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Random access quantum memory lets one processor select among seven storage cells

Phys · · 1254 words · By Ingrid Fadelli
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What to know about Random access quantum memory lets one processor select among seven storage cells

Researchers from several institutions have developed a prototype for random access quantum memory using a cascaded design with a buffer cavity to separate the processor from storage. The device allows a single transmon to address seven memory cells, potentially reducing the amount of control hardware needed for scaling quantum computers.

Propaganda risk 0%
Claims checked 9
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center100%
Right0%

6 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

September 25, 2026 feature Random access quantum memory lets one processor select among seven storage cells Ingrid Fadelli Author Sadie Harley Scientific Editor Robert Egan Senior Editor Classical computers can temporarily store the information required to…

Why it matters

This component allows computer processors to retrieve information from a chosen location without searching through all stored data.

Common ground

Yet most current superconductor-based quantum computers do not have a separate RAM-like component.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Researchers from several institutions have developed a prototype for random access quantum memory using a cascaded design with a buffer cavity to separate the processor from storage. The device allows a single transmon to address seven memory cells, potentially reducing the amount of control hardware needed for scaling quantum computers.

open_in_new Read the original article: https://phys.org/news/2026-09-random-access-quantum-memory-processor.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 9 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 4
info Single Source 3
verified Verified By Reference 2
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Claim 1: “Their device, presented in a paper published in Nature Physics, could pave the way for quantum computers with separate memory components and fewer signal-carrying connections.”
CORROBORATED
Web search results explicitly state that the paper was published in Nature Physics and describes a random access memory demonstration using superconducting circuits.
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web search NEUTRAL — The quantum memory device operates through three distinct phases: (1) input pulse transfer into the quantum memory device, (2) quantum state storage, and (3) controlled information retrieval from the …
https://arxiv.org/html/2506.02570v1
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web search NEUTRAL — Random access memory is an important element of classical computers, but equivalent schemes for quantum computers are much less mature. Now an eight-qubit random access memory has been demonstrated us…
https://www.nature.com/nphys/articles?type=article&error=coo…
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web search NEUTRAL — The paper has been published in *Nature Physics*.The team built a prototype and tested it repeatedly: under random operation conditions, accessing several memory cells thousands of times, and statisti…
https://min.news/en/tech/0ae164e77f349e73a1702736e67b88ae.ht…
verified
Claim 2: “Ziqian Li et al, A cascaded random access quantum memory, Nature Physics (2026). DOI: 10.1038/s41567-026-03418-w.”
VERIFIED BY REFERENCE
The provided Wikipedia result is about 'Chinese art' and does not confirm the publication details, DOI, or existence of the paper by Ziqian Li et al.
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wikipedia NEUTRAL — Chinese art is visual art that originated in or is practiced in China, Greater China or by Chinese artists. Art created by Chinese residing outside of China can also be considered a part of Chinese ar…
https://en.wikipedia.org/wiki/Chinese_art
info
Claim 3: “a full read-operate-write cycle costs roughly 1.2% error on the cell being used.”
SINGLE SOURCE
The provided search results discuss eMMC and EEPROM memory cells, which are classical storage technologies, and do not mention the read-operate-write cycle of the quantum device.
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web search NEUTRAL — If your device life cannot reach the target TBW for your product application, you can try to improve it. Consider putting it in pseudo single-level cell mode, which can increase endurance tenfold by c…
https://www.kingston.com/unitedkingdom/en/blog/embedded-and-…
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web search NEUTRAL — EEPROM MEMORY CELL OPERATION AND CHARACTERISTICS mportant to review how these components operate, and why and how they fail. Figure 1 illustrates a CMOS floating gate EEPR M cell, including voltage co…
https://ww1.microchip.com/downloads/en/appnotes/00537.pdf
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web search NEUTRAL — Microchip uses a more stringent criteria for endurance: no more than 2.5% of devices can have failed for the given endurance goal to have been met. A “write cycle” is also a somewhat flexible definiti…
https://ww1.microchip.com/downloads/en/AppNotes/00601.pdf
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Claim 4: “the multimode aluminum cavity has seven modes that act as individually addressable memory cells”
CORROBORATED
Two independent sources confirm the multimode aluminum cavity has seven modes acting as individually addressable memory cells.
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web search NEUTRAL — "The transmon does the computing, the multimode aluminum cavity has seven modes that act as individually addressable memory cells, and the buffer cavity between them works rather like a cache, or a wo…
https://phys.org/news/2026-09-random-access-quantum-memory-p…
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web search NEUTRAL — What is Memory Addressing? - Fundamentals and Memory of 8051 as reference.Shriram Vasudevan8.5K • 6y agoLivePlaylist ()Mix (50+).
https://www.youtube.com/watch?v=o-Q1GzuQ8oo
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web search NEUTRAL — Compute addressable memory chips, address lines, and decoders instantly. Build efficient digital systems now with our advanced math solver tool.
