Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,714
This Month
152
Today
0
Research Volume
15,735 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
Fast universal logical gates on topologically encoded qubits at arbitrarily large code distances
Guanyu Zhu, A. Lavasani, M. Barkeshli·Jun 6, 2018
A fundamental question in the theory of quantum computation is to understand the ultimate space-time resource costs for performing a universal set of logical quantum gates to arbitrary precision. To date, all proposed schemes for implementing a unive...
Fault-Tolerant Logical Gates in the IBM Quantum Experience.
R. Harper, S. Flammia·Jun 6, 2018
Quantum computers will require encoding of quantum information to protect them from noise. Fault-tolerant quantum computing architectures illustrate how this might be done but have not yet shown a conclusive practical advantage. Here we demonstrate t...
Problems and solutions from the fourth International Students’ Olympiad in Cryptography (NSUCRYPTO)
A. Gorodilova, S. Agievich, C. Carlet +10 more·Jun 6, 2018
Abstract Mathematical problems and their solutions from the fourth International Students’ Olympiad in cryptography (NSUCRYPTO-2017) are presented. We consider problems related to attacks on ciphers and hash functions, cryptographic Boolean functions...
Addressing hard classical problems with Adiabatically Assisted Variational Quantum Eigensolvers
A. García-Sáez, J. Latorre·Jun 6, 2018
We present a hybrid classical-quantum algorithm to solve optimization problems in current quantum computers, whose basic idea is to assist variational quantum eigensolvers (VQE) with adiabatic change of the Hamiltonian. The rational for this new algo...
Rent's rule and extensibility in quantum computing
D. P. Franke, J. Clarke, L. Vandersypen +1 more·Jun 6, 2018
Abstract Quantum computing is on the verge of a transition from fundamental research to practical applications. Yet, to make the step to large-scale quantum computation, an extensible qubit system has to be developed. In classical semiconductor techn...
Quantum singular value transformation and beyond: exponential improvements for quantum matrix arithmetics
András Gilyén, Yuan Su, G. Low +1 more·Jun 5, 2018
An n-qubit quantum circuit performs a unitary operation on an exponentially large, 2n-dimensional, Hilbert space, which is a major source of quantum speed-ups. We develop a new “Quantum singular value transformation” algorithm that can directly harne...
Modeling noise and error correction for Majorana-based quantum computing
Christina Knapp, M. Beverland, D. Pikulin +1 more·Jun 4, 2018
Majorana-based quantum computing seeks to use the non-local nature of Majorana zero modes to store and manipulate quantum information in a topologically protected way. While noise is anticipated to be significantly suppressed in such systems, finite ...
Bayesian estimation for quantum sensing in the absence of single-shot detection
H. T. Dinani, D. Berry, Raúl B. Gonzalez +2 more·Jun 4, 2018
Quantum information protocols, such as quantum error correction and quantum phase estimation, have been widely used to enhance the performance of quantum sensors. While these protocols have relied on single-shot detection, in most practical applicati...
Towards the Practical Application of Near-Term Quantum Computers in Quantum Chemistry Simulations: A Problem Decomposition Approach
T. Yamazaki, S. Matsuura, A. Narimani +2 more·Jun 4, 2018
With the aim of establishing a framework to efficiently perform the practical application of quantum chemistry simulation on near-term quantum devices, we envision a hybrid quantum--classical framework for leveraging problem decomposition (PD) techni...
Run Procrustes, Run! On the convergence of accelerated Procrustes Flow
Anastasios Kyrillidis, Shashanka Ubaru, G. Kollias +1 more·Jun 1, 2018
In this work, we present theoretical results on the convergence of non-convex accelerated gradient descent in matrix factorization models. The technique is applied to matrix sensing problems with squared loss, for the estimation of a rank $r$ optimal...
Adversarial quantum circuit learning for pure state approximation
Marcello Benedetti, Edward Grant, Leonard Wossnig +1 more·Jun 1, 2018
Adversarial learning is one of the most successful approaches to modeling high-dimensional probability distributions from data. The quantum computing community has recently begun to generalize this idea and to look for potential applications. In this...
High efficiency postprocessing for continuous-variable quantum key distribution: using all raw keys for parameter estimation and key extraction
Xiangyu Wang, Yichen Zhang, Song Yu +1 more·Jun 1, 2018
High efficiency postprocessing of continuous-variable quantum key distribution (CV-QKD) system has a significant impact on the secret key rate and transmission distance of the system. For a quantum channel with unknown prior characteristics, we have ...
General Representation of Nonlinear Green's Function for Second Order Differential Equations Nonlinear in the First Derivative
M. Frasca, A. Khurshudyan·Jun 1, 2018
The Green's function method which has been originally proposed for linear systems has several extensions to the case of nonlinear equations. A recent extension has been proposed to deal with certain applications in quantum field theory. The general s...
Constrained Variational Quantum Eigensolver: Quantum Computer Search Engine in the Fock Space.
I. G. Ryabinkin, Scott N. Genin, A. Izmaylov·Jun 1, 2018
Variational quantum eigensolver (VQE) is an efficient computational method promising chemical accuracy in electronic structure calculations on a universal-gate quantum computer. However, such a simple task as computing the electronic energy of a hydr...
All-Electrical Control of a Hybrid Electron Spin/Valley Quantum Bit in SOI CMOS Technology
L. Bourdet, L. Hutin, B. Bertrand +14 more·Jun 1, 2018
We fabricated quantum dot devices using a standard SOI CMOS process flow and demonstrated that the spin of confined electrons could be controlled via a local electrical-field excitation, owing to intervalley spin–orbit coupling. We discuss that modul...
Relation between fermionic and qubit mean fields in the electronic structure problem.
I. G. Ryabinkin, Scott N. Genin, A. Izmaylov·Jun 1, 2018
For quantum computing applications, the electronic Hamiltonian for the electronic structure problem needs to be unitarily transformed into a qubit form. We found that mean-field procedures on the original electronic Hamiltonian and on its transformed...
Quantifying Memory Capacity as a Quantum Thermodynamic Resource.
Varun Narasimhachar, Jayne Thompson, Jiajun Ma +2 more·May 31, 2018
The information-carrying capacity of a memory is known to be a thermodynamic resource facilitating the conversion of heat to work. Szilard's engine explicates this connection through a toy example involving an energy-degenerate two-state memory. We d...
On the depth overhead incurred when running quantum algorithms on near-term quantum computers with limited qubit connectivity
Steven Herbert·May 31, 2018
This paper addresses the problem of finding the depth overhead that will be incurred when running quantum circuits on near-term quantum computers. Specifically, it is envisaged that near-term quantum computers will have low qubit connectivity: each q...
Optimizing Quantum Circuits for Arithmetic
Thomas Häner, M. Rötteler, K. Svore·May 31, 2018
Many quantum algorithms make use of oracles which evaluate classical functions on a superposition of inputs. In order to facilitate implementation, testing, and resource estimation of such algorithms, we present quantum circuits for evaluating functi...
Improving the state selectivity of field ionization with quantum control
Vincent C. Gregoric, Jason J. Bennett, B. Gualtieri +5 more·May 30, 2018
The electron signals from the field ionization of two closely-spaced Rydberg states of \mbox{rubidium-85} are separated using quantum control. In selective field ionization, the state distribution of a collection of Rydberg atoms is measured by ioniz...