Papers

E. Campbell·May 23, 2018

Single-shot error correction is a technique for correcting physical errors using only a single round of noisy check measurements, such that any residual noise affects a small number of qubits. We propose a general theory of single-shot error correcti...

Stefanie J. Beale, Joel J. Wallman, Mauricio Gutiérrez +2 more·May 22, 2018

Typical studies of quantum error correction assume probabilistic Pauli noise, largely because it is relatively easy to analyze and simulate. Consequently, the effective logical noise due to physically realistic coherent errors is relatively unknown. ...

P. Eder, T. Ramos, J. Goetz +11 more·May 22, 2018

Quantum microwave photonics aims at generating, routing, and manipulating propagating quantum microwave fields in the spirit of optical photonics. To this end, the strong nonlinearities of superconducting quantum circuits can be used to either improv...

Iordanis Kerenidis, Alessandro Luongo·May 22, 2018

Quantum machine learning carries the promise to revolutionize information and communication technologies. While a number of quantum algorithms with potential exponential speedups have been proposed already, it is quite difficult to provide convincing...

E. Huang, A. Doherty, S. Flammia·May 21, 2018

We compare the performance of quantum error correcting codes when memory errors are unitary with the more familiar case of dephasing noise. For a wide range of codes we analytically compute the effective logical channel that results when the error co...

O. Higgott, Daochen Wang, S. Brierley·May 21, 2018

The calculation of excited state energies of electronic structure Hamiltonians has many important applications, such as the calculation of optical spectra and reaction rates. While low-depth quantum algorithms, such as the variational quantum eigenva...

A. Shukla, M. Sisodia, A. Pathak·May 18, 2018

Quantum process tomography of each directly implementable quantum gate used in the IBM quantum processors is performed to compute gate error in order to check viability of complex quantum operations in the superconductivity-based quantum computers in...

M. Kovalsky, A. Hnilo, M'onica B. Aguero·May 18, 2018

Quantum systems are the ultimate touchstone for the production of random sequences of numbers. Spatially spread entangled systems allow the generation of identical random sequences in remote locations. The impossibility of observing a quantum system,...

M. Amy·May 17, 2018

We introduce a framework for the formal specification and verification of quantum circuits based on the Feynman path integral. Our formalism, built around exponential sums of polynomial functions, provides a structured and natural way of specifying q...

Andrei Galiautdinov·May 17, 2018

We propose to use the continuous version of the quantum Zeno effect to eliminate leakage to higher energy states in superconducting quantum computing architectures based on Josephson phase and flux qubits. We are particularly interested in the applic...

Yijie Dang, Nan Jiang, Hao Hu +2 more·May 16, 2018

Image classification is an important task in the field of machine learning and image processing. However, the usually used classification method --- the K Nearest-Neighbor algorithm has high complexity, because its two main processes: similarity comp...

Sahil Imtiyaz·May 16, 2018

Big Data is characterized by Volume, Velocity, Veracity and Complexity. The interaction between this huge data is complex with an associated free will having dynamic and non linear nature. We reduced big data based on its characteristics, conceptuall...

Xiao-tong Yu, Qi Zhang, Y. Ban +1 more·May 16, 2018

Rapid preparation, manipulation, and correction of spin states with high fidelity are requisite for quantum information processing and quantum computing. In this paper, we propose a fast and robust approach for controlling two spins with Heisenberg a...

I. Tzitrin·May 15, 2018

Classifying locally equivalent graph states, and stabilizer states more broadly, is a significant problem in the theories of quantum information and multipartite entanglement. A special focus is given to those graph states for which equivalence throu...

Panjin Kim, Daewan Han, K. Jeong·May 15, 2018

Performance of cryptanalytic quantum search algorithms is mainly inferred from query complexity which hides overhead induced by an implementation. To shed light on quantitative complexity analysis removing hidden factors, we provide a framework for e...

Mee Seong Im, Venkateswara Dasari·May 15, 2018

Quantum applications transmit and receive data through quantum and classical communication channels. Channel capacity, the distance and the photon path between transmitting and receiving parties and the speed of the computation links play an essentia...

M. Rossi, D. Mason, Junxin Chen +2 more·May 14, 2018

Controlling a quantum system by using observations of its dynamics is complicated by the backaction of the measurement process—that is, the unavoidable quantum disturbance caused by coupling the system to a measurement apparatus. An efficient measure...

A. Dalzell, A. Harrow, Dax Enshan Koh +1 more·May 14, 2018

Quantum computational supremacy arguments, which describe a way for a quantum computer to perform a task that cannot also be done by a classical computer, typically require some sort of computational assumption related to the limitations of classical...

Bartłomiej Gardas, M. Rams, J. Dziarmaga·May 14, 2018

We conduct experimental simulations of many body quantum systems using a \emph{hybrid} classical-quantum algorithm. In our setup, the wave function of the transverse field quantum Ising model is represented by a restricted Boltzmann machine. This neu...

S. Roy, J. Bae·May 14, 2018

The advantages of quantum information processing are in many cases obtained as consequences of quantum interactions, especially for computational tasks where two-qubit interactions are essential. In this work, we establish the framework of analyzing ...