A quantum processing system for high-temperature topological quantum computing comprises a Cryogenic Enclosure operating at approximately 4 Kelvin. The system houses a Quantum Processor Module with a twisted bilayer high-temperature superconductor structure. This structure induces a chiral topological phase, hosting robust Majorana Zero Modes that serve as logical qubits. A Control Layer with YBCO-based Rapid Single Flux Quantum (RSFQ) Logic Circuits is monolithically integrated to perform braiding operations and readout, providing intrinsic error suppression through a large superconducting gap. This architecture eliminates the need for dilution refrigeration, enabling compact, industrially viable, and intrinsically fault-tolerant quantum processing.
A quantum processing system for high-temperature topological quantum computing comprises a Cryogenic Enclosure operating at approximately 4 Kelvin. The system houses a Quantum Processor Module with a twisted bilayer high-temperature superconductor structure. This structure induces a chiral topological phase, hosting robust Majorana Zero Modes that serve as logical qubits. A Control Layer with YBCO-based Rapid Single Flux Quantum (RSFQ) Logic Circuits is monolithically integrated to perform braiding operations and readout, providing intrinsic error suppression through a large superconducting gap. This architecture eliminates the need for dilution refrigeration, enabling compact, industrially viable, and intrinsically fault-tolerant quantum processing.
Current quantum computing architectures face a thermodynamic bottleneck where the energy cost of classical error correction scales superlinearly with system size. Reliance on dilution refrigeration and active syndrome extraction imposes a latency penalty that renders hybrid paradigms unscalable for exascale applications. An architecture for Chiral High-Temperature Topological Processing (CHTP) is defined to leverage spontaneous symmetry breaking in twisted bilayers. Engineering a 45-degree twist between d-wave layers induces a chiral d+id order parameter with a 25 meV spectral gap. This intrinsic thermodynamic protection suppresses thermal errors by a factor of e−70 at 4 Kelvin. Monolithic integration of Rapid Single Flux Quantum (RSFQ) logic eliminates the input-output latency bottleneck inherent in room-temperature control. This framework establishes a rigorous blueprint for rack-mountable quantum hardware compatible with industrial Pulse Tube cryogenics.
This invention discloses a topological quantum microelectronic architecture for fault-tolerant computing and cryptographic resilience. The core utilizes topological qubits based on Majorana zero modes at topological insulator-superconductor interfaces, providing intrinsic protection against local decoherence. An active control layer dynamically modulates the topological superconducting gap via piezoelectric strain tuning to optimize coherence times. Crucially, the system integrates a hardware-enforced security protocol, Quantum Entropy-Driven Cryptographic Erasure. This protocol monitors physical integrity using embedded Physical Unclonable Functions and electromagnetic sensors. Upon detecting unauthorized tampering, the system autonomously executes an irreversible erasure sequence. It generates a true random string from on-chip quantum shot noise to cryptographically wipe classical keys and applies targeted microwave pulses to drive the qubit array into a maximally mixed state, permanently erasing quantum information and ensuring hardware security.
Abstract: The rapid advancement of quantum computing is largely driven by innovations in quantum chip architectures, with superconducting and topological qubits emerging as the most promising candidates for scalable and fault-tolerant quantum processors. Superconducting qubits, built using Josephson junctions, have demonstrated significant progress in coherence time, gate fidelity, and quantum error correction, making them the backbone of leading quantum processors such as IBM’s Eagle and Google’s Sycamore. Meanwhile, topological qubits, based on Majorana zero modes (MZMs) and non-Abelian anyons, offer intrinsic error resistance, reducing the computational overhead required for fault-tolerant quantum operations. This chapter explores the fundamental principles, fabrication techniques, and scalability challenges associated with these next-generation quantum chips, highlighting key advancements in hybrid quantum architectures, quantum error mitigation, and cryogenic quantum-classical interfacing. Additionally, it examines the geopolitical and ethical considerations of quantum supremacy, along with the transformative impact of next-gen quantum chips on AI, cryptography, materials science, and optimization problems. As research accelerates, the path toward scalable, fault-tolerant quantum computing is becoming clearer, paving the way for a future where quantum processors outperform classical supercomputers in solving the world’s most complex challenges. Keywords: Quantum chips, superconducting qubits, topological qubits, Josephson junctions, Majorana zero modes, quantum error correction, hybrid quantum architectures, fault-tolerant quantum computing, cryogenic electronics, quantum-classical interfacing, scalable quantum processors, AI-driven quantum computing, quantum supremacy, post-quantum cryptography, nanofabrication, quantum hardware innovation
