Navigation Links
Combing a qubit
Date:4/5/2010

Physicists at the University of Maryland have found a way to turn a precision measurement device into a versatile tool for manipulating quantum bits (qubits). The researchers adapted a device known as an optical frequency comb in their novel approach to performing the sorts of quantum data operations that will be vital for future quantum computers. The research appears in this week's issue of Physical Review Letters and is described in a Viewpoint article by Boris Blinov (University of Washington) in the current edition of APS Physics (physics.aps.org).

Conventional methods for manipulating qubits typically require pairs of lasers with closely coordinated outputs and high power levels. Optical frequency combs produce a rainbow of light that's made up of discrete, precisely defined frequencies. Because the light originates from a single source, rather than two separate sources, the output frequencies in an optical comb are automatically coherent. As a result, two frequencies from a single optical comb can take the place of a pair of lasers in manipulating a qubit.

Despite the convenience the optical frequency comb offers in coherence, tailoring the output for specific applications generally involves physically adjusting the components that produce a comb. The new research demonstrates a technique that solves the problem by effectively using the "teeth" (individual frequencies in a comb output) of one comb to produce coherent pairs of teeth in another comb. This allows the researchers to electronically shift frequencies to the specific values they need, rather than being constrained by the fixed choices that a single comb provides. The flexibility of the technique should be applicable to many types of qubits. In addition, closely related techniques are proving useful for a host of other applications that involve the manipulation and control of atoms with light.


'/>"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
Source:Eurekalert  

Page: 1

Related biology technology :

1. Memoirs of a qubit: Hybrid memory solves key problem for quantum computing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Combing a qubit
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... operations for Amgen, will join the faculty of the University of North ... adjunct professor of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on ...
(Date:6/24/2016)... 24, 2016 Epic Sciences unveiled a ... susceptible to PARP inhibitors by targeting homologous recombination ... The new test has already been incorporated into ... cancer types. Over 230 clinical trials ... pathways, including PARP, ATM, ATR, DNA-PK and WEE-1. ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, ... launch of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which ... to add Target to its list of well-respected retailers. This list includes such ...
(Date:6/23/2016)... June 23, 2016 Houston Methodist Willowbrook ... Cy-Fair Sports Association to serve as their official ... Houston Methodist Willowbrook will provide sponsorship support, athletic ... with association coaches, volunteers, athletes and families. ... Cy-Fair Sports Association and to bring Houston Methodist ...
Breaking Biology Technology:
(Date:5/16/2016)... --  EyeLock LLC , a market leader of iris-based ... IoT Center of Excellence in Austin, Texas ... embedded iris biometric applications. EyeLock,s iris authentication ... with unmatched biometric accuracy, making it the most proven ... platform uses video technology to deliver a fast and ...
(Date:5/9/2016)... -- Elevay is currently known as the ... high net worth professionals seeking travel for work   ... there is still no substitute for a face-to-face meeting. ... deal with a firm handshake. This is why wealthy ... citizenship via investment programs like those offered by the ...
(Date:4/28/2016)... SAN FRANCISCO and BANGALORE, India ... part of EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... service provider, today announced a global partnership that ... convenient way to use mobile banking and payment services. ... Mobility is a key innovation area for financial services, but ...
Breaking Biology News(10 mins):