Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
NMRCloudQ: a quantum cloud experience on a nuclear magnetic resonance quantum computer.
T. Xin, Shilin Huang, Sirui Lu +7 more·Oct 10, 2017
Cloud-based quantum computing is anticipated to be the most useful and reachable form for public users to experience with the power of quantum. As initial attempts, IBM Q has launched influential cloud services on a superconducting quantum processor ...
Schrödinger cat states in circuit QED
S. Girvin·Oct 9, 2017
Circuit quantum electrodynamics (‘circuit QED’) describes the quantum mechanics and quantum optics of superconducting electrical circuits operating in the microwave regime near absolute zero temperature. It is the analog of cavity QED in quantum opti...
Deutsch, Toffoli, and CNOT gates via Rydberg blockade of neutral atoms
Xiao-Feng Shi·Oct 5, 2017
Universal quantum gates and quantum error correction~(QEC) lie in the heart of quantum information science. Large-scale quantum computing depends on a universal set of quantum gates, in which some gates may be easily carried out, while others are har...
Adaptive Control of Necklace States in a Photonic Crystal Waveguide
E. Yüce, J. Lian, S. Sokolov +5 more·Sep 29, 2017
Resonant cavities with high quality factor and small mode volume provide crucial enhancement of light–matter interactions in nanophotonic devices that transport and process classical and quantum information. The production of functional circuits cont...
Quantum interface between a transmon qubit and spins of nitrogen-vacancy centers
Yao-Wen Hu, Yipu Song, L. Duan·Sep 25, 2017
Hybrid quantum circuits combining advantages of each individual system have provided a promising platform for quantum information processing. Here we propose an experimental scheme to directly couple a transmon qubit to an individual spin in the nitr...
String order parameters for one-dimensional Floquet symmetry protected topological phases
Ajesh Kumar, P. Dumitrescu, A. Potter·Sep 25, 2017
Floquet symmetry protected topological (FSPT) phases are non-equilibrium topological phases enabled by time-periodic driving. FSPT phases of 1d chains of bosons, spins, or qubits host dynamically protected edge states that can store quantum informati...
Robust quantum network architectures and topologies for entanglement distribution
Siddhartha Das, Sumeet Khatri, J. Dowling·Sep 21, 2017
Entanglement distribution is a prerequisite for several important quantum information processing and computing tasks, such as quantum teleportation, quantum key distribution, and distributed quantum computing. In this work, we focus on two-dimensiona...
Fault-tolerant fermionic quantum computation based on color code
Ying Li·Sep 19, 2017
An important approach to fault-tolerant quantum computation is protecting logical information using quantum error correction. Usually, logical information is in the form of logical qubits, which are encoded in physical qubits using quantum error corr...
Quantum origin of life: methodological, epistemological and ontological issues
J. Quemada·Sep 15, 2017
The aim of this essay is to analyze the role of quantum mechanics as an inherent characteristic of life. During the last ten years the problem of the origin of life has become an innovative research subject approached by many authors. The essay is di...
Quantum walks on regular uniform hypergraphs
Y. Liu, Jiabin Yuan, Bo-jia Duan +1 more·Sep 15, 2017
Quantum walks on graphs have shown prioritized benefits and applications in wide areas. In some scenarios, however, it may be more natural and accurate to mandate high-order relationships for hypergraphs, due to the density of information stored inhe...
Amortization does not enhance the max-Rains information of a quantum channel
M. Berta, M. Wilde·Sep 14, 2017
Given an entanglement measure E, the entanglement of a quantum channel is defined as the largest amount of entanglement E that can be generated from the channel, if the sender and receiver are not allowed to share a quantum state before using the cha...
Error Correction of Quantum Reference Frame Information
P. Hayden, Sepehr Nezami, S. Popescu +1 more·Sep 13, 2017
The existence of quantum error correcting codes is one of the most counterintuitive and potentially technologically important discoveries of quantum information theory. However, standard error correction refers to abstract quantum information, i.e., ...
Designing Kerr interactions using multiple superconducting qubit types in a single circuit
M. Elliott, J. Joo, E. Ginossar·Sep 12, 2017
The engineering of Kerr interactions is of great interest for processing quantum information in multipartite quantum systems and for investigating many-body physics in a complex cavity-qubit network. We study how coupling multiple different types of ...
Simulating Spin Chains Using a Superconducting Circuit: Gauge Invariance, Superadiabatic Transport, and Broken Time‐Reversal Symmetry
Antti Vepsäläinen, G. Paraoanu·Sep 12, 2017
Simulation of materials by using quantum processors is envisioned to be a major direction of development in quantum information science. Here, the mathematical analogies between a triangular spin lattice with Dzyaloshinskii–Moriya coupling on one edg...
Learning to Detect Entanglement
Bingjie Wang·Sep 11, 2017
This paper introduces the forest algorithm, an algorithm that can detect entanglement through the use of decision trees generated by machine learning. Tests against similar tomography-based detection algorithms using experimental data and numerical s...
Quantum Image Processing and Its Application to Edge Detection: Theory and Experiment
X. Yao, Hengyan Wang, Zeyang Liao +12 more·Sep 11, 2017
Processing of digital images is continuously gaining in volume and relevance, with concomitant demands on data storage, transmission and processing power. Encoding the image information in quantum-mechanical systems instead of classical ones and repl...
Protecting quantum memories using coherent parity check codes
Joschka Roffe, David Headley, N. Chancellor +2 more·Sep 6, 2017
Coherent parity check (CPC) codes are a new framework for the construction of quantum error correction codes that encode multiple qubits per logical block. CPC codes have a canonical structure involving successive rounds of bit and phase parity check...
Entropy Control Architectures for Next-Generation Supercomputers
J. Uhlmann·Sep 5, 2017
Progress in high-performance computing (HPC) fundamentally requires effective thermal dissipation. At present this challenge is viewed in terms of two distinct architectural components: a computational substrate and a heat-exchange substrate. Typical...
Approaches for approximate additivity of the Holevo information of quantum channels
Felix Leditzky, Eneet Kaur, N. Datta +1 more·Sep 4, 2017
We study quantum channels that are close to another channel with weakly additive Holevo information and derive upper bounds on their classical capacity. Examples of channels with weakly additive Holevo information are entanglement-breaking channels, ...
Achieving robust and high-fidelity quantum control via spectral phase optimization
Yu Guo, Daoyi Dong, Chuan-Cun Shu·Sep 3, 2017
Achieving fast and efficient quantum state transfer is a fundamental task in physics, chemistry and quantum information science. However, the successful implementation of the perfect quantum state transfer also requires robustness under practically i...