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First full simulation of 50-qubit universal quantum computer achieved - Phys.org
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π Today's Data Collection
Highlights: 3 top items selected
News items: 10 articles gathered
Technology papers: 10 papers fetched
Company papers: 8 papers from major players
Highlighted papers: 5 papers collected
Total sources: 6 data feeds processed
π Highlights
βπ° News Items
βGrowing need for 'quantum-proof encryption standards': GFTN - CNBC
CNBC β’ Wed, 12 Nov 2025
Quantum Computing Stocks: Rigetti Earnings Beat, Revenue Light - Investor's Business Daily
Investor's Business Daily β’ Tue, 11 Nov 2025
First full simulation of 50-qubit universal quantum computer achieved - Phys.org
Phys.org β’ Tue, 11 Nov 2025
Rigetti Earnings Revealed a Smaller Than Expected Loss. Why the Quantum Stock Is Dropping Anyway. - Barron's
Barron's β’ Tue, 11 Nov 2025
POET Technologies and Quantum Computing Inc. to Co-Develop 3.2 Tbps Optical Engines for CPO and Next-Gen AI Connectivity - PR Newswire
PR Newswire β’ Tue, 11 Nov 2025
Breaking Quantum Computing Stock News That IonQ, Rigetti Computing, and D-Wave Investors Can't Afford to Miss - The Motley Fool
The Motley Fool β’ Tue, 11 Nov 2025
Quantum computing upstart lands major Pentagon nod - Yahoo Finance
Yahoo Finance β’ Mon, 10 Nov 2025
SkyWater Technology, now one of biggest U.S. chip foundries, switches growth focus to new tech - Star Tribune
Star Tribune β’ Mon, 10 Nov 2025
Where Will Rigetti Computing Be in 1 Year? - The Motley Fool
The Motley Fool β’ Mon, 10 Nov 2025
Phase One Construction Begins on Chicago Quantum Computing Facility - The Quantum Insider
The Quantum Insider β’ Mon, 10 Nov 2025
π Technology Papers
βQuantum Computers, Quantum Computing and Quantum Thermodynamics
Fabrizio Cleri β’ Published: 2024-04-15
Quantum thermodynamics aims at extending standard thermodynamics and non-equilibrium statistical physics to systems with sizes well below the thermodynamic limit. A rapidly evolving research field, which promises to change our understanding of the foundations of physics, while enabling the discovery of novel thermodynamic techniques and applications at the nanoscale. Thermal management has turned ...
Computational Chemistry on Quantum Computers
Jerimiah Wright β’ Published: 2019-09-24
The purpose of this experiment was to use the known analytical techniques to study the creation, simulation, and measurements of molecular Hamiltonians. The techniques used consisted of the Linear Combination of Atomic Orbitals (LCAO), the Linear Combination of Unitaries (LCU), and the Phase Estimation Algorithm (PEA). The molecules studied were $H_2$ with and without spin, as well as $He_2$ witho...
The unity between quantum field computation, real computation, and quantum computation
A. C. Manoharan β’ Published: 2001-09-04
It is indicated that principal models of computation are indeed significantly related. The quantum field computation model contains the quantum computation model of Feynman. (The term "quantum field computer" was used by Freedman.) Quantum field computation (as enhanced by Wightman's model of quantum field theory) involves computation over the continuum which is remarkably related to the real comp...
Quantum Computing
Andrew Steane β’ Published: 1997-08-12
The subject of quantum computing brings together ideas from classical information theory, computer science, and quantum physics. This review aims to summarise not just quantum computing, but the whole subject of quantum information theory. It turns out that information theory and quantum mechanics fit together very well. In order to explain their relationship, the review begins with an introductio...
Quantum Computation
Dorit Aharonov β’ Published: 1998-12-15
In the last few years, theoretical study of quantum systems serving as computational devices has achieved tremendous progress. We now have strong theoretical evidence that quantum computers, if built, might be used as a dramatically powerful computational tool. This review is about to tell the story of theoretical quantum computation. I left out the developing topic of experimental realizations of...
