Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,188
This Month
0
Today
0
Research Volume
13,351 papers in 12 months (+7% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Improved Fault-Tolerant Quantum Simulation of Condensed-Phase Correlated Electrons via Trotterization
I. Kivlichan, C. Gidney, D. Berry +9 more·Feb 27, 2019
Recent work has deployed linear combinations of unitaries techniques to reduce the cost of fault-tolerant quantum simulations of correlated electron models. Here, we show that one can sometimes improve upon those results with optimized implementation...
Quantum computer with cold ions in the Aubry pinned phase
D. Shepelyansky·Feb 26, 2019
It is proposed to modify the Cirac-Zoller proposal of quantum computer with cold ions in a global oscillator trap potential by adding a periodic potential with an incommensurate average ratio of number of ions to number of periods being order of unit...
Quantum learning Boolean linear functions w.r.t. product distributions
Matthias C. Caro·Feb 23, 2019
The problem of learning Boolean linear functions from quantum examples w.r.t. the uniform distribution can be solved on a quantum computer using the Bernstein–Vazirani algorithm (Bernstein and Vazirani, in: Kosaraju (ed) Proceedings of the twenty-fif...
Deep reinforcement learning for quantum gate control
Zheng An, Duan-Lu Zhou·Feb 22, 2019
How to implement multi-qubit gates efficiently with high precision is essential for realizing universal fault-tolerant computing. For a physical system with some external controllable parameters, it is a great challenge to control the time dependence...
Characterizing large-scale quantum computers via cycle benchmarking
A. Erhard, Joel J. Wallman, L. Postler +7 more·Feb 22, 2019
Quantum computers promise to solve certain problems more efficiently than their digital counterparts. A major challenge towards practically useful quantum computing is characterizing and reducing the various errors that accumulate during an algorithm...
Minimal Time Robust Control for Two Superconducting Qubits
Niril George, Joseph L. Allen, Robert Kosut +1 more·Feb 21, 2019
High-fidelity quantum gates are crucial for achieving fault-tolerant quantum computing; however, decoherence significantly reduces gate fidelities during long operation times. Although optimal control techniques can theoretically minimize these opera...
Parallel quantum trajectories via forking for sampling without redundancy
D. Park, I. Sinayskiy, M. Fingerhuth +2 more·Feb 21, 2019
The computational cost of preparing a quantum state can be substantial depending on the structure of data to be encoded. Many quantum algorithms require repeated sampling to find the answer, mandating reconstruction of the same input state for every ...
Continuous Symmetries and Approximate Quantum Error Correction
P. Faist, Sepehr Nezami, Victor V. Albert +4 more·Feb 20, 2019
Quantum error correction and symmetry arise in many areas of physics, including many-body systems, metrology in the presence of noise, fault-tolerant computation, and holographic quantum gravity. Here, we study the compatibility of these two importan...
Continuous groups of transversal gates for quantum error correcting codes from finite clock reference frames
M. P. Woods, Álvaro M. Alhambra·Feb 20, 2019
Following the introduction of the task of reference frame errorcorrection \cite{hayden2017error}, we show how, by using reference frame alignment with clocks, one can add a continuous Abelian group of transversal logical gates to any error-correcting...
Micromotion-enhanced fast entangling gates for trapped-ion quantum computing
Alexander K. Ratcliffe, L. Oberg, J. Hope·Feb 18, 2019
RF-induced micromotion in trapped ion systems is typically minimised or circumvented to avoid off-resonant couplings for adiabatic processes such as multi-ion gate operations. Non-adiabatic entangling gates (so-called `fast gates') do not require res...
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 ...
High-Speed, Low-Crosstalk Detection of a Trapped $^{171}$Yb$^+$ Ion Ancilla Qubit using Superconducting Nanowire Single Photon Detectors
S. Crain, Clinton Cahall, Geert Vrijsen +5 more·Feb 11, 2019
Qubits used in quantum computing tend to suffer from errors, either from the qubit interacting with the environment, or from imperfect control when quantum logic gates are applied. Fault-tolerant construction based on quantum error correcting codes (...
Clifford recompilation for faster classical simulation of quantum circuits
Hammam Qassim, Joel J. Wallman, J. Emerson·Feb 6, 2019
Simulating quantum circuits classically is an important area of research in quantum information, with applications in computational complexity and validation of quantum devices. One of the state-of-the-art simulators, that of Bravyi et al, utilizes a...
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...
Optimized Compilation of Aggregated Instructions for Realistic Quantum Computers
Yunong Shi, N. Leung, P. Gokhale +4 more·Feb 4, 2019
Recent developments in engineering and algorithms have made real-world applications in quantum computing possible in the near future. Existing quantum programming languages and compilers use a quantum assembly language composed of 1- and 2-qubit (qua...
Optically controlled entangling gates in randomly doped silicon
E. Crane, Thomas F. Crane, A. Schuckert +4 more·Feb 1, 2019
Randomly-doped silicon has many competitive advantages for quantum computation; not only is it fast to fabricate but it could naturally contain high numbers of qubits and logic gates as a function of doping densities. We determine the densities of en...
A Unitary Weights Based One-Iteration Quantum Perceptron Algorithm for Non-Ideal Training Sets
Wenjie Liu, Peipei Gao, Yuxiang Wang +2 more·Jan 31, 2019
In order to solve the problem of non-ideal training sets (i.e., the less-complete or over-complete sets) and implement one-iteration learning, a novel efficient quantum perceptron algorithm based on unitary weights is proposed, where the singular val...
Demonstration of a parametrically activated entangling gate protected from flux noise
Sabrina Hong, A. Papageorge, P. Sivarajah +7 more·Jan 23, 2019
In state-of-the-art quantum computing platforms, including superconducting qubits and trapped ions, imperfections in the 2-qubit entangling gates are the dominant contributions of error to system-wide performance. Recently, a novel 2-qubit parametric...
Separation and approximate separation of multipartite quantum gates
K. He, Shusen Liu, J. Hou·Jan 15, 2019
The number of qubits of current quantum computers is one of the most dominating restrictions for applications. So it is naturally conceived to use two or more small capacity quantum computers to form a larger capacity quantum computing system by quan...
Quantum computing with sine-Gordon qubits
Dongsheng Wang·Jan 14, 2019
A universal quantum computing scheme, with a universal set of logical gates, is proposed based on networks of 1D quantum systems. The encoding of information is in terms of universal features of gapped phases, for which effective field theories such ...