#quantumera

Quantum Innovation: Novel Thermal Processing Increases hBN Emitter Yield Tenfold

Boron Nitride hexagon

Solid-state quantum optics advanced with the fabrication of quantum emitters in hexagonal boron nitride (hBN) by an international team. The research offers a new method for producing high-density, narrowband quantum emitters with optically programmable spins, essential for quantum sensing and information processing, led by Benjamin Whitefield and Mehran Kianinia.

Finding Reliable Quantum Interfaces

To create spin-based quantum technologies, solid-state systems where electron spins are coupled with optical transitions are needed. These interfaces allow stationary spin qubits to become “flying” photon qubits, enabling a quantum internet. Due to its unique structural properties and ability to support steady, dazzling emitters, layered Van der Waals (vdW) crystal hexagonal boron nitride (hBN) has become a prominent option.

The field has reoccurring bottlenecks. Creating isolated single photon emitters with predictable spin transitions on demand has been tricky. These faults are hard to manufacture reliably and efficiently for large-scale quantum applications.

A “Single Step” Method

The group used single-step thermal processing to manufacture a high density of narrowband quantum emitters on hBN flakes.

Narrowband quantum emitters release photons in a certain frequency range. Photons must interact and be indistinguishable for quantum networking and many quantum protocols. Thermal processing's simplicity may make quantum devices more scalable than more complicated production processes.

Record-breaking efficiency

The study's main finding is the new procedure's efficacy. More over 25% of emitters showed optical spin readouts at room temperature, according to the study.

This value stands out since it improves all previous results by an order of magnitude. In many earlier experiments, finding a functional emitter with an addressable spin was like finding a needle in a haystack. The unique approach turns the haystack into a predictable supply of quantum components. By performing these readouts at ambient temperature, quantum sensors can be widely used without expensive and huge cryogenic cooling equipment.

Understanding Spin Complexes

The analysis illuminates these faults' mechanisms. The generated spin complexes show S = 1 and S = 1/2 transitions.

Note: General quantum physics defines a doublet state as S = 1/2 and a triplet spin state as S = 1. These define the electron system's angular momentum.

Researchers explain these multiple changes using a charge transfer mechanism. In particular, charges traveling inside the hBN lattice from highly coupled to weakly coupled spin pairs cause the transitions. Understanding this complex interaction between charges and spins allows more accurate emitter control and improves our understanding of spin complexes in two-dimensional materials.

Applications in Information and Sensing

Broad implications of this work. The team's single spin-photon interactions in multilayer vdW materials enabled several high-tech applications:

Quantum Sensing: These spins inside a multilayer material can be read out at room temperature and placed near external samples. Thus, they are ideal for nanoscale temperature or magnetic field measurement. Quantum Information Processing: Photonic circuits may combine emitters due to their high density and narrowband features, making them suitable for quantum repeaters and computers.

Material Science: The study improves our understanding of spin complex-defect interactions in Van der Waals crystals.

Joint Work

Benjamin Whitefield, Helen Zhi Jie Zeng, James Liddle-Wesolowski, Islay O. Robertson, Viktor Iňdy, Kenji Watanabe, Takashi Taniguchi, Milos Toth, Jean-Philippe Tetienne, Igor Aharonovich, Mehran Kianinia, and experts in hBN crystal formation contributed to this discovery's high-quality material science.

The Quran reveals QINFI: Reimagining Quantum Financial Security Quranium launched QINFI, a quantum-secure financial SuperApp, marking a turning point in international finance. The Swiss-based startup built this cryptographically safe platform to connect tokenised banking, digital assets, and payments. The introduction comes at a vital time when the world's financial rails are carrying over $290 trillion a year, yet they still use outdated technologies that lack quantum era security.

Filling Online Marketplace Gaps

As tokenised assets become more popular, $8 trillion may be on-chain by 2028, widening the gap between modern assets and outdated security solutions. Unlike application-first solutions, QINFI is strongly related to Quranium's protocol-level security. This Layer-1 blockchain provides a “future-proof” foundation for the $10 trillion in digital assets that will be created in the future, protecting the sector from new cryptographic threats.

Portfolio management, on-chain asset access, and banking-grade payments are integrated into the platform. This amalgamation simplifies user operations while meeting institutional-grade security and regulatory standards. QINFI resolves everything on quantum-secure rails, from regular financial transactions to institutional tokenised market engagement.

