Papers

Roozbeh Bassirian, Sadra Boreiri, V. Karimipour·Jan 8, 2018

Quantum secret sharing is a method for sharing a secret quantum state among a number of individuals such that certain authorized subsets of participants can recover the secret shared state by collaboration and other subsets cannot. In this paper, we ...

Mahdi Boroujeni, S. Ehsani, M. Ghodsi +2 more·Jan 7, 2018

The edit distance between two strings is defined as the smallest number of insertions, deletions, and substitutions that need to be made to transform one of the strings to another one. Approximating edit distance in subquadratic time is "one of the b...

S. Danilin, A. Lebedev, Antti Vepsäläinen +4 more·Jan 7, 2018

Phase estimation algorithms are key protocols in quantum information processing. Besides applications in quantum computing, they can also be employed in metrology as they allow for fast extraction of information stored in the quantum state of a syste...

M. Ganahl, G. Vidal·Jan 7, 2018

By combining the continuous matrix product state (cMPS) representation for quantum fields in the continuum with standard optimization techniques for matrix product states (MPS) on the lattice, we obtain an approximation $|\Psi\rangle$, directly in th...

A. Darmawan, D. Poulin·Jan 5, 2018

A quantum error correcting protocol can be substantially improved by taking into account features of the physical noise process. We present an efficient decoder for the surface code which can account for general noise features, including coherences a...

I. Savran, M. Demirci, A. Yılmaz·Jan 4, 2018

Shor’s quantum algorithm is very important for cryptography, because it can factor large numbers much faster than classical algorithms. In this study, we implement a simulator for Shor’s quantum algorithm on graphic processor units (GPU) and compare ...

Mo Chen, Won Kyu Calvin Sun, K. Saha +2 more·Jan 4, 2018

Quantum memories are critical for solid-state quantum computing devices and a good quantum memory requires both long storage time and fast read/write operations. A promising system is the nitrogen-vacancy (NV) center in diamond, where the NV electron...

Pierre-Luc Dallaire-Demers, J. Romero, L. Veis +2 more·Jan 3, 2018

Quantum simulations are bound to be one of the main applications of near-term quantum computers. Quantum chemistry and condensed matter physics are expected to benefit from these technological developments. Several quantum simulation methods are know...

Noel H. Wan, S. Mouradian, D. Englund·Jan 3, 2018

Color centers in diamond are promising spin qubits for quantum computing and quantum networking. In photon-mediated entanglement distribution schemes, the efficiency of the optical interface ultimately determines the scalability of such systems. Nano...

J. Preskill·Jan 2, 2018

Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future. Quantum computers with 50-100 qubits may be able to perform tasks which surpass the capabilities of today's classical digital computers, but noise in quantum gat...

Ryan Larose·Jan 2, 2018

In this paper we describe, implement, and test the performance of distributed memory simulations of quantum circuits on the MSU Laconia Top500 supercomputer. Using OpenMP and MPI hybrid parallelization, we first use a distributed matrix-vector multip...

Marius Schondorf, F. Wilhelm·Jan 2, 2018

Robust high-fidelity parity measurment is an important operation in many applications of quantum computing. In this work we show how in a circuit-QED architecture, one can measure parity in a single shot at very high contrast by taking advantage of t...

Haik Manukian, F. Traversa, M. Ventra·Jan 1, 2018

Restricted Boltzmann machines (RBMs) and their extensions, often called "deep-belief networks", are powerful neural networks that have found applications in the fields of machine learning and artificial intelligence. The standard way to train these m...

Xiaoqian Zhang, Jian Weng, Weiqi Luo +1 more·Dec 30, 2017

After quantum computers come out, governments and rich companies will have the abilities to buy these useful quantum computers, meanwhile they are familiar with these technologies proficiently. If a client wants to perform quantum computing but she d...

Bikramaditya Das, Kamal Gurnani, B. K. Behera +1 more·Dec 29, 2017

Quantum search algorithm can be described as the rotation of state vectors in a Hilbert space. The state vectors uniformly rotate by iterative sequences until they hit the target position. To optimize the algorithm, it is necessary to have the precis...

M. Partanen, K. Tan, S. Masuda +10 more·Dec 29, 2017

Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a c...

R. Garc'ia-Patr'on, J. Renema, V. Shchesnovich·Dec 28, 2017

Photon losses are among the strongest imperfections affecting multi-photon interference. Despite their importance, little is known about their effect on boson sampling experiments. In this work we show that using classical computers, one can efficien...

G. B. Lesovik, I. Sadovskyy, M. Suslov +2 more·Dec 28, 2017

Uncovering the origin of the arrow of time remains a fundamental scientific challenge. Within the framework of statistical physics, this problem was inextricably associated with the Second Law of Thermodynamics, which declares that entropy growth pro...

M. Aldi, J. N. D. Beaudrap, Sevag Gharibian +1 more·Dec 27, 2017

Estimating ground state energies of local Hamiltonian models is a central problem in quantum physics. The question of whether a given local Hamiltonian is frustration-free, meaning the ground state is the simultaneous ground state of all local intera...

James R. Wootton·Dec 27, 2017

The Decodoku project seeks to let users get hands-on with cutting-edge quantum research through a set of simple puzzle games. The design of these games is explicitly based on the problem of decoding qudit variants of surface codes. This problem is pr...