Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hardware Implementation of a Polar Code-based Public Key Cryptosystem
Reza Hooshmand, Farhad Naserizadeh, Jalil Mazloum·Dec 27, 2022
In recent years, there have been many studies on quantum computing and the construction of quantum computers which are capable of breaking conventional number theory-based public key cryptosystems. Therefore, in the not-too-distant future, we need th...
Digitized Counterdiabatic Quantum Algorithm for Protein Folding
P. Chandarana, N. N. Hegade, I. Montalban +2 more·Dec 27, 2022
We propose a hybrid classical-quantum digitized-counterdiabatic algorithm to tackle the protein folding problem on a tetrahedral lattice. Digitized-counterdiabatic quantum computing is a paradigm developed to compress quantum algorithms via the digit...
On-chip polarization-encoded single-qubit gates with twisted waveguides
Fyodor Morozko, A. Novitsky, A. Mikhalychev +1 more·Dec 27, 2022
Integrated photonics is a remarkable platform for scalable classical and quantum light-based information processing. However, polarization manipulation on a chip despite of its fundamental significance in information processing remains elusive. Polar...
Programmable frequency-bin quantum states in a nano-engineered silicon device
M. Clementi, F. Sabattoli, M. Borghi +12 more·Dec 26, 2022
Photonic qubits should be controllable on-chip and noise-tolerant when transmitted over optical networks for practical applications. Furthermore, qubit sources should be programmable and have high brightness to be useful for quantum algorithms and gr...
PANSATZ: pulse-based ansatz for variational quantum algorithms
Dekel Meirom, S. Frankel·Dec 25, 2022
Quantum computers promise a great computational advantage over classical computers, which might help solve various computational challenges such as the simulation of complicated quantum systems, finding optimum in large optimization problems, and sol...
Quantum Federated Learning for Distributed Quantum Networks
Kai Yu, Xin Zhang, Zi Ye +2 more·Dec 25, 2022
Federated learning is a framework that can learn from distributed networks. It attempts to build a global model based on virtual fusion data without sharing the actual data. Nevertheless, the traditional federated learning process encounters two main...
Synthesis of Hidden Subgroup Quantum Algorithms and Quantum Chemical Dynamics.
S. Iyengar, Anup Kumar, Debadrita Saha +1 more·Dec 25, 2022
We describe a general formalism for quantum dynamics and show how this formalism subsumes several quantum algorithms, including the Deutsch, Deutsch-Jozsa, Bernstein-Vazirani, Simon, and Shor algorithms as well as the conventional approach to quantum...
Introducing a Research Program for Quantum Humanities: Theoretical Implications
A. Botticher, Z. Seskir, J. Ruhland·Dec 25, 2022
Quantum computing is a new form of computing that is based on the principles of quantum mechanics. It has the potential to revolutionize many fields, including the humanities and social sciences. The idea behind quantum humanities is to explore the p...
Simulation of Networked Quantum Computing on Encrypted Data
Ieva Čepaitė·Dec 25, 2022
Due to the limited availability of quantum computing power in the near future, cryptographic security techniques must be developed for secure remote use of current and future quantum computing hardware. Prominent among these is Universal Blind Quantu...
Near-optimal quantum circuit construction via Cartan decomposition
M. Mansky, Santiago Londoño Castillo, Victor Ramos Puigvert +1 more·Dec 25, 2022
We show the applicability of the Cartan decomposition of Lie algebras to quantum circuits. This approach can be used to synthesize circuits that can efficiently implement any desired unitary operation. Our method finds explicit quantum circuit repres...
Entanglement-efficient bipartite-distributed quantum computing
Jun-Yi Wu, Kosuke Matsui, Tim Forrer +5 more·Dec 24, 2022
In noisy intermediate-scale quantum computing, the limited scalability of a single quantum processing unit (QPU) can be extended through distributed quantum computing (DQC), in which one can implement global operations over two QPUs by entanglement-a...
Factoring integers with sublinear resources on a superconducting quantum processor
Bao Yan, Z. Tan, Shijie Wei +21 more·Dec 23, 2022
Shor's algorithm has seriously challenged information security based on public key cryptosystems. However, to break the widely used RSA-2048 scheme, one needs millions of physical qubits, which is far beyond current technical capabilities. Here, we r...
Clock synchronization with pulsed single photon sources
Christopher Spiess, F. Steinlechner·Dec 23, 2022
Photonic quantum technology requires precise, time-resolved identification of photodetection events. In distributed quantum networks with spatially separated and drifting time references, achieving high precision is particularly challenging. Here we ...
Generalized Toffoli Gate Decomposition Using Ququints: Towards Realizing Grover’s Algorithm with Qudits
Anstasiia S Nikolaeva, E. Kiktenko, A. Fedorov·Dec 23, 2022
Qubits, which are the quantum counterparts of classical bits, are used as basic information units for quantum information processing, whereas underlying physical information carriers, e.g., (artificial) atoms or ions, admit encoding of more complex m...
Extension of the Trotterized Unitary Coupled Cluster to Triple Excitations.
M. Haidar, M. Rančić, Y. Maday +1 more·Dec 23, 2022
The Trotterized Unitary Coupled Cluster Single and Double (UCCSD) ansatz has recently attracted interest due to its use in Variation Quantum Eigensolver (VQE) molecular simulations on quantum computers. However, when the size of molecules increases, ...
A compact and versatile cryogenic probe station for quantum device testing.
Mathieu de Kruijf, S. Geyer, T. Berger +4 more·Dec 23, 2022
Fast feedback from cryogenic electrical characterization measurements is key for the development of scalable quantum computing technology. At room temperature, high-throughput device testing is accomplished with a probe-based solution, where electric...
Depth analysis of variational quantum algorithms for the heat equation
N. Guseynov, A. Zhukov, W. Pogosov +1 more·Dec 23, 2022
Variational quantum algorithms are a promising tool for solving partial differential equations. The standard approach for its numerical solution are finite difference schemes, which can be reduced to the linear algebra problem. We consider three appr...
Optimizing one-axis twists for variational Bayesian quantum metrology
Tyler G. Thurtell, A. Miyake·Dec 23, 2022
Quantum metrology and sensing seek advantages in estimating an unknown parameter of some quantum state or channel, using entanglement such as spin squeezing produced by one-axis twists or other quantum resources. In particular, qubit phase estimation...
Separability and entanglement of resonating valence-bond states
Gilles Parez, Clément Berthiere, William Witczak-Krempa·Dec 22, 2022
We investigate separability and entanglement of Rokhsar-Kivelson (RK) states and resonating valence-bond (RVB) states. These states play a prominent role in condensed matter physics, as they can describe quantum spin liquids and quantum critical stat...
An unsupervised deep learning algorithm for single-site reconstruction in quantum gas microscopes
Alexander Impertro, Julian F. Wienand, Sophie Häfele +6 more·Dec 22, 2022
In quantum gas microscopy experiments, reconstructing the site-resolved lattice occupation with high fidelity is essential for the accurate extraction of physical observables. For short interatomic separations and limited signal-to-noise ratio, this ...