How “Uncrackable” Security Technology Works

The company claims that SLH-DSA, the most conservative and future-proof security primitive, underpins Quranium's resilience. Many Layer-1 blockchains use ECDSA encryption, but Quranium claims they are becoming obsolete as processing power rises. Since “Store Now, Decrypt Later” is real, smart contracts and wallets are harmful. Quranium's technical architecture has advantages over lattice-based competitors. The most reliable primitive is hash-based encryption. Using stateless signatures instead of stateful ones, the protocol provides decades-long security. This meets the 10- to 30-year validity standards for regulated assets like equities and health data. EVM-compatible Network allows developers to install pre-existing Solidity contracts onto the quantum-secure base without starting from scratch.

Complete Financial Ecosystem

QINFI provides consumer access to more Quranium-developed products. The native quantum-secure QSafe Wallet protects assets on over 70 networks, including Solana, Ethereum, and Bitcoin. QRemix AI's AI-powered IDE lets developers write and implement smart contracts in minutes. A number of QINFI SuperApp functions are protected by quantum-secure encryption. These include: Manage tokenised real-world assets. Instant cryptocurrency wallet-to-bank account transfers. Trading stocks and cryptocurrencies. The “1-tap” access to loans and holding incentives. Making everyday cryptocurrency card payments.

The Way Forward

Quranium has a 200,000-member community with over 40,000 on-chain wallets. A whitelist has been created to enable early access to the QINFI SuperApp as the firm continues its “Be Uncrackable” global roadshow to promote awareness of post-quantum digital security.

The Magic Moment: Quantum Investments Drive Cybersecurity Strategic Transformation.

Start of the Quantum Era

With unprecedented financial and scientific interest, quantum technology is experiencing a critical boom. This expansion is a “magic moment” for quantum investment, say analysts. Defence and security now prioritise quantum-secure technology. In addition, the large monetary influx is stimulating quantum mechanics innovation in many areas.

This new technology is a turning point for cybersecurity innovation, not just a security gain. The race to integrate quantum-resistant solutions into essential infrastructure is critical because powerful quantum computers could threaten classical computing systems and render current encryption standards obsolete.

Quantum investments peak

This quantum technology investment “magic moment” reveals how much public and commercial opinion has shifted. A time of strong curiosity, increased investment, and excitement about quantum technology's commercialisation and transformation.

Quantum research requires this financing wave to move from lab to field. These money must be wisely spent to defend our digital infrastructure and support vital research. This “magic moment” indicates quantum technology threatens world security and economy.

Quantum-Secure Hardware: Strategic Turning Point

The invention and deployment of quantum-secure hardware is the most important and unique cybersecurity problem amid quantum computing hype. This hardware clearly represents a tipping point.

An “inflection point” is a crucial moment in an industry or market that requires a comprehensive strategy and technological overhaul. Post-Quantum Cryptography (PQC) technology designed to withstand quantum computer cryptanalytic attacks requires organisations to forsake outdated systems and adopt new security strategies.

The root-of-trust security of quantum-secure hardware makes its adoption essential. Software-only upgrades are less secure than integrated hardware solutions against sophisticated long-term threats. Future cybersecurity innovation must emphasise physical security.

Hardware-driven cybersecurity innovation The necessity for quantum-secure electronics has spurred innovation. It forces governments and corporations to rethink secure communication, data security, and authentication.

This strategic shift requires cybersecurity innovation expenditures in physical chips, modules, and devices that leverage quantum principles to produce and distribute cryptographic keys or incorporate quantum-resistant algorithms. Quantum-secure hardware ensures that digital system architecture includes defences as quantum capabilities progress. This forward-thinking strategy distinguishes strategic security innovation from preparation.

The enormous investment of the “magic moment” and the need for safe core infrastructure define the technical environment of the next decade. Critical infrastructure management, security protocol development, and hardware production leaders must collaborate to deploy these strategic defences.

Conclusion: Future Security

Quantum technology's “magic moment”—the investment boom—drives change. The true security challenge is adopting quantum-secure technology strategically. This gear marks a cybersecurity innovation turning point.

France Quantum

France advances in quantum era mid-2025

In July and August 2025, France strengthened its quantum technology leadership in policy, industry, and research. The quantum age impacts France's ambitious governmental objectives, vast investment plans, scientific discoveries, and foreign relationships. In computers, navigation, sensing, communications, and space, quantum technology is advancing rapidly.

National Strategy: Quantum Future Security

Under President Emmanuel Macron, France is raising its defence goals and commitment to disruptive technologies like AI and quantum in the face of geopolitical uncertainty. France's defence budget is scheduled to rise from €50.5 billion to €67 billion in 2030 to avoid lapses in these important sectors.

Strategic actions like the Franco-British engineering centre with Imperial College and CNRS, which President Macron attended, have backed deeptech. The €54 billion France 2030 investment plan has survived budget cuts, and a new space and quantum technology research program demonstrates continued funding.

