Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Solving various NP-hard problems using exponentially fewer qubits on a quantum computer
Yagnik Chatterjee, E. Bourreau, Marko J. Ranvci'c·Jan 17, 2023
NP-hard problems are not believed to be exactly solvable through general polynomial time algorithms. Hybrid quantum-classical algorithms to address such combinatorial problems have been of great interest in the past few years. Such algorithms are heu...
Generalized Zurek's bound on the cost of an individual classical or quantum computation
Artemy Kolchinsky·Jan 17, 2023
We consider the minimal thermodynamic cost of an individual computation, where a single input x is mapped to a single output y. In prior work, Zurek proposed that this cost was given by K(x|y), the conditional Kolmogorov complexity of x given y (up t...
Dissipation and dephasing of interacting photons in transmon arrays
O. Busel, Sami Laine, Olli Mansikkamäki +1 more·Jan 17, 2023
Transmon arrays are one of the most promising platforms for quantum information science. Despite being often considered simply as qubits, transmons are inherently quantum mechanical multilevel systems. Being experimentally controllable with high fide...
Taking advantage of noise in quantum reservoir computing
L. Domingo, G. Carlo, F. Borondo·Jan 17, 2023
The biggest challenge that quantum computing and quantum machine learning are currently facing is the presence of noise in quantum devices. As a result, big efforts have been put into correcting or mitigating the induced errors. But, can these two fi...
Quantum error correction from complexity in Brownian SYK
V. Balasubramanian, Arjun Kar, Cathy Li +2 more·Jan 17, 2023
We study the robustness of quantum error correction in a one-parameter ensemble of codes generated by the Brownian SYK model, where the parameter quantifies the encoding complexity. The robustness of error correction by a quantum code is upper bounde...
Two-step relaxation in local many-body Floquet systems
M. Znidaric·Jan 16, 2023
We want to understand how relaxation process from an initial non-generic state proceeds towards a long-time typical state reached under unitary quantum evolution. One would expect that after some initial correlation time relaxation will be a simple e...
Hybrid quantum-classical convolutional neural networks to improve molecular protein binding affinity predictions
L. Domingo, M. Djukic, C. Johnson +1 more·Jan 16, 2023
One of the main challenges in drug discovery is to find molecules that bind specifically and strongly to their target protein while having minimal binding to other proteins. By predicting binding affinity, it is possible to identify the most promisin...
Stabilizer formalism in linear optics and application to Bell-state discrimination
Tomohiro Yamazaki, R. Ikuta, Takashi Yamamoto·Jan 16, 2023
We propose a framework to analyze linear optical circuits based on an analogy with stabilizer formalism in quantum circuits, which provides efficiently computable formulas related to state discriminations. Hence, we analyze a Bell-state discriminatio...
Quantum simulations in effective model spaces: Hamiltonian-learning variational quantum eigensolver using digital quantum computers and application to the Lipkin-Meshkov-Glick model
C. Robin, M. Savage·Jan 14, 2023
The utility of effective model spaces in quantum simulations of non-relativistic quantum many-body systems is explored in the context of the Lipkin-Meshkov-Glick model of interacting fermions. We introduce an iterative hybrid-classical-quantum algori...
Mixed-state topological order and the errorfield double formulation of decoherence-induced transitions
Yimu Bao, Ruihua Fan, Ashvin Vishwanath +1 more·Jan 13, 2023
We develop an effective field theory characterizing the impact of decoherence on states with abelian topological order and on their capacity to protect quantum information. The decoherence appears as a temporal defect in the double topological quantu...
Modeling Singlet Fission on a Quantum Computer
Daniel Claudino, Bo Peng, K. Kowalski +1 more·Jan 13, 2023
We demonstrate a practical application of quantum computing by using it to investigate the linear H4 molecule as a simple model for singlet fission. We use the Peeters-Devreese-Soldatov energy functional to calculate the necessary energetics based on...
Large-scale sparse wave function circuit simulator for applications with the variational quantum eigensolver.
J. W. Mullinax, N. Tubman·Jan 13, 2023
The standard paradigm for state preparation on quantum computers for the simulation of physical systems in the near term has been widely explored with different algorithmic methods. One such approach is the optimization of parameterized circuits, but...
TeD-Q: a tensor network enhanced distributed hybrid quantum machine learning framework
Yaocheng Chen, C. Kuo, Yuxuan Du +2 more·Jan 13, 2023
TeD-Q is an open-source software framework for quantum machine learning, variational quantum algorithm (VQA), and simulation of quantum computing. It seamlessly integrates classical machine learning libraries with quantum simulators, giving users the...
Hypergraphic Partitioning of Quantum Circuits for Distributed Quantum Computing
Waldemir Cambiucci, Regina Silveira, W. Ruggiero·Jan 13, 2023
When dealing with NISQ computers (Noise Intermediate Scale Quantum), it is widely accepted that distributing circuits among processing agents is an effective way to increase scalability with small machines. This approach can improve overall computati...
Beyond MP2 initialization for unitary coupled cluster quantum circuits
M. Hirsbrunner, Diana Chamaki, J. W. Mullinax +1 more·Jan 13, 2023
The unitary coupled cluster (UCC) ansatz is a promising tool for achieving high-precision results using the variational quantum eigensolver (VQE) algorithm in the NISQ era. However, results on quantum hardware are thus far very limited and simulation...
Improving the speed of variational quantum algorithms for quantum error correction
Fabio Zoratti, Giacomo De Palma, B. Kiani +4 more·Jan 12, 2023
We consider the problem of devising a suitable Quantum Error Correction (QEC) procedures for a generic quantum noise acting on a quantum circuit. In general, there is no analytic universal procedure to obtain the encoding and correction unitary gates...
Heuristic for Diverse Kemeny Rank Aggregation based on Quantum Annealing
Sven Fiergolla, Kevin Goergen, Patrick Neises +1 more·Jan 12, 2023
The Kemeny Rank Aggregation ( KRA ) problem is a well-studied problem in the field of Social Choice with a variety of applications in many different areas like databases and search engines. Intuitively, given a set of votes over a set of candidates, th...
Quantum Algorithm for Finding Minimum Values in a Quantum Random Access Memory
Antonella Albino, Lucas Q. Galvão, Ethan Hansen +2 more·Jan 12, 2023
Finding the minimum value in a large unstructured database is a common and fundamental task in computer science with broad applications across science and industry. However, the optimal classical deterministic algorithm can find the minimum value wit...
Chemical Profiles of the Oxides on Tantalum in State of the Art Superconducting Circuits
Russell A McLellan, A. Dutta, Chenyu Zhou +23 more·Jan 11, 2023
Over the past decades, superconducting qubits have emerged as one of the leading hardware platforms for realizing a quantum processor. Consequently, researchers have made significant effort to understand the loss channels that limit the coherence tim...
Trapped Ion Quantum Computing using Optical Tweezers and the Magnus Effect
M. Mazzanti, R. Gerritsma, R. Spreeuw +1 more·Jan 11, 2023
We consider the implementation of quantum logic gates in trapped ions using tightly focused optical tweezers. Strong polarization gradients near the tweezer focus lead to qubit-state dependent forces on the ion. We show that these may be used to impl...