What is quantum technology?

The pages that follow walk a non-specialist through four ideas central to quantum computing, and the tiers and channels through which it is being utilized today. The aim is not to make you a physicist. It is to make sure you can read the rest of this paper, ask the right questions in a board meeting, and tell a useful pilot from a costly distraction.

A. The Classical Bit and the Qubit

Every computer in use today — your laptop, the server in the data center, the supercomputer at Los Alamos — runs on bits. A bit is a switch: it is either 0 or 1. This information is encoded in long strings of switches, and computation is the rapid flipping of them according to certain parameters.

Quantum technology is fundamentally different. A quantum computer runs on qubits. A qubit, while it is being computed upon, is not confined to 0 or 1. It is a basic unit of information that occupies a state called superposition, in which it behaves as though it were both at once, with a probability assigned to each.

A quantum computer does not work through possibilities one at a time, as a classical computer does. It works through many simultaneously, and at the end of the calculation collapses to an answer.

B. The Mechanics, Briefly

Four concepts are central to the underlying mechanics quantum computing, none of which require a degree in physics to grasp.

Superposition · the in-between state.

A qubit, while a calculation is running, is in a quantum state known as superposition — in layman's terms that means it is undecided. A spinning coin is the cleanest metaphor: lying on a table it is heads or tails. Spinning on its edge, it is neither yet — a blend of both, weighted toward whichever way it is leaning. While it spins, it genuinely is both. Only when it falls is it observed as one. A quantum computer performs its work while the coin (or qubit) is still spinning.

Entanglement · the unbreakable link.

Two qubits can be connected in a way that has no classical equivalent. Measure one and you instantly know what the other will be, regardless of distance. Einstein called this “spooky action at a distance.” Entangled qubits act as a unified system that exponentially increases our ability to carry out complex computational processing at scale.

Interference · the engineering of the answer.

A quantum computation is not a search of possibilities one by one, like a traditional computer. It is a new kind of computation process that relies on qubits having many possibilities at once. Quantum algorithms can utilize constructive and destructive interference such that wrong answers cancel themselves out revealing the right one in a fraction of the time it would take a classical computer to reach the same answer.

Measurement · the collapse of superposition.

Until measured, a qubit — still in superposition — is many things and described by probabilities. The moment it is measured, it becomes one. The superposition collapses into a definite 0 or 1. This is why quantum computers are probabilistic by nature: a well-designed algorithm returns the most likely answer and is run many times to confirm it.

C. How Quantum Computing is Accessed Today

Despite the popular misconception, quantum computing is already here and available for use by anyone with a credit card and an internet connection. The hardware sits in Poughkeepsie, Santa Barbara, College Park, and a half-dozen other places and the user interacts with it through a web browser.

The market has organized itself into three general tiers, distinguished less by the technology than by the user's needs.

The free and exploratory tier. Both IBM and D-Wave offer no-cost access to real quantum hardware. IBM's Open Plan provides ten minutes of monthly runtime on its production processors — enough to learn the tool chain, run textbook algorithms, and confirm that quantum computing is, in fact, a thing that exists. D-Wave's Leap Quantum LaunchPad offers a three-month free trial of its 5,000+ qubit Advantage annealing systems. AWS, Microsoft, and Google offer similar promotional credits through their broader cloud platforms. The serious user can learn the field in a weekend without spending a dollar.

The project tier. For an organization that has identified a specific problem and wants to run real workloads, the dominant model is pay-as-you-go cloud access. Through Amazon Braket, a user can buy time on Rigetti superconducting processors at roughly one-tenth of a cent per shot, or on IonQ's higher-fidelity trapped-ion machines at three to eight cents per shot. Microsoft Azure Quantum offers a similar pay-per-shot menu. IBM's Pay-as-you-go plan bills by the second of actual QPU time. For organizations wanting predictable budgets without a long-term subscription, IBM in 2025 introduced the Flex Plan at a $30,000 entry point. A meaningful pilot can typically be run for between $5,000 and $50,000.

The enterprise tier. For organizations running quantum as a sustained capability, three structures predominate. IBM's Premium Plan delivers subscription-based access to its full fleet of utility-scale processors at six annual price points. D-Wave's Leap enterprise subscriptions follow a similar structure, with the company recently announcing a $10 million, two-year agreement with one Fortune 100 customer. AWS Braket reservations price dedicated QPU time at hourly rates in one-hour increments. At the top of the market, vendors offer on-premises systems — an IBM Quantum System Two installed in a client's data center — at price points reported in industry estimates to run from several million dollars into the tens of millions, generally taken up only by national laboratories, sovereign computing initiatives, and a small number of large enterprises with continuous workloads.

Table 1 · The four channels through which quantum computing is purchased today.

D. What the Board Should Take From This

Three takeaways.

First, experimentation is inexpensive. A meaningful pilot — real hardware and real workloads — can be run for between $5,000 and $50,000, and free tiers from IBM and D-Wave allow initial learning at no cost.

Second, enterprise subscriptions are available for sustained use, albeit the cost is not insignificant. Enterprise subscriptions begin in the high six figures annually, on-premises systems run into the millions, and the talent to operate either is scarce.

Third, access is consolidating around the hyperscaler aggregators (Amazon Braket, Microsoft Azure Quantum), which provide hardware from multiple vendors through a single relationship. For a first commitment, using an aggregator preserves flexibility across competing architectures rather than locking in a single vendor.