Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,907 papers in 12 months (-5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hamiltonian engineering of general two-body spin-1/2 interactions
K. Attar, D. Farfurnik, N. Bar-Gill·Jun 2, 2019
Spin Hamiltonian engineering in solid-state systems plays a key role in a variety of applications ranging from quantum information processing and quantum simulations to novel studies of many-body physics. By analyzing the irreducible form of a genera...
General-Purpose Quantum Circuit Simulator with Projected Entangled-Pair States and the Quantum Supremacy Frontier.
Chu Guo, Yong Liu, Min Xiong +12 more·May 21, 2019
Recent advances on quantum computing hardware have pushed quantum computing to the verge of quantum supremacy. Here, we bring together many-body quantum physics and quantum computing by using a method for strongly interacting two-dimensional systems,...
Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
Ahmed Omran, H. Levine, A. Keesling +16 more·May 14, 2019
Entanglement goes large The success of quantum computing relies on the ability to entangle large-scale systems. Various platforms are being pursued, with architectures based on superconducting qubits and trapped atoms being the most advanced. By enta...
Benchmarking quantum processors with a single qubit
Oktay Göktaş, W. Tham, Kent Bonsma-Fisher +1 more·May 14, 2019
The first generation of small noisy quantum processors have recently become available to non-specialists who are not required to understand specifics of the physical platforms and, in particular, the types and sources of noise. As such, it is useful ...
Design Space Exploration as Quantified Satisfaction
A. Feldman, J. Kleer, I. Matei·May 7, 2019
We propose novel algorithms for design and design space exploration. The designs computed by these algorithms are compositions of function types specified in component libraries. Our algorithms reduce the design problem to quantified satisfiability a...
Automated generation of Kochen-Specker sets
M. Pavičić, Mordecai Waegell, N. Megill +1 more·May 1, 2019
Quantum contextuality turns out to be a necessary resource for universal quantum computation and also has applications in quantum communication. Thus it becomes important to generate contextual sets of arbitrary structure and complexity to enable a v...
Generation of multicomponent atomic Schrödinger cat states of up to 20 qubits
Chao Song, Kai Xu, Hekang Li +13 more·May 1, 2019
Entanglement goes large The success of quantum computing relies on the ability to entangle large-scale systems. Various platforms are being pursued, with architectures based on superconducting qubits and trapped atoms being the most advanced. By enta...
Quantum link bootstrapping using a RuleSet-based communication protocol
Takaaki Matsuo, Cl'ement Durand, Rodney Van Meter·Apr 18, 2019
Establishing end-to-end quantum connections requires quantified link characteristics, and operations need to coordinate decision making between nodes across a network. We introduce the RuleSet-based communication protocol for supporting quantum opera...
Generation of a time-frequency grid state with integrated biphoton frequency combs
N. Fabre, G. Maltese, F. Appas +9 more·Apr 2, 2019
Encoding quantum information in continuous variables is intrinsically faulty. Nevertheless, redundant qubits can be used for error correction, as proposed by Gottesman et al. [Phys. Rev. A 64 012310 (2001)]. We show how to experimentally implement th...
Enhanced Multiqubit Phase Estimation in Noisy Environments by Local Encoding.
Massimiliano Proietti, M. Ringbauer, Francesco Graffitti +7 more·Mar 21, 2019
The first generation of multiqubit quantum technologies will consist of noisy, intermediate-scale devices for which active error correction remains out of reach. To exploit such devices, it is thus imperative to use passive error protection that meet...
Generation of time-domain-multiplexed two-dimensional cluster state
W. Asavanant, Y. Shiozawa, S. Yokoyama +8 more·Mar 10, 2019
Generating large-scale cluster states The development of a practical quantum computer requires universality, scalability, and fault tolerance. Although much progress is being made in circuit platforms in which arrays of qubits are addressed and manip...
A Lightweight McEliece Cryptosystem Co-processor Design
Lake Bu, R. Agrawal, Hai Cheng +1 more·Mar 9, 2019
Due to the rapid advances in the development of quantum computers and their susceptibility to errors, there is a renewed interest in error correction algorithms. In particular, error correcting code-based cryptosystems have reemerged as a highly desi...
Satellite Quantum Communications When Man-in-the-Middle Attacks Are Excluded
Tom Vergoossen, R. Bedington, J. Grieve +1 more·Mar 6, 2019
An application of quantum communications is the transmission of qubits to create shared symmetric encryption keys in a process called quantum key distribution (QKD). Contrary to public-private key encryption, symmetric encryption is considered safe f...
Multipartite Entanglement Generation and Contextuality Tests Using Nondestructive Three-Qubit Parity Measurements.
S. V. Dam, J. Cramer, T. Taminiau +1 more·Feb 23, 2019
We report on the realization and application of nondestructive three-qubit parity measurements on nuclear spin qubits in diamond. We use high-fidelity quantum logic to map the parity of the joint state of three nuclear spin qubits onto an electronic ...
A Tight Lower Bound For Non-Coherent Index Erasure
N. Lindzey, A. Rosmanis·Feb 19, 2019
The index erasure problem is a quantum state generation problem that asks a quantum computer to prepare a uniform superposition over the image of an injective function given by an oracle. We prove a tight $\Omega(\sqrt{n})$ lower bound on the quantum...
A quantum compiler for qudits of prime dimension greater than 3.
Luke E Heyfron, E. Campbell·Feb 14, 2019
Prevailing proposals for the first generation of quantum computers make use of 2-level systems, or qubits, as the fundamental unit of quantum information. However, recent innovations in quantum error correction and magic state distillation protocols ...
Multi-matrix error estimation and reconciliation for quantum key distribution.
Chaohui Gao, Dong Jiang, Yu Guo +1 more·Feb 14, 2019
Post-processing is a significant step in quantum key distribution (QKD), which is used for correcting the quantum-channel noise errors and distilling identical corrected keys between two distant legitimate parties. Efficient error reconciliation prot...
Conversion of Gaussian states to non-Gaussian states using photon-number-resolving detectors
D. Su, C. Myers, K. Sabapathy·Feb 6, 2019
Generation of high fidelity photonic non-Gaussian states is a crucial ingredient for universal quantum computation using continous-variable platforms, yet it remains a challenge to do so efficiently. We present a general framework for a probabilistic...
Efficient representation of Gaussian states for multimode non-Gaussian quantum state engineering via subtraction of arbitrary number of photons
C. Gagatsos, S. Guha·Feb 4, 2019
We introduce a complete description of a multi-mode bosonic quantum state in the coherent-state basis (which in this work is denoted as "$K$" function ), which---up to a phase---is the square root of the well-known Husimi "$Q$" representation. We exp...
Robust implementation of generative modeling with parametrized quantum circuits
Vicente Leyton-Ortega, A. Perdomo-Ortiz, O. Perdomo·Jan 23, 2019
Although the performance of hybrid quantum-classical algorithms is highly dependent on the selection of the classical optimizer and the circuit ansätze (Benedetti et al, npj Quantum Inf 5:45, 2019; Hamilton et al, 2018; Zhu et al, 2018), a robust and...