Policymakers acknowledge the “quantum decade”'s tremendous growth across Europe. However, even as hardware access increases, Europe may fall behind in the global race for quantum usefulness if it does not spend more in software development. This suggests a future focus for France's quantum strategy.

Industry: Building Capabilities and Partnerships

France quantum enterprises are leading innovation by forming relationships in North America and Europe to build application-ready, scalable, and sovereign solutions. Key players made substantial progress:

Quandela is a European photonic quantum computing leader. To study hybrid AI and quantum computing technologies, the firm is developing innovative quantum machine learning (QML) models with Mila, the Quebec Artificial Intelligence Institute. Quandela supplied quantum computers to European customers and integrates AI with NVIDIA. Quandela is also working with attocube systems GmbH on Lucy, a European quantum computer, demonstrating Franco-German cooperation.

In order to achieve quantum advantage, Pasqal and IBM have created a formal framework for recognising and proving when quantum computers outperform classical systems in relevant tasks.

Quobly, a leading quantum microelectronics business, has strategically collaborated with Inria. This alliance combines silicon-based quantum hardware with cutting-edge control software to produce a fully integrated, fault-tolerant, and scalable quantum computing architecture and a sovereign value chain.

Thales labs in Palaiseau are researching quantum physics-based medical diagnostics to create pen-sized, hundreds-of-fold more precise devices.

HiQuTe Diamond, a French deeptech firm, raised €7.5 million to industrialise the production of high-quality diamonds for next-generation sensors, power electronics, and quantum computing.

SEALSQ Corp, a semiconductor and post-quantum technology business, acquired IC'ALPS with France Ministry of Economy, Finance, and Industrial and Digital Sovereignty clearance.

Leading fault-tolerant quantum computing startup Alice & Bob and Inria have submitted a new peer-reviewed publication describing the most hardware-efficient method for establishing “magic states” on superconducting quantum computers, a crucial step towards quantum computation.

NVIDIA CEO Jensen Huang emceed VivaTech 2025, where quantum computing had its “mainstream moment” and gained public and industry attention.

Early Quantum Science Research

France research is breaking new ground and setting international standards:

Researchers from C12 Quantum Electronics and multiple French institutions claimed a record 1.3 microseconds of coherence in a carbon nanotube circuit. This is 100 times better than carbon-based implementations and 10 times better than silicon quantum dot devices. In a carbon nanotube gatemon qubit, a France-led research determined charge noise to be the main driver of decoherence and achieved 200 nanosecond coherence. These findings make carbon nanotubes a promising quantum technology choice.

EPFL researchers developed a Rydberg atom-based numerical method for simulating quantum spin liquids, which has advanced topological quantum systems research.

For developing novel quantum architectures, Christopher Bäuerle received an ERC Advanced Grant 2024, while Igor Ferrier-Barbut received a CNRS Bronze Medal 2025 for storing and modifying quantum information via light. France promotes science.

Alain Aspect, the 2022 Nobel Prize in Physics winner for his quantum entanglement experiments, was elected to the Académie française, boosting France's scientific status.

Academic Events: Fostering Talent and Collaboration

France, a quantum education and event hub, promotes global cooperation:

The June France Quantum 2025 conference at Station F in Paris drew approximately 1,000 people and 60 foreign experts. An “After Movie” broadcast in July showed how well the conference introduced quantum technologies worldwide.

Professor Anne Broadbent leads a strong Canada-France relationship on nonlocal boxes that is advancing quantum research and giving students life-changing overseas experiences.

Q2B Paris, Europe's premier quantum conference, will bring together worldwide academics, business executives, and parliamentarians in September 2025 to integrate scientific achievements with commercial and policy aims.

Quantum Zero Knowledge Proofs

Quantum Zero Knowledge Proofs Resist Superposition Attacks with Learning With Errors: A Key Post-Quantum Security Step.

Quantum News covers cryptography developments that address the ongoing issue of safe information sharing. This is crucial given the rapid rise in computing capacity and the threat of quantum computing. Researchers are perfecting methods to ensure data authenticity and privacy even against quantum-capable adversaries.

Zero-knowledge proofs are key to this accomplishment. These advanced cryptographic methods let one party prove a statement without further information. This is needed for internet privacy.

Superposition assaults are a major shortcoming that the current study solves instantly. In such attacks, a malicious verifier may try to acquire a quantum superposition of potential protocol transcripts. They could retrieve crucial quantum prover data that should be kept private.

