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Office of the Director

Projects/Programs

Displaying 1226 - 1250 of 1614
Quantum Biophotonics

Quantum Biophotonics

Ongoing
Applying recent advances in single-photon detection along with novel data processing methods developed in the quantum optics community opens fundamentally new opportunities for faint-light metrology down to that related to just a single molecule – i.e. precisely the conditions for bio-optical...
Boulder Cryogenic Quantum Testbed

Quantum Characterization

Ongoing
The BCQT serves as a resource to academic and industry quantum research groups for measurement of superconducting microwave resonators in a well-characterized cryogenic environment using traceable, open-source methods developed in broad consultation with companies, universities, and NIST. This...

Quantum Communications and Networks

Ongoing
Positions - accepting applications: We are accepting applications for Postdoc and/or Guest Researcher experimental optics positions in the Quantum Communications and Networking Project. US Citizens are strongly recommended to apply. Candidates should have expertise in experimental optics and be...
Quantum Computations in Optical Lattices

Quantum Computation and Simulation with Neutral Atoms

Ongoing
Advances in quantum information have the potential to significantly improve sensor technology, complete computational tasks unattainable by classical means, provide understanding of complex many-body systems, and yield new insight regarding the nature of quantum physics. At NIST and around the world...
This image shows a planar rf ion trap designed for experiments with magnetically-driven quantum gates.

Quantum Computing with Trapped Ions

Ongoing
Quantum Computing with Trapped Ions We pursue proof-of-concept experiments in quantum information processing and quantum control with trapped ions. In addition to pushing current limits on traditional quantum gate-based architectures for quantum computing we explore alternative approaches to...
Example of a star-mesh device design

Quantum Conductance

Ongoing
The quantum Hall effect (QHE), and devices that exhibit it, will continue to serve as the foundation of the ohm while also expanding its territory into other SI derived units. The world adopted the quantum SI in 2019, and it remains essential that the global metrology community pushes forth and...
AMO physics

Quantum Many-Body Physics, Quantum Optics, and Quantum Information

Ongoing
Differences between typical AMO and condensed matter systems bring with them exciting new physics. In contrast to condensed matter systems, AMO systems are often studied far out of equilibrium, are evolving in time, and are subject to dissipation. As a result, many-body AMO systems open a whole new...
chip experiment

Quantum matter from atomic gases

Ongoing
Ultracold atoms are a very different sort of system than conventional materials, composed of a few hundred to a few hundred million atoms, with densities ranging from 10 12 cm -3 to 10 15 cm -3, and at temperatures from below 1 nK to a couple uK. These atomic systems are unique in the simplicity of...
ion trap with integrated fiber Fabry-Perot cavity

Quantum Networking with Trapped Ions in Optical Cavities

Ongoing
The goal of a quantum network is to establish entanglement as a resource between distant locations. Shared entanglement over long distances may enable distributed quantum computing, quantum-enhanced long-baseline interferometry, the transmission of complex quantum states, or a variety of other...

Quantum Nonlinear Optics for Metrology and Networking

Completed
We have generated "twin beams" of light using four-wave mixing (4WM) that are correlated at a level better than can be displayed by classical radiators. One particularly useful feature of the 4WM technique is that the light can easily be made in multiple spatial modes. That is, images with quantum...

Quantum Optical Networks

Ongoing
The program's technical research areas are: Architecture research for Quantum Optical Networks and integration with classical networks Management (label, identify, track) and Control Plane (signal and route optical paths) Software Stacks Performance monitoring for end-to-end Quality of Entanglement...
FLOC

Quantum Pascal: Fixed Length Optical Cavity (FLOC) Pressure Standards

Ongoing
This project enables a quantum-based, SI-traceable method for realizing the pascal (Pa) while improving accuracy and allowing the replacement of existing mercury manometer pressure standards. The Fixed Length Optical Cavity (FLOC) pressure standard is a laser-based, SI-traceable primary pressure...

Quantum Physics Theory

Ongoing
The scope of the work ranges from calculations of QED effects in atoms to detailed studies of photon wave functions.
equipment

Quantum Radiometry

Ongoing
For quantum applications, it is important to generate quantum states of light and detect them with extremely high efficiency. This project explores the metrology challenges associated with precision measurement of single photon sources and detectors. The classical photonic radiometry techniques used...

Quantum Simulation and Sensing with Trapped Ion Crystals

Ongoing
Entanglement between individual quantum objects exponentially increases the complexity of quantum many-body systems, so systems with more than 30-40 quantum bits cannot be fully studied using conventional techniques and computers. To make progress at this frontier of physics, we are pursuing Feynman...
Open dilution refrigerator cryostat

Quantum Transducer Characterization and Protocols

Ongoing
Transducer devices which exchange quantum states between GHz-microwave and THz-optical frequencies are a critical element necessary to optically network superconducting quantum computers to allow their computational power to scale beyond the confines of a single cryostat. To preserve quantum states...
Monolithic Drumhead Membrane Transducer Illustration

Quantum Transducer Design and Fabrication

Ongoing
Quantum transducers are devices which translate quantum states in frequency, whether between different optical frequencies or between disparate microwave and optical frequencies. Microwave-to-optical transducers are the critical technology necessary to optically network superconducting quantum...
Measuring the quantum value of resistance

Quantum Transport Measurements

Ongoing
It is necessary to isolate, control, and understand the fundamental physics of exotic states of matter to create nanoengineered systems with the requisite quantum properties for quantum information systems and advanced computing applications. We develop measurement capabilities and design test...
10 V programmable Josephson voltage standard (PJVS) and (right) PJVS cryopackaged chip, which are disseminated by the NIST standard reference instrument (SRI) program.

Quantum Voltage Project

Ongoing
Researchers in the Quantum Voltage Project develop and disseminate highly accurate instruments that exploit the quantum mechanical properties of superconductive devices known as Josephson junctions (JJs), as well as measurement techniques and best-practices for using these instruments. When a JJ is...
modulation

Quantum Waveform Metrology

Ongoing
The 2019 redefinition of the SI was motivated in part by the success of quantum electrical standards, such as those based on the Josephson and quantum Hall effects. Quantum standards enable the direct realization of physical quantities that are traceable to fundamental constants, invariant with...
dosimeters

Radiation Protection: Support of the Navy Dosimetry Program

Ongoing
Since 2010, the U.S. Navy has adopted a personal dosimeter designated as the model DT-702/PD, which was demonstrated to have an improved accuracy, energy discrimination and a lower detection limit than prior Navy designated models such as the DT-5XX/PD and DT-6XX/PD series. This dosimeter is used to...
Thermoluminescent Dosimeter (TLD) Card

Radiation Sensitivity of Thermoluminescent Dosimeter Sensors

Completed
The radiation sensitivity of a Thermoluminescent Dosimeter (TLD) is defined as dosimeter light output per dose unit. TLD light output depends not only on the sensitivity of the TLD elements (Fig.1) but also on the transparency of the Teflon® used for their encapsulation. The effect of encapsulation...
radiation thermometry

Radiation Thermometry

Ongoing
Radiation thermometers are calibrated using a range of variable-temperature blackbodies. For heatpipe blackbodies and fluid-stirred blackbodies, the temperatures of these blackbodies are determined using platinum resistance thermometers. These blackbodies can also be assigned temperatures using...

Radiative Decay of the Neutron

Ongoing
When a neutron decays by its radiative decay (RDK) mode, it produces a photon with a energy spectrum predicted by Quantum Electrodynamics. These RDK photons deposit energy in scintillators which produce voltage pulses in Avalanche Photo Diodes. We are developing nonlinear calibration models to...
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