presence of a radiation field
G. Sadiek, Wiam Al-Drees, M. Abdallah·Feb 6, 2018
In cavity QED, the mutual interaction between natural atomic systems in presence of a radiation field was ignored due to its negligible impact compared with the coupling to the field. The newly engineered artificial atomic systems (such as quantum do...
PhD thesis: Homological Quantum Codes Beyond the Toric Code
N. P. Breuckmann·Feb 5, 2018
PhD thesis investigating homological quantum codes derived from curved and higher dimensional geometries. In the first part we will consider closed surfaces with constant negative curvature. We show how such surfaces can be constructed and enumerate ...
Optical modulation of coherent phonon emission in optomechanical cavities
J. Maire, G. Arregui, N. Capuj +5 more·Feb 4, 2018
Optomechanical (OM) structures are well suited to study photon-phonon interactions, and they also turn out to be potential building blocks for phononic circuits and quantum computing. In phononic circuits, in which information is carried and processe...
Synthetic spin–orbit coupling and topological polaritons in Janeys–Cummings lattices
F. Gu, Jia Liu, F. Mei +3 more·Jan 25, 2018
The interaction between a photon and a qubit in the Janeys–Cummings (JC) model generates a kind of quasiparticle called polariton. While they are widely used in quantum optics, difficulties in engineering-controllable coupling of them severely limit ...
Transfer-printed single photon sources coupled to wire waveguides
R. Katsumi, Y. Ota, M. Kakuda +2 more·Jan 24, 2018
Photonic integrated circuits (PICs) are attractive platforms to perform large-scale quantum information processing. While highly-functional PICs (e.g. silicon based photonic-circuits) and high-performance single photon sources (SPSs, e.g. compound-se...
Rapid High-fidelity Multiplexed Readout of Superconducting Qubits
J. Heinsoo, C. K. Andersen, A. Remm +8 more·Jan 24, 2018
The duration and fidelity of qubit readout is a critical factor for applications in quantum information processing as it limits the fidelity of algorithms which reuse qubits after measurement or apply feedback based on the measurement result. Here we...