Quantum computing
J. Eisert, M. M. Wolf β’ Published: 2004-01-05
This article gives an elementary introduction to quantum computing. It is a draft for a book chapter of the "Handbook of Nature-Inspired and Innovative Computing", Eds. A. Zomaya, G.J. Milburn, J. Dongarra, D. Bader, R. Brent, M. Eshaghian-Wilner, F. Seredynski (Springer, Berlin Heidelberg New York, 2006).
Quantum Computing
Valerio Scarani β’ Published: 1998-04-20
The main features of quantum computing are described in the framework of spin resonance methods. Stress is put on the fact that quantum computing is in itself nothing but a re-interpretation (fruitful indeed) of well-known concepts. The role of the two basic operations, one-spin rotation and controlled-NOT gates, is analyzed, and some exercises are proposed.
Quantum Computing
Thaddeus D. Ladd, Fedor Jelezko, Raymond Laflamme, Yasunobu Nakamura, Christopher Monroe, Jeremy L. O'Brien β’ Published: 2010-09-12
Quantum mechanics---the theory describing the fundamental workings of nature---is famously counterintuitive: it predicts that a particle can be in two places at the same time, and that two remote particles can be inextricably and instantaneously linked. These predictions have been the topic of intense metaphysical debate ever since the theory's inception early last century. However, supreme predic...
Quantum Computation
Bhupesh Bishnoi β’ Published: 2020-06-04
In this research notebook in the four-part, quantum computation and applications, quantum computation and algorithms, quantum communication protocol, and universal quantum computation for quantum engineers, researchers, and scientists, we will discuss and summarized the core principles and practical application areas of quantum computation. We first discuss the historical prospect from which quant...
Quantum Computers
Archil Avaliani β’ Published: 2004-05-03
This research paper gives an overview of quantum computers - description of their operation, differences between quantum and silicon computers, major construction problems of a quantum computer and many other basic aspects. No special scientific knowledge is necessary for the reader.
π’ Company Papers
βInteractions of Ions and Ultracold Neutral Atom Ensembles in Composite Optical Dipole Traps: Developments and Perspectives
Leon Karpa β’ Published: 2021-06-11
Ion-atom interactions are a comparatively recent field of research that has drawn considerable attention due to its applications in areas including quantum chemistry and quantum simulations. In first experiments, atomic ions and neutral atoms have been successfully overlapped by devising hybrid apparatuses combining established trapping methods, Paul traps for ions and optical or magneto-optical t...
Democratizing Spin Qubits
Charles Tahan β’ Published: 2020-01-22
I've been building Powerpoint-based quantum computers with electron spins in silicon for 20 years. Unfortunately, real-life-based quantum dot quantum computers are harder to implement. Materials, fabrication, and control challenges still impede progress. The way to accelerate discovery is to make and measure more qubits. Here I discuss separating the qubit realization and testing circuitry from th...
About the dynamics and thermodynamics of trapped ions
Caroline Champenois β’ Published: 2009-02-16
This tutorial introduces the dynamics of charged particles in a radiofrequency trap in a very general manner to point out the differences between the dynamics in a quadrupole and in a multipole trap. When dense samples are trapped, the dynamics is modified by the Coulomb repulsion between ions. To take into account this repulsion, we propose to use a method, originally developed for particles in P...
Neutral Atoms in Optical Tweezers as Messenger Qubits for Scaling up a Trapped Ion Quantum Computer
Svetlana Kotochigova, Subhadeep Gupta, Boris Blinov β’ Published: 2025-01-08
We propose to combine neutral atom and trapped ion qubits in one scalable modular architecture that uses shuttling of individual neutral atoms in optical tweezers to realize atomic interconnects between trapped ion quantum registers. These interconnects are deterministic, and thus may be performed on-demand. The proposed protocol is as follows: a tweezer-trapped neutral atom qubit is brought close...
