13 May 2024
by Michael J Biercuk

Building the software-defined quantum data center 

Guest blog from Michael J Biercuk at Q-CTRL as part of our #UnleashInnovation week 2024.

Quantum Computing is here and it is more accessible than you might think. 

Taking action to adopt quantum computing now is becoming more important due to the rapidly approaching horizon of “quantum advantage'' - when it’s economically or technologically preferred to choose a quantum computing solution over the best classical IT alternative for an important computational problem. Forbes predicts that IBM will hit quantum advantage in 2026, and Quantinuum boldly pronounced Quantum Advantage could be achieved within 24 months at the IEEE Quantum Week 2022 event. 

Once quantum advantage is achieved, the Boston Consulting Group estimates early adopters will capture the lion’s share of the benefits - up to 90% - and will gain long-term strategic advantages that are difficult to overcome. 

Hence, an enterprise leader might wonder ‘How will this new technology deliver value for my organization in a way that is accessible to us?’ 

So, how can quantum computing be best integrated into the enterprise workflow? 

The rise of quantum infrastructure software 

One insight into these questions lies in the emergence of the new segment of quantum infrastructure software, focused on two things: making quantum computers usable for high-value problems (utility), and improving quantum computer output to accelerate the time to quantum advantage (performance). 

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Quantum infrastructure software’s function is to transform “bare-metal” quantum processors into useful computational tools compatible with enterprise cloud architectures. It is distinct from “traditional” quantum software focused on developer tools for crafting and deploying algorithms and applications for end-users.  

Quantum infrastructure software also differs from conventional or “classical” infrastructure software which usually focuses exclusively on utility. In classical systems, performance is typically delivered by algorithm design or hardware engineering (for instance, through more efficient architecture or clock speed). Quantum processors, unlike classical processors, are still relatively unstable due to errors, introducing a new limiting challenge which is simply not present with classical computing hardware. 

By analogy with classical infrastructure software such as VMWare’s creations, the first class of quantum infrastructure software virtualizes quantum computer hardware, breaking the link between base hardware characteristics and actual quantum computational power. Doing so expands the convenience, cost-effectiveness, and cross-compatibility of hardware to augment utility. As mentioned above, the first quantum infrastructure software tools target going beyond utility to also improve algorithmic performance relative to execution on the bare hardware - addressing the Achilles Heel of the industry. 

Building the enterprise software-defined quantum data center 

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The current diversity of quantum hardware platforms, performance levels, and quantum instruction-sets is a substantial impediment to integrating quantum computers into enterprise workflows; the underlying differences in hardware typically mandate vendor-specific solutions at nearly all levels of abstraction. The current implementation of quantum computing looks like the obsolete hardware-defined data center in classical computing - a paradigm that has been supplanted by the efficient and flexible software-defined data center. 

The process of quantum-hardware virtualization enabled by certain forms of quantum infrastructure software - from individual devices on chips through to entire quantum processors - is key to the realization of a novel Software-Defined Quantum Data Center (SDQDC). This new architectural paradigm works with nearly any quantum computer architecture, enabling full support for hybrid and multi-quantum-processor compute environments.    

The SDQDC offers CIOs a choice of hardware and software tools delivering maximum utility and performance for their business needs. This approach is familiar to any CIO whose team is built on major PaaS offerings such as Amazon Web Services, Microsoft Azure or Google Cloud.

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Such a software-defined architecture for enterprise quantum computing reduces complexity for developers, lowers barriers to quantum computing adoption, and delivers faster and better business outcomes with higher ROI. 

Perhaps most importantly, the SDQDC, powered by quantum infrastructure software, massively increases the potential customer base beyond PhD-level quantum experts to IT generalists by abstracting the underlying technology while preserving and improving performance. With improved utility at the generalist level, quantum infrastructure software will enable the SDQDC to truly benefit from recent improvements in classical IT (see Table 1). 

Quantum infrastructure software delivers these capabilities invisibly and automatically with a heavy reliance on custom AI tools, enabling end-users to focus on their core task of application development, dramatically accelerating progress, saving team costs, and delivering improved technical outcomes.  

Beyond machine learning, quantum infrastructure software also benefits from several other key IT trends that are familiar to the CIO organization. Using these proven IT techniques allows quantum infrastructure software to be easily integrated with nearly all QPU modalities. 

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Opening new opportunities to deliver for enterprise 

As notions of 100% vertical integration in quantum computing businesses have fallen away, the delivery of cloud-accessible quantum computer hardware IaaS has enabled specialist providers to develop and test advanced technology without the need to also develop the underlying hardware. This segmentation enables specialization that can deliver capabilities that expand the impact of quantum computing among enterprise users. New vendors are now contributing major value-add through just such expertise and focus. 

Enterprise IT experts interested in the quantum opportunity are already discovering the value delivered by quantum infrastructure software. Former Citrix Systems CTO and Head of Global Technology Martin Duursma said, 

"The software-defined quantum data center concept has merged the best of classical IT methodology with the deeply specialized expertise in quantum engineering needed to improve quantum processor performance for enterprise applications. It's one concept that IT Infrastructure leaders should pay close attention to as they build their technology roadmaps." 

There are currently only very few vendors in the nascent quantum infrastructure software segment, but growth is expected to intensify across the various tasks to be undertaken in making quantum computing relevant for the enterprise CIO. The SDQDC concept opens an opportunity for new businesses able to deliver greater value to quantum computing end-users, and accelerate enterprise value capture from the field overall. Quantum networking and quantum security are two additional emerging areas where we expect new quantum infrastructure software businesses to appear, but the future is wide open.  


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Authors

Michael J Biercuk

CEO, Founder, Q-CTRL

Michael J. Biercuk is the CEO and Founder of Q-CTRL, and Aravind Ratnam is Chief Strategy Officer.  Q-CTRL is a quantum technology company focused on error-suppressing quantum infrastructure software to make quantum useful.  The company provides infrastructure software tools to quantum computing end users, and also supports end-user empowerment via quantum education software