Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,714
This Month
152
Today
0
Research Volume
15,751 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
Analyzing photon-counting based entanglement generation between solid-state spin qubits by unraveling the master equation
S. Wein, Jia-Wei Ji, Yu-Feng Wu +3 more·Apr 9, 2020
We analyze and compare three different schemes that can be used to generate entanglement between spin qubits in optically-active single solid-state quantum systems. Each scheme is based on first generating entanglement between the spin degree of free...
Architecting Noisy Intermediate-Scale Trapped Ion Quantum Computers
Prakash Murali, D. Debroy, K. Brown +1 more·Apr 9, 2020
Trapped ions (TI) are a leading candidate for building Noisy Intermediate-Scale Quantum (NISQ) hardware. TI qubits have fundamental advantages over other technologies such as superconducting qubits, including high qubit quality, coherence and connect...
Fault-tolerant weighted union-find decoding on the toric code
Shilin Huang, M. Newman, K. Brown·Apr 9, 2020
Quantum error correction requires decoders that are both accurate and efficient. To this end, union-find decoding has emerged as a promising candidate for error correction on the surface code. In this work, we benchmark a weighted variant of the unio...
Quantum transduction of optical photons from a superconducting qubit
M. Mirhosseini, A. Sipahigil, M. Kalaee +1 more·Apr 9, 2020
Bidirectional conversion of electrical and optical signals lies at the foundation of the global internet. Such converters are employed at repeater stations to extend the reach of long-haul fiber optic communication systems and within data centers to ...
NISQ+: Boosting quantum computing power by approximating quantum error correction
Adam Holmes, M. Jokar, G. Pasandi +3 more·Apr 9, 2020
Quantum computers are growing in size, and design decisions are being made now that attempt to squeeze more computation out of these machines. In this spirit, we design a method to boost the computational power of nearterm quantum computers by adapti...
Hartree-Fock on a superconducting qubit quantum computer
F. Arute, K. Arya, R. Babbush +78 more·Apr 8, 2020
Twelve-qubit quantum computing for chemistry Accurate electronic structure calculations are considered one of the most anticipated applications of quantum computing that will revolutionize theoretical chemistry and other related fields. Using the Goo...
Tensor network models of AdS/qCFT
A. Jahn, Z. Zimbor'as, J. Eisert·Apr 8, 2020
The study of critical quantum many-body systems through conformal field theory (CFT) is one of the pillars of modern quantum physics. Certain CFTs are also understood to be dual to higher-dimensional theories of gravity via the anti-de Sitter/conform...
Resource-Optimized Fermionic Local-Hamiltonian Simulation on Quantum Computer for Quantum Chemistry
Qingfeng Wang, Ming Li, C. Monroe +1 more·Apr 8, 2020
The ability to simulate a fermionic system on a quantum computer is expected to revolutionize chemical engineering, materials design, nuclear physics, to name a few. Thus, optimizing the simulation circuits is of significance in harnessing the power ...
Fast digital methods for adiabatic state preparation
Kianna Wan, Isaac H. Kim·Apr 8, 2020
We present quantum algorithms for adiabatic state preparation on a gate-based quantum computer, with complexity polylogarithmic in the inverse error. This constitutes an exponential improvement over existing methods, which achieve subpolynomial error...
Exponentially faster implementations of Select(H) for fermionic Hamiltonians
Kianna Wan·Apr 8, 2020
We present a simple but general framework for constructing quantum circuits that implement the multiply-controlled unitary $\text{Select}(H) \equiv \sum_\ell |\ell\rangle\langle\ell|\otimes H_\ell$, where $H = \sum_\ell H_\ell$ is the Jordan-Wigner t...
Quantum approximate optimization of non-planar graph problems on a planar superconducting processor
F. Arute, K. Arya, R. Babbush +81 more·Apr 8, 2020
Faster algorithms for combinatorial optimization could prove transformative for diverse areas such as logistics, finance and machine learning. Accordingly, the possibility of quantum enhanced optimization has driven much interest in quantum technolog...
On the dynamics of a quantum coherent feedback network of cavity-mediated double quantum dot qubits
Zhiyuan Dong, W. Cui, Guofeng Zhang·Apr 8, 2020
The purpose of this paper is to present a comprehensive study of a coherent feedback network where the main component consists of two distant double quantum dot (DQD) qubits which are directly coupled to a cavity. This main component has recently bee...
Hybrid quantum annealing via molecular dynamics
H. Irie, Haozhao Liang, T. Doi +2 more·Apr 8, 2020
A novel quantum–classical hybrid scheme is proposed to efficiently solve large-scale combinatorial optimization problems. The key concept is to introduce a Hamiltonian dynamics of the classical flux variables associated with the quantum spins of the ...
Methods for accelerating geospatial data processing using quantum computers
Maxwell P. Henderson, Jarred Gallina, M. Brett·Apr 7, 2020
Quantum computing is a transformative technology with the potential to enhance operations in the space industry through the acceleration of optimization and machine learning processes. Machine learning processes enable automated image classification ...
Constructing clock-transition-based two-qubit gates from dimers of molecular nanomagnets
C. A. Collett, P. Santini, S. Carretta +1 more·Apr 7, 2020
A good qubit must have a coherence time long enough for gate operations to be performed. Avoided level crossings allow for clock transitions in which coherence is enhanced by the insensitivity of the transition to fluctuations in external fields. Bec...
Crowdsourcing human common sense for quantum control
Jesper Hasseriis Mohr Jensen, M. Gajdacz, Shaeema Zaman Ahmed +6 more·Apr 7, 2020
Citizen science methodologies have over the past decade been applied with great success to help solve highly complex numerical challenges. Here, we take early steps in the quantum physics arena by introducing a citizen science game, Quantum Moves 2, ...
Universal topological quantum computation with strongly correlated Majorana edge modes
Ye-Min Zhan, Yuge Chen, Bin Chen +3 more·Apr 7, 2020
Majorana-based quantum gates are not complete for performing universal topological quantum computation while Fibonacci-based gates are difficult to be realized electronically and hardly coincide with the conventional quantum circuit models. In refere...
Drawing together quantum control and quantum tomography principles
C. Arenz, H. Rabitz·Apr 6, 2020
The ability to control quantum systems using shaped fields as well as to infer the states of such controlled systems from measurement data are key tasks in the design and operation of quantum devices. Here we associate the success of performing both ...
Distant spin entanglement via fast and coherent electron shuttling
B. Jadot, P. Mortemousque, E. Chanrion +6 more·Apr 6, 2020
In the quest for large-scale quantum computing, networked quantum computers offer a natural path towards scalability. While recent experiments have demonstrated nearest neighbour entanglement for electron spin qubits in semiconductors, on-chip long-d...
Classical Optimizers for Noisy Intermediate-Scale Quantum Devices
W. Lavrijsen, Ana Tudor, Juliane Müller +2 more·Apr 6, 2020
We present a collection of optimizers tuned for usage on Noisy Intermediate-Scale Quantum (NISQ) devices. Optimizers have a range of applications in quantum computing, including the Variational Quantum Eigensolver (VQE) and Quantum Approximate Optimi...