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Physical Measurement Laboratory / Quantum Measurement Division

Quantum Optics Group

Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 1 - 4 of 4

Nearly Optimal Time-Independent Reversal of a Spin Chain

NIST Inventors
Alexey Gorshkov
This technology is a time-independent protocol that reverses the order of qubits in a chain (e.g., changing the order $1, 2, 3$ to $3, 2, 1$). It uses a pre-engineered "Hamiltonian"—a specific set of fixed magnetic fields and interactions between neighboring qubits—to naturally evolve the system

Optomechnical Gravimeter

NIST Inventors
Jacob Taylor and Jon R. Pratt
An optomechanical gravimeter includes: a first and second accelerometer; and a spacer member interposed between the first accelerometer and the second accelerometer such that the first accelerometer and the second accelerometer independently include: a basal member; a test mass disposed on the basal
The device reprinted from Z. H. Levine et al., Sensors 25 (17) 5470 (2025).

Metrological Photon Counter and Metrologically Counting Photons at Room Temperature

NIST Inventors
Zachary H. Levine , Neil M. Zimmerman , Alan Migdall and Joshua Bienfang
A gated few-photon pulse enters the device and is converted to electron-hole pairs through photoabsorption. Electric fields lead to the separation of the electron-hole pairs. The electrons are taken to an electronically defined well near a field-effect transistor. (The holes are discarded through a
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