Andrea Coladangelo, Ruta Jawale, Dakshita Khurana, Giulio Malavolta, and Hendrik Waldner meticulously summarised the work, “MPC in the Quantum Head (or: Superposition-Secure (Quantum) Zero-Knowledge)”. Ishai et al. introduced “MPC-in-the-head” (multi-party computing in the head), which they extended. Effective zero-knowledge protocols are created by embedding a calculation inside the cryptographic evidence. This research strengthens the protocol against quantum threats by expanding this to complex multi-party compute settings.

Addressing Malicious Verifiers: Zero-Knowledge Proofs of Quantumness at Dawn

Proofs of quantumness (PoQ) methods used to ensure that an honest quantum prover might persuade a verifier (quantum completeness) and that a classical prover could not misrepresent quantum capabilities. However, the classical verifier acting maliciously was crucial but unexplored.

A factoring-based PoQ technique, like Shor's approach for factoring big integers, may have a rogue verifier. Malicious verifiers (V) may replace a purposefully selected ‘N‘ (such as an RSA public key) for a randomly generated very large integer. This could allow V* to gather factors p and q beyond only proving quantumness by using the quantum prover (P) to factor ‘N*’. The need of preventing malicious verifiers from accessing valuable quantum prover data is highlighted.

The unique concept of Zero-Knowledge Proofs of Quantumness (ZKPoQ) applies here. ZKPoQ's intuitive zero-knowledge property states that the classical verifier's knowledge from the quantum prover shouldn't be more than what a classical prover could reproduce with the same verifier. The interactive proving technique should only prove “the prover possesses quantum capabilities”. The quantum server's processing capability is no longer “swindled by classical users” during verification, preventing the verifier from misusing the quantum prover's capabilities.

Learning With Errors (LWE): Post-Quantum Security's New Foundation

Learning With Errors (LWE) is key to the new protocols. LWE, a computationally difficult mathematical issue, underpins several post-quantum cryptography methods. It boosts confidence in the protocols' security.

Damgard et al. showed that superposition-resistant zero-knowledge protocols often employed “perfectly hiding and unconditionally binding dual-mode commitments” and other specialised promises. Cryptographic approaches sometimes lacked computational presumptions. However, the current solution deliberately builds its protocols on the well-known LWE problem to overcome this restriction.

Additionally, LWE provides LWE-based PoQ, an essential family of PoQ approaches. Interactive cryptography between a quantum prover and a classical verifier is used in these systems. Quantum prover responds to verifier challenges. Compared to factoring-based PoQ, LWE-based PoQ requires fewer quantum resources to implement. Unlike sampling-based PoQ, which is computationally intensive to verify, LWE- and factoring-based PoQ approaches enable classical verification.

Key New ZKPoQ Protocol Innovations:

Within the ‘common reference string’ (CRS) model, researchers propose two new three-round techniques. The prover and verifier share a public random string under this cryptographic paradigm. Validating calculations while protecting data is possible using these methods.

Resistance to Superposition Attacks: Verifiers try to acquire a quantum superposition of potential protocol transcripts, but the protocols are designed to withstand this. This talent is crucial for post-quantum security.

Diverse Complexity Class Support:

The first protocol provides a zero-knowledge argument for NP (nondeterministic polynomial time) problems. The direct reduction of its security to LWE difficulty provides a strong guarantee.

With the second protocol, QMA (quantum nondeterministic polynomial time), the quantum equivalent of NP, is also resistant. This shows the framework's adaptability by offering a LWE-based zero-knowledge argument for quantum difficulties.

Security Mechanism via Extractable NIZK: By carefully managing information flow, the protocols prevent the verifier's superposition state from revealing the secret being confirmed. Preventing quantum superposition attacks requires this. The verifier's extractable Non-Interactive Zero-Knowledge (NIZK) proof is a technological advance.

In the factoring-based ZKPoQ scheme, the verifier must provide an extractable-NIZK proof of ‘N’s factors (p, q). Preventing a malicious verifier from producing a valid proof without comprehending the elements limits their attitude.

For the LWE-based ZKPoQ approach, the verifier offers an extractable-NIZK proof of the LWE secret. This NIZK's “extractability” allows a classical simulator to duplicate the quantum prover's communication without a genuine quantum resource by extracting secret information from the verifier's evidence, such as p, q, or the LWE secret “s”. Simulation legally defines zero-knowledge. Even if a classically secure extractable-NIZK proof is sufficient for this transformation, post-quantum secure proofs (based on LWE) are needed for certifiable randomness from quantum devices or key leasing.

Dive into the world of quantum computing and discover how this groundbreaking technology is solving complex optimization problems faster than ever before. From revolutionizing supply chains to transforming healthcare, the possibilities are endless!

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