NuCrypt, LLC Demonstrates Complete Quantum Entangled Photon Generation and Measurement System
NuCrypt Introduces a Suite of Compatible Quantum Optical Test and Measurement Equipment.
- (1888PressRelease) December 01, 2010 - Evanston, Illinois - NuCrypt, LLC, a company working to develop products that combine their expertise in photonics, electronics, and quantum effects, has finished a successful live demonstration of their complete suite of entanglement generation and measurement equipment at the "Updating Quantum Cryptography and Communications" (UQCC 2010) conference in Tokyo, Japan October 18-20th. Quantum optics has attracted significant research attention recently due in part to exciting potential applications in cryptography, computation, imaging, and communications. Optics are an ideal manifestation of quantum effects for many applications since photons, the quantum unit of light, can easily be transmitted over long distances in fiber or free-space. Other particles such as electrons are much harder to distribute.
Quantum effects can have strange consequences that are not describable by classical physics, such as the inherent instantaneous connection entangled states maintain even when separated by large distances. The coherent states generated by lasers are at the border between quantum and classical descriptions. New types of optical sources such as entangled photon sources and on-demand single photon sources are necessary to exploit truly quantum effects.
NuCrypt has developed a polarization entangled photon source that is simple to operate. Customers have begun generating novel research results with the source, including a recent post-deadline paper at the 2010 Optical Fiber Communication (OFC) conference in a collaborative effort between AT&T Labs and university researchers in Italy and Israel. "Although customers like the performance and convenience of our entangled source, we found that a lot of time, money, and lab space was being consumed piecing together the auxiliary equipment needed to make measurements. By developing a set of compatible instrument-grade quantum measurement equipment, customers can now enjoy a streamlined system that operates right out-of-the-box", says Gregory Kanter, Vice President of NuCrypt.
NuCrypt's suite of equipment includes an entangled photon source, an electronically controlled polarization analyzer, and a correlated single photon detection system. Operating together they allow entangled photon pairs to be generated, separated, propagated through different lengths of optical fiber, passed through a polarizer of arbitrary polarization, then counted and correlated. Although each photon is un-polarized, their quantum nature readily appears when observing correlations between their arrivals. The so called Bell-inequality measurements can prove the photons are in the quantum regime. Unfortunately, the very appeal of quantum states, that they contain a dense amount of information that often only materializes in a statistical sense, usually makes them difficult to measure. However, multiple measurements in different orientations or "bases" can reveal their true nature. The NuCrypt system makes these types of measurements simple.
Dr. Masahide Sasaki, chair of the conference organizing committee and group leader of the Quantum Group of the National Institute of Information and Communications (NICT) in Japan observed the demonstration. "Currently research and development in quantum communications involves a great deal of investment of time and money just to build the basic tools." He continued, "The availability of a commercialized turn-key entanglement generation and measurement system should allow more research groups to participate, thereby benefitting the field as a whole."
The live demonstration at UQCC was accompanied by a poster-presentation at the conference detailing the construction and features of the patent-pending fiber-based entangled photon source, including its unique built-in alignment signals that allow measurements to be made quickly and easily.
About the company
NuCrypt is a privately held company founded in 2003. With core technology expertise in photonics, quantum effects, fiber optics, communications, and high speed electronics, they develop test equipment and applications in advanced photonics including quantum optics. For additional information, please see www.nucrypt.net.
For more information please contact:
Gregory Kanter
Vice President, NuCrypt, LLC
kanterg ( @ ) nucrypt dot net
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