• Fri. Jun 2nd, 2023

SEEQC Unveils First Fully Digital Chips for Full-Stack Quantum Computers


Mar 20, 2023

Insider Transient

  • SEEQC launched a household of excessive velocity, energy-efficient Single Flux Quantum (SFQ) digital chips.
  • The chips are additionally totally built-in with qubits — a crucial milestone in constructing scalable error-corrected quantum computer systems and knowledge facilities.
  • Vital Quote: “SEEQC’s mission is to ship scalable, energy-efficient quantum computing for knowledge facilities and our strategy is thru the ​​digital chip-scale integration of key capabilities like readout, management, multiplexing, error correction, and classical knowledge processing.” — John Levy, co-founder, and CEO at SEEQC.

PRESS RELEASE —SEEQC, the digital quantum computing firm, launched a household of excessive velocity, energy-efficient Single Flux Quantum (SFQ) digital chips able to working all core qubit controller capabilities of a quantum pc on the identical cryogenic temperature because the qubits. The chips are additionally totally built-in with qubits — a crucial milestone in constructing scalable error-corrected quantum computer systems and knowledge facilities.

SEEQC’s digital chip expertise makes use of energy-efficient superconducting SFQ logic, working at speeds as much as 40 GHz, to implement classical qubit management, measurement, multiplexing and knowledge processing. Due to their low vitality necessities and decreased warmth dissipation, particularly in comparison with typical CMOS or CryoCMOS chips, SEEQC’s superconducting SFQ circuits will be proximally situated to the qubit chips at 20 milliKelvin within the type of built-in multi-chip modules with lively SFQ circuits speaking wirelessly and appropriate with all superconducting qubit sorts, together with fluxonium qubits, in addition to different qubit modalities like spin qubits. Multi-chip module structure, low energy and talent to function at very excessive velocity allows the implementation of hardware-efficient digital management, readout, and fast-processing qubit knowledge vital for quick, low latency, scalable quantum error-corrected quantum programs.

Moreover, the usage of SEEQC’s chips will considerably cut back quantum pc value and complexity by orders of magnitude by eliminating the necessity for almost all racks of costly room-temperature electronics interconnected to the qubit chips. Usually, a fancy tangle of analog wiring is required to transmit delicate qubit alerts between qubits and room temperature, and the alerts are extremely vulnerable to distortion by imperfections within the wiring. The result’s a prohibitively complicated and hardly scalable system. SEEQC’s lively multi-chip module structure addresses this drawback, decreasing system latency by obviating the necessity to ship knowledge from milliKelvin temperature to room temperature and again once more for fundamental capabilities reminiscent of readout and management.

By finding all practical parts on ultra-fast digital SFQ classical chips built-in with qubit chips in multi-chip modules, knowledge processing latency and switch charges between chips are drastically decreased. Specifically, it will allow considerably sooner and better high quality qubit readout and reset than is feasible in the present day with current expertise, an necessary function for each close to time period functions and fault tolerant capabilities.

SEEQC’s scalable SFQ-based computing structure incorporates digital multiplexing, fixing a crucial enter/output difficulty. The multiplexing circuits sends a number of alerts over a single line, significantly decreasing value and complexity, notably for giant scale quantum programs in knowledge facilities. In distinction, current quantum computer systems require as much as 3 cables per qubit, carrying delicate analog alerts that restrict the flexibility for high-ratio multiplexing in large-scale programs. Thousands and thousands of cables will likely be wanted for large-scale quantum computer systems and people cables carry energy all through the system, and are themselves, a steady supply of warmth that have to be dissipated by all phases of a dilution fridge.

Comparatively, SEEQC has efficiently examined its digital multiplexing expertise which may management an 8 qubit module with simply 2 wires, and variations that management as much as 64 qubits are at the moment in fabrication, vastly decreasing capital prices and simplifying the underlying complexity of a quantum pc.

“As an alternative of making an attempt to scale quantum computing programs primarily based on current prototype designs, we determined to start out from scratch,” mentioned Dr. Oleg Mukhanov, SEEQC’s CTO and co-founder, “creating an entirely new structure primarily based on Single Flux Quantum chips that can allow us to construct the category of quantum pc vital for fault-tolerant quantum computer systems. Solely by incorporating all performance inside high-performance chips will we have the ability to scale vitality environment friendly quantum programs to knowledge heart necessities.”