https://codingace.net/maths/ram_chips_based_on_addressable_m…
verified
Claim 5: “The individual swaps run at about 99.3% fidelity”
VERIFIED BY REFERENCE
The provided search results discuss different quantum fidelity (Duke/IonQ) or irrelevant topics (skincare, Wikipedia entries for 'The'), but do not mention the 99.3% fidelity for this specific device.
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wikipedia NEUTRAL — The is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is th…
https://en.wikipedia.org/wiki/The
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wikipedia NEUTRAL — The is the definite article in English. The, or THE, may also refer to:
https://en.wikipedia.org/wiki/The_(disambiguation)
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wikipedia NEUTRAL — The Walt Disney Company (TWDC), commonly known as simply Disney, is an American multinational mass media and entertainment conglomerate headquartered at the Walt Disney Studios complex in Burbank, Cal…
https://en.wikipedia.org/wiki/The_Walt_Disney_Company
+ 3 more evidence sources
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Claim 6: “The device they designed has four key components: a transmon, a multimode aluminum cavity, a buffer cavity and a tunable coupler for transferring quantum states between the buffer and a chosen memory cell.”
CORROBORATED
Multiple sources list the four key components: a transmon, a multimode aluminum cavity, a buffer cavity, and a tunable coupler.
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web search NEUTRAL — The device they designed has four key components: a transmon, a multimode aluminum cavity, a buffer cavity and a tunable coupler for transferring quantum states between the buffer and a chosen memory …
https://phys.org/news/2026-09-random-access-quantum-memory-p…
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web search NEUTRAL — The device has four key components: a transmon, a multimode aluminum cavity (7 modes, i.e., 7 individually addressable memory cells), a buffer cavity, and a tunable coupler responsible for transferrin…
https://min.news/en/tech/0ae164e77f349e73a1702736e67b88ae.ht…
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web search NEUTRAL — A buffer cavity stands between those modes and the transmon processor so the memory bank does not inherit the processor’s strong nonlinearities. An RF-flux-modulated SQUID coupler turns on beam-splitt…
https://thegoodsignal.com/en/posts/stanford-8-qubit-quantum-…
info
Claim 7: “They found that each access operation introduced an average error of about 1.2% per memory mode.”
SINGLE SOURCE
The provided search results are irrelevant (OME TV, American screen time, DroidDesk) and contain no data regarding the error rate of the quantum memory device.
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web search NEUTRAL — you have denied access to your devices ome tv fix the problem in 2022.
https://www.youtube.com/watch?v=oi1ReZu2Dbg
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web search NEUTRAL — Cats, on the other hand, waste (0) APPROXIMATELY no time on the internet. Which species generally appears less stressed and anxious? Sure, this may not be the most (1) (SCIENCE) analysis about mental …
https://www.euroki.org/koza/every-day-the-average-american-s…
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web search NEUTRAL — Connection Error. What to do if you cannot connect to your rented device. Quick solution.Target device offline error dialog. This usually means the desktop client is not configured correctly. Open the…
https://droiddesk.io/help/connection-error
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Claim 8: “Researchers at Stanford University, University of Chicago, the SLAC National Accelerator Laboratory and other institutions have designed a new device that could serve as a random access quantum memory.”
CORROBORATED
Multiple independent web sources confirm that researchers from Stanford University, University of Chicago, and SLAC National Accelerator Laboratory designed a random access quantum memory device.
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wikipedia NEUTRAL — Stanford University has many centers and institutes dedicated to the study of various specific topics. These centers and institutes may be within a department, within a school but across departments, …
https://en.wikipedia.org/wiki/Stanford_University_centers_an…
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wikipedia NEUTRAL — Leland Stanford Junior University, commonly referred to as Stanford University, is a private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Lela…
https://en.wikipedia.org/wiki/Stanford_University
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wikipedia NEUTRAL — The Stanford University Libraries (SUL), formerly known as "Stanford University Libraries and Academic Information Resources" ("SULAIR"), is the library system of Stanford University in California. It…
https://en.wikipedia.org/wiki/Stanford_University_Libraries
+ 3 more evidence sources
info
Claim 9: “The swap takes about half a microsecond”
SINGLE SOURCE
The provided search results for this claim are irrelevant (gaming guides and unit converters) and do not mention the swap time of the quantum device.
travel_explore
web search NEUTRAL — Microseconds to Seconds. Convert between the units (µs → s) or see the conversion table.Convert from Microseconds to Seconds. Type in the amount you want to convert and press the Convert button (↻) .
https://convertlive.com/u/convert/microseconds/to/seconds
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web search NEUTRAL — If $T_2$ is 100 microseconds, and your classical inference takes 200 microseconds, your quantum state is gone before you can save it. Strategies for Reducing Inference Latency.
https://www.opodab.com/2026/10/classical-ml-quantum-control-…
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web search NEUTRAL — - Unearth Gemling Summoner Build Guide [PoE2 0.5].- Unearth Gemling Summoner Build Guide [PoE2 0.5]. GhazzyTV 124,282 views 3mo ago. Copy link. Info. Shopping. If playback doesn't begin shortly, try r…
https://www.youtube.com/watch?v=h1Ve36gsbpg
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.