Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,714
This Month
152
Today
0
Research Volume
15,755 papers in 12 months (-37% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
High-Dimensional Similarity Search with Quantum-Assisted Variational Autoencoder
Nicholas Gao, M. Wilson, Thomas Vandal +3 more·Jun 13, 2020
Recent progress in quantum algorithms and hardware indicates the potential importance of quantum computing in the near future. However, finding suitable application areas remains an active area of research. Quantum machine learning is touted as a pot...
Quantum Robust Fitting
Tat-Jun Chin, D. Suter, Shin-Fang Ch'ng +1 more·Jun 12, 2020
Many computer vision applications need to recover structure from imperfect measurements of the real world. The task is often solved by robustly fitting a geometric model onto noisy and outlier-contaminated data. However, recent theoretical analyses i...
Fast multi-qubit gates by adiabatic evolution in interacting excited state manifolds.
M. Khazali, K. Mølmer·Jun 12, 2020
Quantum computing and quantum simulation can be implemented by concatenation of one- and two-qubit gates and interactions. For most physical implementations, however, it may be advantageous to explore state components and interactions that depart fro...
Insulating, metallic and superconducting behavior in a single nanowire
J. N. Voss, Yannick Schon, M. Wildermuth +4 more·Jun 11, 2020
In systems with reduced dimensions quantum fluctuations have a strong influence on the electronic conduction, even at very low temperature. In superconductors this is especially interesting, since the coherent state of the superconducting electrons i...
Quantum algorithm for smoothed particle hydrodynamics
R. Au-Yeung, A.J.M. Williams, V. Kendon +1 more·Jun 11, 2020
We present a quantum computing algorithm for the smoothed particle hydrodynamics (SPH) method. We use a normalization procedure to encode the SPH operators and domain discretization in a quantum register. We then perform the SPH summation via an inne...
Protein folding in the modern era: a pedestrian's guide.
Sean Mullane·Jun 11, 2020
The prediction of protein secondary and tertiary structures from the primary amino acid sequence is both an incredibly important and incredibly difficult problem. Accurate prediction of a protein's native structure can provide critical insights about...
Symmetry-Assisted Preparation of Entangled Many-Body States on a Quantum Computer.
D. Lacroix·Jun 11, 2020
Starting from the quantum-phase-estimate (QPE) algorithm, a method is proposed to construct entangled states that describe correlated many-body systems on quantum computers. Using operators for which the discrete set of eigenvalues is known, the QPE ...
Introducing Structure to Expedite Quantum Search
Marcin Bria'nski, Jan Gwinner, Vladyslav Hlembotskyi +3 more·Jun 10, 2020
We present a novel quantum algorithm for solving the unstructured search problem with one marked element. Our algorithm allows generating quantum circuits that use asymptotically fewer additional quantum gates than the famous Grover's algorithm and m...
Improved quantum algorithm for A-optimal projection
Shijie Pan, Lin-Chun Wan, Hailing Liu +4 more·Jun 10, 2020
Dimensionality reduction (DR) algorithms, which reduce the dimensionality of a given data set while preserving the information of original data set as well as possible, play an important role in machine learning and data mining. Duan et al. proposed ...
Photonic Bound States in the Continuum in Si Structures with the Self‐Assembled Ge Nanoislands
S. Dyakov, M. Stepikhova, A. Bogdanov +6 more·Jun 10, 2020
Germanium self‐assembled nanoislands and quantum dots are very prospective for CMOS‐compatible optoelectronic integrated circuits but their photoluminescence (PL) intensity is still insufficient for many practical applications. Here, it is demonstrat...
Majorana-induced DC Shapiro steps in topological Josephson junctions
Sang-Jun Choi, A. Calzona, B. Trauzettel·Jun 10, 2020
The demonstration of the non-Abelian properties of Majorana bound states (MBS) is a crucial step toward topological quantum computing. We theoretically investigate how Majorana fusion rules manifest themselves in the current-voltage characteristics o...
Coherent Ising machines—Quantum optics and neural network Perspectives
Yoshihisa Yamamoto, T. Leleu, S. Ganguli +1 more·Jun 10, 2020
A coherent Ising machine (CIM) is a network of optical parametric oscillators (OPOs), in which the “strongest” collective mode of oscillation at well above threshold corresponds to an optimum solution of a given Ising problem. When a pump rate or net...
Enhancing VQE Convergence for Optimization Problems with Problem-Specific Parameterized Quantum Circuits
A. Matsuo, Yudai Suzuki, Ikko Hamamura +1 more·Jun 10, 2020
The Variational Quantum Eigensolver (VQE) algorithm is gaining interest for its potential use in near-term quantum devices. In the VQE algorithm, parameterized quantum circuits (PQCs) are employed to prepare quantum states, which are then utilized to...
Quantifying entanglement preservability of experimental processes
Shih‐Hsuan Chen, Meng-Lok Ng, Che-Ming Li·Jun 9, 2020
Preserving entanglement is a crucial dynamical process for entanglement-based quantum computation and quantum-information processes, such as one-way quantum computing and quantum key distribution. However, how to quantify the ability of an experiment...
Determining quantum phase diagrams of topological Kitaev-inspired models on NISQ quantum hardware
X. Xiao, J. Freericks, A. Kemper·Jun 9, 2020
Topological protection is employed in fault-tolerant error correction and in developing quantum algorithms with topological qubits. But, topological protection intrinsic to models being simulated, also robustly protects calculations, even on NISQ har...
Quantum Legendre-Fenchel Transform
David Sutter, G. Nannicini, Tobias Sutter +1 more·Jun 8, 2020
We present a quantum algorithm to compute the discrete Legendre-Fenchel transform. Given access to a convex function evaluated at $N$ points, the algorithm outputs a quantum-mechanical representation of its corresponding discrete Legendre-Fenchel tra...
The Snake Optimizer for Learning Quantum Processor Control Parameters
P. Klimov, J. Kelly, J. Martinis +1 more·Jun 8, 2020
High performance quantum computing requires a calibration system that learns optimal control parameters much faster than system drift. In some cases, the learning procedure requires solving complex optimization problems that are non-convex, high-dime...
Materials loss measurements using superconducting microwave resonators.
C. H. McRae, Haozhi Wang, Jiansong Gao +5 more·Jun 8, 2020
The performance of superconducting circuits for quantum computing is limited by materials losses. In particular, coherence times are typically bounded by two-level system (TLS) losses at single photon powers and millikelvin temperatures. The identifi...
Engineering the Cost Function of a Variational Quantum Algorithm for Implementation on Near-Term Devices
S. Premaratne, A. Matsuura·Jun 6, 2020
Variational hybrid quantum-classical algorithms are some of the most promising workloads for near-term quantum computers without error correction. The aim of these variational algorithms is to guide the quantum system to a target state that minimizes...
Quantum Metamaterials: Applications in quantum information science
S. Uriri, Y. Ismail, Francesco Petruccione·Jun 6, 2020
Metamaterials are artificially engineered periodic structures with exceptional optical properties that are not found in conventional materials. However, this definition of metamaterials can be extended if we introduce a quantum degree of freedom by a...