Papers
Live trends in quantum computing research, updated daily from arXiv.
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Deterministic Generation of Multipartite Entanglement via Causal Activation in the Quantum Internet
Seid Koudia, A. Cacciapuoti, M. Caleffi·Dec 1, 2021
Entanglement represents “the” key resource for several applications of quantum information processing, ranging from quantum communications to distributed quantum computing. Despite its fundamental importance, deterministic generation of maximally ent...
A Quantum Approach Towards the Adaptive Prediction of Cloud Workloads
Ashutosh Kumar Singh, D. Saxena, J. Kumar +1 more·Dec 1, 2021
This work presents a novel Evolutionary Quantum Neural Network (EQNN) based workload prediction model for Cloud datacenter. It exploits the computational efficiency of quantum computing by encoding workload information into qubits and propagating thi...
An analytic study of the independent coherent errors in the surface code
Yuan-Yuan Zhao, Dong E. Liu·Dec 1, 2021
The realistic coherent errors could induce very different behaviors compared with their stochastic counterparts in the quantum error correction (QEC) and fault tolerant quantum computation. Their impacts are believed to be very subtle, more detriment...
Revisiting dequantization and quantum advantage in learning tasks
Jordan S. Cotler, Hsin-Yuan Huang, J. McClean·Dec 1, 2021
It has been shown that the apparent advantage of some quantum machine learning algorithms may be efficiently replicated using classical algorithms with suitable data access -- a process known as dequantization. Existing works on dequantization compar...
Quantum-Resistant Cryptography
J. Mattsson, B. Smeets, Erik Thormarker·Dec 1, 2021
Quantum-resistant cryptography is cryptography that aims to deliver cryptographic functions and protocols that remain secure even if large-scale fault-tolerant quantum computers are built. NIST will soon announce the first selected public-key cryptog...
From Quantum Codes to Gravity: A Journey of Gravitizing Quantum Mechanics
ChunJun Cao·Dec 1, 2021
In this note, I review a recent approach to quantum gravity that “gravitizes” quantum mechanics by emerging geometry and gravity from complex quantum states. Drawing further insights from tensor network toy models in AdS/CFT, I propose that approxima...
Ground State, Magnetization Process and Bipartite Quantum Entanglement of a Spin-1/2 Ising–Heisenberg Model on Planar Lattices of Interconnected Trigonal Bipyramids
L. Gálisová, Michał Kaczor·Dec 1, 2021
The ground state, magnetization scenario and the local bipartite quantum entanglement of a mixed spin-1/2 Ising–Heisenberg model in a magnetic field on planar lattices formed by identical corner-sharing bipyramidal plaquettes is examined by combining...
Quantum Compiling
Marco Maronese, Lorenzo Moro, Lorenzo Rocutto +1 more·Dec 1, 2021
Quantum compiling fills the gap between the computing layer of high-level quantum algorithms and the layer of physical qubits with their specific properties and constraints. Quantum compiling is a hybrid between the general-purpose compilers of compu...
Convex Non-negative Matrix Factorization Through Quantum Annealing
A. Zaiou, Basarab Matei, Y. Bennani +1 more·Dec 1, 2021
In this paper we provide the quantum version of the Convex Non-negative Matrix Factorization algorithm (Convex-NMF) by using the D-wave quantum annealer. More precisely, we use D-wave 2000Q to find the low rank approximation of a fixed real-valued ma...
A Quantum Parallel Markov Chain Monte Carlo
A. Holbrook·Dec 1, 2021
Abstract We propose a novel hybrid quantum computing strategy for parallel MCMC algorithms that generate multiple proposals at each step. This strategy makes the rate-limiting step within parallel MCMC amenable to quantum parallelization by using the...
Biology and medicine in the landscape of quantum advantages
Benjamin A. Cordier, Nicolas P. D. Sawaya, G. Guerreschi +1 more·Dec 1, 2021
Quantum computing holds substantial potential for applications in biology and medicine, spanning from the simulation of biomolecules to machine learning methods for subtyping cancers on the basis of clinical features. This potential is encapsulated b...
Engineering strong beamsplitter interaction between bosonic modes via quantum optimal control theory
Daniel Basilewitsch, Yaxing Zhang, S. Girvin +1 more·Nov 30, 2021
In continuous-variable quantum computing with qubits encoded in the infinite-dimensional Hilbert space of bosonic modes, it is a difficult task to realize strong and on-demand interactions between the qubits. One option is to engineer a beamsplitter int...
Nonperturbative Analytical Diagonalization of Hamiltonians with Application to Circuit QED
Boxi Li, T. Calarco, F. Motzoi·Nov 30, 2021
Deriving effective Hamiltonian models plays an essential role in quantum theory, with particular emphasis in recent years on control and engineering problems. In this work, we present two symbolic methods for computing effective Hamiltonian models: the...
Limiting the Search Space in Optimal Quantum Circuit Mapping
Lukas Burgholzer, Sarah Schneider, R. Wille·Nov 30, 2021
Executing quantum circuits on currently available quantum computers requires compiling them to a representation that conforms to all restrictions imposed by the targeted architecture. Due to the limited connectivity of the devices' physical qubits, a...
A hybrid classical-quantum algorithm for solution of nonlinear ordinary differential equations
Alok Shukla, P. Vedula·Nov 30, 2021
A hybrid classical-quantum approach for the solution of nonlinear ordinary di ff erential equations using Walsh-Hadamard basis functions is proposed. Central to this hybrid approach is the computation of the Walsh-Hadamard transform of arbitrary vecto...
Quantum Algorithm for Stochastic Optimal Stopping Problems with Applications in Finance
J. F. Doriguello, Alessandro Luongo, Jing Bao +2 more·Nov 30, 2021
The famous least squares Monte Carlo (LSM) algorithm combines linear least square regression with Monte Carlo simulation to approximately solve problems in stochastic optimal stopping theory. In this work, we propose a quantum LSM based on quantum ac...
Quantifying fermionic nonlinearity of quantum circuits
Shigeo Hakkaku, Yuichiro Tashima, K. Mitarai +2 more·Nov 29, 2021
Variational quantum algorithms (VQAs) have been proposed as one of the most promising approaches to demonstrate quantum advantage on noisy intermediate-scale quantum (NISQ) devices. However, it has been unclear whether VQAs can maintain quantum advan...
Weyl anomalies of four dimensional conformal boundaries and defects
A. Chalabi, C. Herzog, A. O’Bannon +2 more·Nov 29, 2021
Motivated by questions about quantum information and classification of quantum field theories, we consider Conformal Field Theories (CFTs) in spacetime dimension d ≥ 5 with a conformally-invariant spatial boundary (BCFTs) or 4-dimensional conformal d...
Random Quantum Circuits Transform Local Noise into Global White Noise
A. Dalzell, Nicholas Hunter-Jones, F. Brandão·Nov 29, 2021
We study the distribution over measurement outcomes of noisy random quantum circuits in the regime of low fidelity, which corresponds to the setting where the computation experiences at least one gate-level error with probability close to one. We mod...
Quantum search degeneration under amplitude noise in queries to the oracle
A. Rastegin, A. M. Shemet·Nov 29, 2021
We examine how amplitude noise in queries to the oracle degrades a performance of quantum search algorithm. The Grover search and similar techniques are widely used in various quantum algorithms, including cases where rival parties are fighting over ...