The group applies expertise in mathematical subdisciplines such as combinatorics, graph theory, network science, operations research, optimization, discrete nonlinear dynamics, computational geometry, quantum mechanics, and information theory. Researchers apply their knowledge and skills in areas such as the fundamental models of physics, chemistry, biology, and information systems, complex systems analysis, pattern recognition, and quantum computing and communications. In collaboration with NIST and outside scientists, the group develops, analyzes, and applies related mathematical methods and tools for critical problems of measurement science at NIST, and develops mathematical foundations for the measurement science of information systems.

News and Updates

Researchers at the National Institute of Standards and Technology (NIST) have developed a method for generating numbers guaranteed to be random by quantum

Future communications networks that are less vulnerable to hacking could be closer to reality with an invention that measures the properties of single-photon

In this video, The Computational Power of the Universe, National Institute of Standards and Technology physicist Stephen Jordan asks, “What if we consider

How fast will a quantum computer be able to calculate? While fully functional versions of these long-sought technological marvels have yet to be built, one

Projects and Programs

The Quantum Communication and Networks Project develops quantum devices and studies them for use in quantum communications and networking applications. Our goal

Nonlinear optics offer ways to control and engineer the interconnects in a quantum network. In a hybrid quantum network where the quantum nodes operate at

Publications

Author(s)

Yanbao Zhang, Hsin-Pin Lo,

, Takuya Ikuta, Toshimori Honjo, Hiroki Takesue, William MunroQuantum random numbers distinguish themselves from others by their intrinsic unpredictability arising from the principles of quantum mechanics. As such they are

Author(s)

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We present our measurements of the detection efficiency of free-space and fiber-coupled single- photon detectors at wavelengths near 851 nm and 1533.6 nm. We

Author(s)

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We outline a proposal to realize Electromagnetically Induced Transparency (EIT) with the potential to store Terahertz (THz) optical pulses in Cesium atoms. Such

Author(s)

Entangled photons produced by parametric down-conversion effectively have two down-conversion paths. Ideally, amplitudes of the two paths are matched.We show

Software

This software is a set of NetworkX additions for the creation of graphs to model networks.Graphicality Testing -- This is a set of routines for testing if a

Awards

For the first demonstration of quantum gate teleportation with trapped ions, showcasing a crucial step toward large-scale quantum computation.

For being the first in nearly 50 years of attempts to achieve a loophole-free test of Bell’s theorem, confirming the predictions of quantum mechanics. Nearly 20 NIST employees and associates from PML and ITL contributed to this achievement.