SEEQC manufactures its digital SFQ chips within the firm’s world-class multilayer superconductive chip foundry and milliKelvin testing heart in Elmsford, N.Y. in live performance with its design and testing groups in London and Naples. The foundry was lately upgraded and produces high-complexity superconductive chips utilizing the corporate’s proprietary multi-layer manufacturing course of, in keeping with producing its digital SFQ chips able to working in a variety of cryogenic temperatures from low milliKelvin to 4 Kelvin. SEEQC’s foundry capabilities far exceed the standard necessities for making single-layer qubits, making it essentially the most complicated industrial chip foundry on the planet for full-stack quantum computing chips. SEEQC additionally manufactures superconductive chips for the DOE, NASA and DOD in addition to quite a few industrial and educational groups.

SEEQC System Crimson: In-Home Quantum Computing Reference System Supplies Benchmarking

The corporate additionally introduced SEEQC System Crimson, a full-stack quantum computing system, constructed as a reference to benchmark the efficiency and capabilities of its new SFQ chips. SEEQC Crimson is the corporate’s first-generation reference class quantum pc system — SEEQC is considered one of solely eight firms to launch a system of this sort and caliber on the planet. The structure of SEEQC Crimson was constructed to imitate present technology superconductor quantum computing programs with typical room temperature analog management and readout enabling the corporate to carry out direct A-B comparisons with its digital SFQ chip-based next-generation quantum pc. With SEEQC Crimson, the corporate has achieved common 2-qubit gate speeds of 39ns and common gate fidelities of 98.4% that are among the many better of publicly accessible quantum programs working over the cloud.

“When in comparison with the common quantum computing programs accessible over the cloud, our system exhibits 4 occasions decrease error charges over aggressive programs,” mentioned Matthew Hutchings, co-founder, and chief product officer at SEEQC. “SEEQC Crimson presents the quickest native two-qubit gates over any system accessible on publicly accessible quantum cloud companies. Whereas different programs concentrate on bigger numbers of qubits, SEEQC’s system is targeted on high quality and velocity. It has achieved gate speeds as much as 10 occasions sooner than rivals, all whereas providing gate fidelities aggressive to essentially the most superior programs accessible on at the moment accessible quantum cloud platforms.”

“To be helpful, a quantum computing {hardware} benchmark metric must be a operate of scale, high quality, and velocity,” mentioned Matt Langione, accomplice at Boston Consulting Group. “It’s not simple to get all three. That’s why, whereas the variety of qubits in programs retains going up yearly, essentially the most vital leads to the sector are sometimes being run on small qubit programs, typically 10 or fewer, which have high-quality qubits and quick gate speeds.”

SEEQC Crimson makes use of the corporate’s proprietary quantum computing platform incorporating cloud portal, software program, and firmware packages. This platform permits customers to entry this reference system to run any common utility or algorithm.

“SEEQC’s mission is to ship scalable, energy-efficient quantum computing for knowledge facilities and our strategy is thru the ​​digital chip-scale integration of key capabilities like readout, management, multiplexing, error correction, and classical knowledge processing. The 2 main expertise developments we’ve introduced in the present day characterize necessary progress on this mission throughout your complete quantum computing {industry},” mentioned John Levy, co-founder, and CEO at SEEQC.

“By way of the steadiness of 2023, we stay up for changing typical room temperature electronics with our digital SFQ chips in our subsequent technology SEEQC quantum computer systems which can even be a significant step in our work in direction of attaining scalable, energy-efficient quantum programs able to supporting chip-based error correction.”

Scalable Utility-Particular Designs Speed up Go to Market

SEEQC plans to deliver the primary commercially-scalable, application-specific quantum computing programs to market. Most current quantum programs usually are not constructed with industry-specific functions in thoughts. SEEQC is working with its accomplice clients to make its system application-specific, reducing the system necessities to resolve crucial issues in industries like industrial chemical compounds, prescription drugs, and supplies science, and to make sure that such programs are able to scaling to the complexity of the issues of enormous enterprises.

SEEQC has already established partnerships with main world industrial firms, together with Merck KGaA, Darmstadt, Germany, and lately introduced its latest partnership with BASF SE, Ludwigshafen, Germany.

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