--- title: Exclusive: Coherence Quantum raises €2.78M to cut the... description: Finnish startup Coherence Quantum, spun out of Aalto University, raised €2.78 million in seed funding led by Lifeline Ventures, with participation from former... canonical: https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses copyright: © 2026 Daily Dev Ltd. terms: https://daily.dev/tos/ twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Exclusive: Coherence Quantum raises €2.78M to cut the heat inside quantum computers | daily.dev og:description: Finnish startup Coherence Quantum, spun out of Aalto University, raised €2.78 million in seed funding led by Lifeline Ventures, with participation from former... og:url: https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses og:image: https://api.daily.dev/og/posts/A34s1LSEs.png og:image:alt: Exclusive: Coherence Quantum raises €2.78M to cut the heat inside quantum computers og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Exclusive: Coherence Quantum raises €2.78M to cut the heat inside quantum computers **[The Next Web](https://daily.dev/sources/tnw)** · 11 min read · 0 upvotes · 0 comments ## Summary Finnish startup Coherence Quantum, spun out of Aalto University, raised €2.78 million in seed funding led by Lifeline Ventures, with participation from former MySQL CEO Mårten Mickos. The company is building cryogenic control technology to reduce the number of cables needed to control qubits inside dilution refrigerators as quantum computers scale. CEO Aashish Sah explains that scaling from hundreds to a thousand qubits requires at least 3,000 control lines, more than standard fridges can handle, and that over 99% of a control signal dissipates as heat inside the fridge, creating noise. The company has four patent applications covering components like a tunable filter and a 'quantum dial' designed to isolate qubits from noise while keeping them controllable, aiming to move signal processing closer to the quantum processor. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why do quantum computers need so many control cables as they scale up? Each qubit requires its own control line, so scaling from hundreds to a thousand qubits requires at least 3,000 control lines, while standard dilution refrigerators can only fit about a thousand lines. This creates a wiring bottleneck that limits how large quantum processors can grow, since more cables also bring more heat into the cryogenic environment. _Anyone evaluating quantum hardware scaling bottlenecks can follow emerging approaches like this on daily.dev._ ### How much of a control signal sent to a quantum computer is lost as heat before reaching the qubit? More than 99% of a control signal sent from room temperature dissipates inside the fridge before reaching the qubit, warming the cryogenic environment and creating noise that disturbs qubit stability. This heat loss is described as physically and economically unsustainable at the scale the quantum computing industry is targeting. _Developers tracking quantum hardware engineering progress can keep up with findings like this on daily.dev._ ### What temperature do qubits actually experience inside a dilution refrigerator compared to the fridge's rated temperature? Qubits often behave as though they were at 50 to 70 millikelvin even though a modern dilution fridge cools the chip to around 10 millikelvin, because heat and noise leak in along the wiring. Bringing that effective temperature down closer to the fridge's base temperature makes qubits more stable and reduces computational errors. _Those following quantum hardware noise-reduction techniques can track developments like this on daily.dev._ ## Similar posts on daily.dev - [S-Transistors Raises €2.6 Million Pre-Seed Round to Introduce Superconducting Transistor Platform](https://daily.dev/posts/s-transistors-raises-2-6-million-pre-seed-round-to-introduce-superconducting-transistor-platform-d0thf3ahe) · The Quantum Insider · 0 upvotes · 0 comments - [A Quantum Components Industry Is Emerging](https://daily.dev/posts/a-quantum-components-industry-is-emerging-0b5tgehgk) · IEEE Spectrum · 2 upvotes · 0 comments - [A quantum chip that runs itself, and the IBM deal it explains](https://daily.dev/posts/a-quantum-chip-that-runs-itself-and-the-ibm-deal-it-explains-wf0etuzvx) · The Next Web · 0 upvotes · 0 comments - [Oratomic raises $300M to build a viable quantum computer that needs only 20K qubits](https://daily.dev/posts/oratomic-raises-300m-to-build-a-viable-quantum-computer-that-needs-only-20k-qubits-vmhcbfmge) · TechCrunch · 0 upvotes · 0 comments --- Tags: [#startup](https://daily.dev/tags/startup), [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Exclusive: Coherence Quantum raises €2.78M to cut the heat inside quantum computers","url":"https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses"},"datePublished":"2026-10-20T06:11:39.754Z","dateModified":"2026-10-20T07:51:09.864Z","description":"Finnish startup Coherence Quantum, spun out of Aalto University, raised €2.78 million in seed funding led by Lifeline Ventures, with participation from former...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/784e49878eb346af69c4635d08891755?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/784e49878eb346af69c4635d08891755?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Next Web","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Next Web","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/tnw","url":"https://daily.dev/sources/tnw"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"startup,quantum-computing","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Next Web","item":"https://daily.dev/sources/tnw"},{"@type":"ListItem","position":3,"name":"Exclusive: Coherence Quantum raises €2.78M to cut the heat inside quantum computers"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/exclusive-coherence-quantum-raises-2-78m-to-cut-the-heat-inside-quantum-computers-a34s1lses#faq","mainEntity":[{"@type":"Question","name":"Why do quantum computers need so many control cables as they scale up?","acceptedAnswer":{"@type":"Answer","text":"Each qubit requires its own control line, so scaling from hundreds to a thousand qubits requires at least 3,000 control lines, while standard dilution refrigerators can only fit about a thousand lines. 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