Category: Quantum Technologies

Introduction In this post, we explore the mathematical foundations and practical implementations of quantum measurement techniques using Amazon Braket. We examine this subject through multiple perspectives: action of gates as basis transformation, projection as inner product, projector formalism, and observable formalism. A key insight that we’ll develop is understanding basis transformations as tools for converting […]

Quantum Key Distribution (QKD) is a method of exchanging encryption keys that complements traditional and post-quantum cryptography by offering a different kind of security guarantee: the ability to reveal whether a key exchange has been observed or disrupted. This blog explores BB84[i] —the first and most well-known QKD protocol—to illustrate how quantum principles can be […]

Quantum computers promise to revolutionize computation for problems across many industrial sectors, though understanding exactly how useful this technology will be remains an open question. In this blog post, the team from Strangeworks, an AWS Partner, evaluates different implementations of the Quantum Approximate Optimization Algorithm (QAOA) against an aircraft cargo loading problem posed by Airbus […]

Simulating quantum systems using classical computers remains a computational challenge. In fact, the resources required for these simulations scale exponentially with the size of the system being simulated. This fact is at the core of the motivation to build a quantum computer. Quantum computers have the potential to surpass even the most powerful supercomputers when […]

Today, we’re excited to announce the launch of local device emulator on Amazon Braket. This feature enables developers to emulate their verbatim circuits based on device calibration data. Local device emulation helps accelerate the development cycle by providing early feedback on circuit compatibility and expected behavior in the presence of noise. In this post, we […]

When running quantum computing workloads with multiple circuits, such as simulating molecular systems, building classical shadows, and training quantum machine learning models, submitting each circuit individually creates substantial delays between executions due to task setup and processing time. This overhead adds hours to the total run time of the experiments and makes the results sensitive […]

Available today, quantum computing developers, educators, and enthusiasts can learn the foundations of quantum computing on Amazon Web Services (AWS) with the Amazon Braket Digital Learning Plan and earn their own Digital badge – at no additional cost. You earn the badge after completing a series of learning courses and scoring at least 80% on an […]

Amazon Braket enables customers to design and run quantum algorithms on a broad selection of quantum hardware through a unified interface. Today, we expand the hardware available on Braket with the general availability of IQM’s latest quantum processing unit (QPU). The device, named Emerald, is a 54-qubit superconducting QPU providing customers higher fidelity gates and […]

Numerical simulations of complex fluid dynamics, electromagnetics and thermomechanical problems are crucial in the automotive and aerospace industries for designing and optimizing components like airplane wings, yet modeling continuum physics on high-resolution grids pushes classical computing to its limits. Quantum computing offers a potential path to overcome these barriers by encoding large simulation grids with […]

Today, we are introducing DeviceLayout.jl, a software package for computer-aided design (CAD) of quantum integrated circuits. At the AWS Center for Quantum Computing (CQC), we use DeviceLayout.jl to design superconducting quantum devices on our path to building a fault-tolerant quantum computer—devices we’ve used for experiments like “Hardware-efficient error correction using concatenated bosonic qubits” (our “Ocelot” […]