Background: Topological quantum computation is regarded as the most robust paradigm for quantum information processing, exploiting the global invariance of topological order to store information and resist local noise. However, the mainstream route—based on non-Abelian braiding statistics of Majorana zero modes—faces two inherent bottlenecks: (1) the fabrication of required topological superconductors depends critically on ultra-low temperatures (typically <100 mK) and precise external field tuning, with long-standing insufficient experimental reproducibility; (2) non-Abelian braiding operations have yet to yield reproducible zero-level experimental evidence. The common root of both bottlenecks is that the Majorana scheme grounds topological protection in a topological superconducting phase that has not been experimentally confirmed. Therefore, seeking an orthogonal pathway independent of Majorana particles is among the most urgent problems in topological quantum computing. Methods: This paper proposes a topological qubit scheme orthogonal to the Majorana route, based on chiral circulation topological defects predicted by Causal Set Gauge-Flow Theory (CSGFT). Within the CSGFT framework, material particles are identified as stable circulation topological defects, whose chirality marker σ = ±1 is a topological invariant protected by the discrete vector flux conservation law. We propose a qubit encoding using σ = +1 for |0⟩ and σ = −1 for |1⟩; phase circulation provides superposition state manipulation; flux conservation provides topological protection; and refractive index measurement provides readout. We present a complete encoding, manipulation, and readout scheme, prove the topological completeness of the chiral two-level system, and conduct quantitative comparisons with the Majorana route. Based on experimental data from the quantum Hall effect and quantum anomalous Hall effect, we extract the protection gap of chiral topological degrees of freedom; based on publicly available data from the FeSe/SrTiO₃ system, we fit the parameters of the CSGFT refractive index matching model and derive the quantitative relationship between refractive index matching and coherence time. Results: (1) The chirality marker σ = ±1 naturally forms a two-level system defined by topological invariants, whose ground-state discreteness is a direct consequence of topological properties and does not depend on any continuous parameters. (2) The flux conservation law guarantees that once a circulation defect forms, its chirality is invariant under continuous deformation, and local noise cannot alter the chirality marker—this is the most fundamental distinction from the Majorana scheme (the latter relies on the gap of a topological superconducting phase, while the former relies on a universal conservation principle). (3) The protection gap of chiral topological degrees of freedom is 1–10 meV, corresponding to an upper operating temperature limit of 10–100 K, which is 2–3 orders of magnitude higher than the Majorana scheme (<100 mK). (4) The FeSe/SrTiO₃ refractive index matching fit yields α ≈ 6.3 ± 1.5, T_c,0 ≈ 82 ± 12 K, with R² ≈ 0.89; from this we predict that each 10% improvement in refractive index matching increases the circulation defect coherence time by approximately 1.9-fold. (5) CSGFT predicts a decoherence time 2–4 orders of magnitude longer than standard theory (mesoscopic scale N = 10³–10⁵). (6) Three candidate material systems (InAs quantum rings, topological insulator rings, and FeSe/SrTiO₃ interfaces) are specified with concrete parameters and device designs. Conclusions: The core contribution of this paper is the proposal of a topological qubit scheme orthogonal to the Majorana route—using the chiral topological charge of CSGFT circulation defects as the encoding degree of freedom and flux conservation as the source of topological protection. This scheme does not require Majorana particles or a topological superconducting phase, and its material selection range is far broader than the Majorana route, with a theoretically predicted operating temperature 2–3 orders of magnitude higher. The chiral circulation topological defect qubit is a testable orthogonal pathway: it does not pursue Majorana fermions, but rather exploits the chiral topological charge protected by flux conservation. If experimentally verified, it would constitute an entirely new avenue in topological quantum computing.
Abstract Solid-state quantum computing is fundamentally limited by decoherence induced by environmental interactions. Here, we present a theoretical framework for a fault-tolerant quantum computing platform operating at room temperature, based on the topological protection of orbital angular momentum (OAM) monopoles in chiral semimetals. We propose a qubit architecture where logical states are encoded in superpositions of chiral currents, whose stability is enforced by the chiral anomaly. First-principles calculations and quantum dynamics simulations predict coherence times (T₂) exceeding 500 ms at 300 K, a value orders of magnitude greater than current cryogenic systems. Coupling these solid-state qubits to photonic OAM modes is predicted to extend T₂ into the 10–100 s range. This framework, which leverages intrinsic topological and chiral properties of matter to suppress decoherence, provides a viable route towards scalable, energy-efficient quantum technologies.
Standard superconducting quantum processors are currently constrained by the thermodynamic bottleneck of millikelvin dilution refrigeration, which precludes the integration of high-speed control logic and limits scalability. This reliance on the 20 mK regime creates a “mainframe constraint” where the cooling infrastructure scales non-linearly with computational volume. Here, a 4-Kelvin topological processor architecture is introduced, utilizing twistronic Bi-2212 heterostructures with a 30 meV spectral gap. By engineering a time-reversal symmetry broken state at a 45-degree twist angle, a “thermal firewall” is established that suppresses decoherence (Γ≈80) at temperatures accessible to industrial pulse tube cryocoolers. This architecture enables the co-location of energy-efficient RSFQ control logic with the quantum plane, redefining the system as a portable, deployable technology.