Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,188
This Month
0
Today
0
Research Volume
13,354 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
Shallow-circuit variational quantum eigensolver based on symmetry-inspired Hilbert space partitioning for quantum chemical calculations
Feng Zhang, N. Gomes, Noah F. Berthusen +4 more·Jun 19, 2020
Development of resource-friendly quantum algorithms remains highly desirable for noisy intermediate-scale quantum computing. Based on the variational quantum eigensolver (VQE) with unitary coupled cluster ansatz, we demonstrate that partitioning of t...
Continuous Variable Single Mode Quantum Decoder for Image Reconstruction and Denoising
J. Basani, A. Bhattacherjee·Jun 19, 2020
Quantum computation using optical modes has been well-established in its ability to construct deep neural networks. We introduce a model that is the quantum analogue of the classical autoencoder - a neural network model that can reconstruct its input...
Floquet-enhanced spin swaps
Haifeng Qiao, Y. Kandel, J. Dyke +5 more·Jun 19, 2020
The transfer of information between quantum systems is essential for quantum communication and computation. In quantum computers, high connectivity between qubits can improve the efficiency of algorithms, assist in error correction, and enable high-f...
Overhead of the non-local-to-local channel decomposition by quasiprobability sampling
K. Mitarai, K. Fujii·Jun 19, 2020
As the hardware technology for quantum computing advances, its possible applications are actively searched and developed. However, such applications still suffer from the noise on quantum devices, in particular when using two-qubit gates whose fideli...
Demonstration of an All-Microwave Controlled-Phase Gate between Far-Detuned Qubits
Sebastian Krinner, P. Kurpiers, B. Royer +9 more·Jun 18, 2020
A challenge in building large-scale superconducting quantum processors is to find the right balance between coherence, qubit addressability, qubit-qubit coupling strength, circuit complexity and the number of required control lines. Leading all-micro...
Entanglement transition in the projective transverse field Ising model
Nicolai Lang, H. Büchler·Jun 17, 2020
Discrete quantum trajectories of systems under random unitary gates and projective measurements have been shown to feature transitions in the entanglement scaling that are not encoded in the density matrix. In this paper, we study the projective tran...
Accelerated variational algorithms for digital quantum simulation of many-body ground states
Chufan Lyu, V. Montenegro, A. Bayat·Jun 16, 2020
One of the key applications for the emerging quantum simulators is to emulate the ground state of many-body systems, as it is of great interest in various fields from condensed matter physics to material science. Traditionally, in an analog sense, ad...
Blind quantum computation for a user who only performs single-qubit gates
Qin Li, Chengdong Liu, Yu Peng +2 more·Jun 14, 2020
Blind quantum computation (BQC) allows a user who has limited quantum capability to complete a quantum computational task with the aid of a remote quantum server, such that the user's input, output, and even the algorithm can be kept hidden from the ...
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...
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...
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...
Lowering the T-depth of Quantum Circuits By Reducing the Multiplicative Depth Of Logic Networks
Thomas Häner, Mathias Soeken·Jun 6, 2020
The multiplicative depth of a logic network over the gate basis $\{\land, \oplus, \neg\}$ is the largest number of $\land$ gates on any path from a primary input to a primary output in the network. We describe a dynamic programming based logic synthe...
Entangling logical qubits with lattice surgery
A. Erhard, Hendrik Poulsen Nautrup, M. Meth +10 more·Jun 4, 2020
The development of quantum computing architectures from early designs and current noisy devices to fully fledged quantum computers hinges on achieving fault tolerance using quantum error correction1–4. However, these correction capabilities come with...
Simulating integrated photonic gates using FDTD
A. Dragomir, Cristian Ivan, R. Ionicioiu·Jun 4, 2020
Quantum technologies, such as quantum communication, quantum sensing, quantum imaging and quantum computation, need a platform which is flexible, miniaturisable and works at room temperature. Integrated photonics is a promising and fast-developing pl...
Quantum process tomography with unsupervised learning and tensor networks
G. Torlai, C. J. Wood, Atithi Acharya +3 more·Jun 3, 2020
The impressive pace of advance of quantum technology calls for robust and scalable techniques for the characterization and validation of quantum hardware. Quantum process tomography, the reconstruction of an unknown quantum channel from measurement d...
Asymmetric Blockade and Multiqubit Gates via Dipole-Dipole Interactions.
Jeremy T. Young, P. Bienias, R. Belyansky +2 more·Jun 3, 2020
Because of their strong and tunable interactions, Rydberg atoms can be used to realize fast two-qubit entangling gates. We propose a generalization of a generic two-qubit Rydberg-blockade gate to multiqubit Rydberg-blockade gates that involve both ma...
Quantum state preparation with multiplicative amplitude transduction
Y. Iiyama·Jun 1, 2020
Quantum state preparation is an important class of quantum algorithms that is employed as a black-box subroutine in many algorithms, or used by itself to generate arbitrary probability distributions. We present a novel state preparation method that u...
Efficient quantum circuits for quantum computational chemistry
Y. Yordanov, D. Arvidsson-Shukur, C. Barnes·May 29, 2020
The VQE (variational quantum eigensolver) is a hybrid classical-quantum algorithm that can determine the energy eigenvalues of molecules by solving the electronic structure problem. Compared to other purely quantum algorithms, the VQE requires shallo...
Constructions for Quantum Indistinguishability Obfuscation
Anne Broadbent, R. Kazmi·May 29, 2020
An indistinguishability obfuscator is a probabilistic polynomial-time algorithm that takes a circuit as input and outputs a new circuit that has the same functionality as the input circuit, such that for any two circuits of the same size that compute...
Architecture and noise analysis of continuous-variable quantum gates using two-dimensional cluster states
M. V. Larsen, Jonas S Neergaard-Nielsen, U. Andersen·May 27, 2020
Due to its unique scalability potential, continuous variable quantum optics is a promising platform for large scale quantum computing and quantum simulation. In particular, very large cluster states with a two-dimensional topology that are suitable f...