Papers
Live trends in quantum computing research, updated daily from arXiv.
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12,909 papers in 12 months (-5% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Automatic Generation of an Efficient Less-Than Oracle for Quantum Amplitude Amplification
Javier Sanchez-Rivero, Daniel Talav'an, J. García-Alonso +2 more·Mar 13, 2023
Grover's algorithm is a well-known contribution to quantum computing. It searches one value within an unordered sequence faster than any classical algorithm. A fundamental part of this algorithm is the so-called oracle, a quantum circuit that marks t...
Photonic quantum computing with probabilistic single photon sources but without coherent switches
T. Rudolph·Mar 6, 2023
We present photonic quantum computing architectures that can deal with both probabilistic (heralded) generation of single photons and probabilistic gates without making use of coherent switching. The only required dynamical element is the controllabl...
Deterministic generation of shaped single microwave photons using a parametrically driven coupler
Jiaying Yang, A. Eriksson, M. Aamir +5 more·Mar 6, 2023
A distributed quantum computing system requires a quantum communication channel between spatially separated processing units. In superconducting circuits, such a channel can be realized by using propagating microwave photons to encode and transfer qu...
Real-time decoding for fault-tolerant quantum computing: progress, challenges and outlook
F. Battistel, C. Chamberland, Kauser Johar +5 more·Feb 28, 2023
Quantum computing is poised to solve practically useful problems which are computationally intractable for classical supercomputers. However, the current generation of quantum computers are limited by errors that may only partially be mitigated by de...
Robust suppression of noise propagation in GKP error-correction
C. Siegele, P. Campagne-Ibarcq·Feb 23, 2023
Straightforward logical operations contrasting with complex state preparation are the hallmarks of the bosonic encoding proposed by Gottesman, Kitaev and Preskill (GKP). The recently reported generation and error-correction of GKP qubits in trapped i...
Using Cryogenic CMOS Control Electronics to Enable a Two-Qubit Cross-Resonance Gate
D. Underwood, J. Glick, K. Inoue +18 more·Feb 22, 2023
Qubit control electronics composed of CMOS circuits are of critical interest for next generation quantum computing systems. A CMOS-based application specific integrated circuit (ASIC) fabricated in 14nm FinFET technology was used to generate and sequ...
Quantum Gate Generation in Two-Level Open Quantum Systems by Coherent and Incoherent Photons Found with Gradient Search
V. Petruhanov, A. Pechen·Feb 18, 2023
In this work, we consider an environment formed by incoherent photons as a resource for controlling open quantum systems via an incoherent control. We exploit a coherent control in the Hamiltonian and an incoherent control in the dissipator which ind...
Shortcuts to adiabaticity in superconducting circuits for fast multi-partite state generation
F. C'ardenas-L'opez, J. C. Retamal, Xi Chen·Feb 15, 2023
Fast generation of multi-partite state is highly desirable in quantum information processing. By building on shortcut to adiabaticity, the authors accelerate the generation of multi-partite entangled states via reverse engineering, opening a route to...
Generation of genuine all-way entanglement in defect-nuclear spin systems through dynamical decoupling sequences
E. Takou, Edwin Barnes, S. Economou·Feb 11, 2023
Multipartite entangled states are an essential resource for sensing, quantum error correction, and cryptography. Color centers in solids are one of the leading platforms for quantum networking due to the availability of a nuclear spin memory that can...
Resilient superconducting-element design with genetic algorithms
F. C'ardenas-L'opez, J. C. Retamal, Xi Chen +2 more·Feb 3, 2023
We present superconducting quantum circuits that exhibit atomic energy spectra and selection rules in ladder and lambda three-level configurations designed using genetic algorithms. These heuristic optimization techniques are employed to adapt the to...
Scalable Quantum Memory Nodes using nuclear spins in Silicon Carbide
Shravan Kumar Parthasarathy, B. Kallinger, F. Kaiser +4 more·Feb 2, 2023
The ultimate motivation of my project is to address the possibility of building a quantum analogue of Internet of Things in order to improve the standards of quantum information processing. A distributed quantum computing network which is capable of ...
Gaussian conversion protocol for heralded generation of generalized Gottesman-Kitaev-Preskill states
Yu Zheng, A. Ferraro, A. F. Kockum +1 more·Jan 24, 2023
In the field of fault-tolerant quantum computing, continuous-variable systems can be utilized to protect quantum information from noise through the use of bosonic codes. These codes map qubit-type quantum information onto the larger bosonic Hilbert s...
Radiation-induced secondary emissions in solid-state devices as a possible contribution to quasiparticle poisoning of superconducting circuits
F. Ponce, J. Orrell, Zheming Wang·Jan 19, 2023
This report estimates the potential for secondary emission processes induced by ionizing radiation to result in the generation of quasiparticles in superconducting circuits. These estimates are based on evaluation of data collected from a small super...
Using the Julia framework to teach quantum entanglement
Shlomo Kashani, David Zaret·Jan 7, 2023
Entanglement, a phenomenon that has puzzled scientists since its discovery, has been extensively studied by many researchers through both theoretical and experimental aspect of both quantum information processing (QIP) and quantum mechanics (QM). But...
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...
Graphix: optimizing and simulating measurement-based quantum computation on local-Clifford decorated graph
S. Sunami, Masato Fukushima·Dec 22, 2022
We introduce an open-source software library Graphix , which optimizes and simu-lates measurement-based quantum computation (MBQC). By combining the measurement calculus with an efficient graph state simulator, Graphix allows the classical preprocessin...
Ultrafast Entanglement Dynamics in Monitored Quantum Circuits
Shengqi Sang, Zhi Li, T. Hsieh +1 more·Dec 20, 2022
Projective measurement, a basic operation in quantum mechanics, can induce seemingly nonlocal effects. In this work, we analyze such effects in many-body systems by studying the non-equilibrium dynamics of weakly monitored quantum circuits, focusing ...
Architectures for Multinode Superconducting Quantum Computers
James Ang, G. Carini, Yanzhu Chen +30 more·Dec 12, 2022
Many proposals to scale quantum technology rely on modular or distributed designs where individual quantum processors, called nodes, are linked together to form one large multinode quantum computer (MNQC). One scalable method to construct an MNQC is ...
Gaussian breeding for encoding a qubit in propagating light
Kan Takase, Kosuke Fukui, Akito Kawasaki +5 more·Dec 11, 2022
Practical quantum computing requires robust encoding of logical qubits in physical systems to protect fragile quantum information. Currently, the lack of scalability limits the logical encoding in most physical systems, and thus the high scalability ...
Verifying Quantum Advantage Experiments with Multiple Amplitude Tensor Network Contraction.
Yong Liu, Yaojian Chen, Chu Guo +11 more·Dec 9, 2022
The quantum supremacy experiment, such as Google Sycamore [F. Arute et al., Nature (London) 574, 505 (2019).NATUAS0028-083610.1038/s41586-019-1666-5], poses a great challenge for classical verification due to the exponentially increasing compute cost...