Papers

Srijit Dutta, Debjyoti Bhattacharjee, A. Chattopadhyay·May 7, 2018

In this paper, we report efficient quantum circuits for integer multiplication using Toom-Cook algorithm. By analysing the recursive tree structure of the algorithm, we obtained a bound on the count of Toffoli gates and qubits. These bounds are furth...

D. Su, K. Sabapathy, C. Myers +3 more·May 7, 2018

Implementing quantum algorithms is essential for quantum computation. We study the implementation of three quantum algorithms by performing homodyne measurements on a two-dimensional temporal continuous-variable cluster state. We first review the gen...

A. Ivanov·May 6, 2018

We consider continuous structures which are obtained from finite dimensional Hilbert spaces over $\mathbb{C}$ by adding some unitary operators. Quantum automata and circuits are naturally interpretable in such structures. We consider appropriate algo...

G. Muraleedharan, A. Miyake, I. Deutsch·May 4, 2018

We study the sampling complexity of a probability distribution associated with an ensemble of identical noninteracting bosons undergoing a quantum random walk on a one-dimensional lattice. With uniform nearest-neighbor hopping we show that one can ef...

Shuo Sun, Hyochul Kim, Zhouchen Luo +2 more·May 4, 2018

A single-photon gate A long-standing goal in optics is to produce a solid-state alloptical transistor, in which the transmission of light can be controlled by a single photon that acts as a gate or switch. Sun et al. used a solid-state system compris...

J. Shainline, S. Buckley, A. McCaughan +4 more·May 4, 2018

Optical communication achieves high fanout and short delay advantageous for information integration in neural systems. Superconducting detectors enable signaling with single photons for maximal energy efficiency. We present designs of superconducting...

F. Zanasi·May 4, 2018

As first main contribution, this thesis characterises the PROP SVk of linear subspaces over a field k - an important domain of interpretation for circuit diagrams appearing in diverse research areas. We present by generators and equations the PROP IH...

J. Klos, F. Hassler, Pascal Cerfontaine +2 more·May 4, 2018

Quantum computation based on semiconductor electron-spin qubits requires high control of tunnel couplings between the quantum dots and the electron reservoirs. Potential disorder and the increasing complexity of the two-dimensional gate-defined quant...

Jianxin Chen, Fang Zhang, Cupjin Huang +2 more·May 3, 2018

We introduce a distributed classical simulation algorithm for general quantum circuits, and present numerical results for calculating the output probabilities of universal random circuits. We find that we can simulate more qubits to greater depth tha...

Sam Roberts, S. Bartlett·May 3, 2018

A self-correcting quantum memory can store and protect quantum information for a time that increases without bound with the system size and without the need for active error correction. We demonstrate that symmetry can lead to self-correction in 3D s...

Deshui Yu, R. Dumke·May 2, 2018

We propose a scheme of stabilizing the persistent-current Rabi oscillation based on the flux qubit-resonator-atom hybrid structure. The LC resonator weakly interacts with the flux qubit and maps the persistent-current Rabi oscillation onto the intrar...

Adam Kelly·May 2, 2018

Quantum computing is an emerging technology, promising a paradigm shift in computing, and allowing for speedups in many different problems. However, quantum devices are still in their early stages, most with only a small number qubits. This places a ...

T. Goodrich, Eric Horton, Blair D. Sullivan·May 2, 2018

We experimentally evaluate the practical state-of-the-art in graph bipartization (Odd Cycle Transversal), motivated by recent advances in near-term quantum computing hardware and the related embedding problems. We assemble a preprocessing suite of fa...

M. Kieferová, A. Scherer, D. Berry·May 2, 2018

We provide a general method for efficiently simulating time-dependent Hamiltonian dynamics on a circuit-model based quantum computer. Our approach is based on approximating the truncated Dyson series of the evolution operator, extending the earlier p...

H. Abudayyeh, B. Lubotzky, S. Majumder +2 more·May 1, 2018

Efficient, high rate photon sources with high single photon purity are essential ingredients for quantum technologies. Single photon sources based on solid state emitters such as quantum dots are very advantageous for integrated photonic circuits, bu...

J. P. Lee, B. Villa, A. Bennett +5 more·Apr 30, 2018

We propose a scheme to make use of recent advances in cavity QED-enhanced resonance fluorescence from quantum dots to generate a stream of entangled and indistinguishable photons. We then demonstrate that we can optically manipulate the state of a tr...

P. Rebentrost, Brajesh Gupt, T. Bromley·Apr 30, 2018

Financial derivatives are contracts that can have a complex payoff dependent upon underlying benchmark assets. In this work, we present a quantum algorithm for the Monte Carlo pricing of financial derivatives. We show how the relevant probability dis...

Vojtěch Havlíček, A. Córcoles, K. Temme +4 more·Apr 30, 2018

Machine learning and quantum computing are two technologies that each have the potential to alter how computation is performed to address previously untenable problems. Kernel methods for machine learning are ubiquitous in pattern recognition, with s...

Arit Kumar Bishwas, A. Mani, V. Palade·Apr 29, 2018

Clustering is a complex process in finding the relevant hidden patterns in unlabeled datasets, broadly known as unsupervised learning. Support vector clustering algorithm is a well-known clustering algorithm based on support vector machines and Gauss...

Felix Kleißler, A. Lazariev, Silvia Arroyo-Camejo·Apr 29, 2018

Geometric phases and holonomies are a promising resource for the realization of high-fidelity quantum operations in noisy devices, due to their intrinsic fault-tolerance against parametric noise. However, for a long time their practical use in quantu...