Quantum Simulations with Cold Trapped Ions
Michael Johanning, Andres Varon, Christof Wunderlich β’ Published: 2009-05-01
The control of internal and motional quantum degrees of freedom of laser cooled trapped ions has been subject to intense theoretical and experimental research for about three decades. In the realm of quantum information science the ability to deterministically prepare and measure quantum states of trapped ions is unprecedented. This expertise may be employed to investigate physical models conceive...
Experimental QND measurements of complementarity on two-qubit states with IonQ and IBM Q quantum computers
Nicolas Schwaller, Valeria Vento, Christophe Galland β’ Published: 2021-05-13
We report the experimental nondemolition measurement of coherence, predictability and concurrence on a system of two qubits. The quantum circuits proposed by De Melo et al. are implemented on IBM Q (superconducting circuit) and IonQ (trapped ion) quantum computers. Three criteria are used to compare the performance of the different machines on this task: measurement accuracy, nondemolition of the ...
Superconducting Spin Qubits
C. Padurariu, Yu. V. Nazarov β’ Published: 2009-12-19
We propose and theoretically investigate spin superconducting qubits. Spin superconducting qubit consists of a single spin confined in a Josephson junction. We show that owing to spin-orbit interaction, superconducting difference across the junction can polarize this spin. We demonstrate that this enables single qubit operations and more complicated quantum gates, where spins of different qubits i...
Enhancing quantum utility: simulating large-scale quantum spin chains on superconducting quantum computers
Talal Ahmed Chowdhury, Kwangmin Yu, Mahmud Ashraf Shamim, M. L. Kabir, Raza Sabbir Sufian β’ Published: 2023-12-19
We present the quantum simulation of the frustrated quantum spin-$\frac{1}{2}$ antiferromagnetic Heisenberg spin chain with competing nearest-neighbor $(J_1)$ and next-nearest-neighbor $(J_2)$ exchange interactions in the real superconducting quantum computer with qubits ranging up to 100. In particular, we implement, for the first time, the Hamiltonian with the next-nearest neighbor exchange inte...
π Highlighted Papers
βQuantum enhanced Monte Carlo simulation for photon interaction cross sections
Authors: Euimin Lee, Sangmin Lee, Shiho Kim β’ Submitted: Submitted β’ arXiv: arXiv:2502.14374
Abstract: Γ’ΒΒ¦as the dominant attenuation mechanism, we demonstrate that our approach reproduces classical probability distributions with high fidelity. Simulation results obtained via the IBM Qiskit quantum simulator reveal a quadratic speedup in amplitude estimation compared to conventional Monte C...
Time-adaptive single-shot crosstalk detector on superconducting quantum computer
Authors: Haiyue Kang, Benjamin Harper, Muhammad Usman, Martin Sevior β’ Submitted: Submitted β’ arXiv: arXiv:2502.14225
Abstract: Γ’ΒΒ¦in two scenarios: simulation using an artificial noise model with gate-induced crosstalk and always-on idlings channels; and the simulation using noise sampled from an IBM quantum computer parametrised by the reduced HSA error model. The presented results show our method's efficacy hing...
Quantum simulation of a qubit with non-Hermitian Hamiltonian
Authors: Anastashia Jebraeilli, Michael R. Geller β’ Submitted: Submitted β’ arXiv: arXiv:2502.13910
Abstract: Γ’ΒΒ¦-broken regime surrounding an exceptional point. Quantum simulations are carried out using IBM superconducting qubits. The results underscore the potential for variational quantum circuits and machine learning to push the boundaries of quantum simulation, offering new methods for explor...
Comment on "Energy-speed relationship of quantum particles challenges Bohmian mechanics"
AurΓΒ©lien Drezet, Dustin Lazarovici, Bernard Michael Nabet
In their recent paper [Nature 643, 67 (2025)], Sharaglazova et al. report an optical microcavity experiment yielding an "energy-speed relationship" for quantum particles in evanescent states, which they infer from the observed population transfer between two coupled waveguides. The authors argue tha...