Quantum Computing and Sensing
APL’s work in quantum computing goes back decades. In the late 1980s, the Laboratory began investigating quantum entanglement, a topic at the heart of the disparity between classical and quantum physics. APL researchers conducted some of the initial demonstrations of quantum key distribution in the mid-1990s, and in 1996 established a fully operational system for quantum cryptography based on the transmission of single photons in free space under daylight conditions.
Expertise in Action
Johns Hopkins APL Earns Federal Quantum Computing Award to Propel Science Discoveries → Oct 7, 2024
A research team led by APL quantum information scientist Gregory Quiroz and partners at five institutions has earned a competitive quantum computing award from the Department of Energy to engineer potentially game-changing open-source software systems to propel scientific discoveries. The award builds on the team’s previous success designing software that combats errors hampering the performance of today’s quantum computers.
Detecting Hidden Signals → Mar 25, 2021
In a new paper, a Johns Hopkins APL research team explained how they applied two theoretical tools of quantum information to extremely sensitive signal detection tasks. Their research suggests that honing this sensitivity to detect signals while rejecting background noise will enable the use of quantum detectors even when this surrounding noise is strong relative to the signal of interest.
Training a Dragon: Protecting Quantum Algorithms on ‘Noisy’ Computers → Sep 22, 2020
For years, APL has applied its expertise to protecting quantum computers from a challenging issue called decoherence, errors that arise when the building blocks of quantum computing lose information to their environment. Researchers are now testing strategies for combating these errors to improve the performance of quantum algorithms on noisy intermediate-scale quantum computers.
Johns Hopkins APL Joins New Alliance to Accelerate Maryland’s Leadership in Quantum Science → Feb 3, 2020
The Maryland Quantum Alliance will drive quantum science discovery and innovation, develop pioneering quantum technologies and train the quantum workforce of tomorrow for Maryland, the region and the nation.
Cool Tool Could Enable Quantum Computers to Tackle More Complex Applications → Apr 24, 2019
Scientists at the Johns Hopkins University Applied Physics Laboratory have developed a new device for controlling and measuring qubits inside the cooler environment; the new device can be manipulated at lower frequency, without the need for microwave lines, thus reducing cost and complexity.