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    <pubDate>Thu, 25 Oct 2007 12:32:25 +0200</pubDate>
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    <item>
      <title>[Quantum Information Technologies] QIPC Strategic Report Appendix on QITs</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,43,43#msg-43</link>
      <author>qurope</author>
      <description><![CDATA[Please find attached to the end of this post the QIPC Strategic Report on Quantum Information Technologies.

As you all know the QIPC Strategic Report is a living document and therefore we can continue the discussion on this Forum to improve the current version of the Appendix.]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,43,43#msg-43</guid>
      <pubDate>Thu, 25 Oct 2007 12:32:25 +0200</pubDate>
    </item>
    <item>
      <title>[Input for 2009 QIPC call] Input for the December 6th meeting</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?7,42,42#msg-42</link>
      <author>qurope</author>
      <description><![CDATA[As announced by the European Officer David Guedj at the FET session of the QIPC 2007 Barcelona conference, on December 6th there will be a meeting in Brussels for discussing how the 2009 QIPC FET Proactive Call should look like.

QUROPE WP2 has already elaborated some guidelines that we post below (you can download the corresponding pdf file either as an attachement at the end of this post, or from the home page of the QUROPE website.)

We are sure that you all have ideas on how we can improve these guidelines, and we would appreciate if you share those ideas with us in this Forum.

-----------------------------

STRATEGIC AREA: QUANTUM INFORMATION SCIENCES AND TECHNOLOGIES 
Input for the 2009-2010 Work Programme preparation 
Proposal for the 4-th call 
 
MOTIVATION
 
Quantum Information Processing and Communication (QIPC) holds the promise of immense computing power beyond the capabilities of any classical computer, it guarantees absolutely secure communication, and it is directly linked to  emerging quantum technologies, e.g., quantum based sensors. It is based on the control and manipulation of quantum entanglement and superposition for the purpose of encoding, processing, transmitting and decoding information. 

CHALLENGES 

In the areas of quantum computing and quantum communication the challenges for the coming years, as identified in the European QIPC Strategic Report, are: 

Quantum Computing: 

• Develop devices realizing quantum algorithms with up to 10 qubits, both with experimentally available  physical systems and with new theoretical proposals with a focus on scalability, coherence, and applicability of  error correction; 
• Demonstrate fault tolerant computing and error correction on small-scale systems, either by improving technology or by developing new fault-tolerant architectures beyond the network model of quantum computation; 
• Devise and implement distributed quantum algorithms to be performed on networked elementary quantum  processors; 
• Characterize different classes of entangled states up to 10 qubits, both theoretically and experimentally in  terms of efficient production and detection; 
• Demonstrate quantum simulation of systems that cannot be simulated classically, by engineering the  dynamics of controllable quantum devices to mimic properties of complex quantum systems. 
• Develop new computational approaches to be implemented on classical computers for calculating many-body  systems and modeling novel material properties based on quantum entangled states approach 

Quantum Communication: 

• Interface photons with matter, and, more generally, interface qubit ‘memories’ and carriers of quantum information; 
• Extend the range of quantum communications by building a quantum repeater with two nodes; 
• Construct a secure quantum key distribution network composed of quantum links connecting multiple distant  nodes. 


All of these goals are to be considered both experimental and theoretical: Theory, aside from finding and investigating  fundamentally new algorithms and protocols for QIPC, must in fact guide and support experimental developments,  covering a wide range of physical systems and technologies.  

In addition, as many branches of QIPC have gone past the proof-of-principle phase, further challenge presently faced is  that of bringing QIPC one step closer to commercial exploitation. This implies integration of the scientific base in order to  encompass the full range of quantum information from conception to development of devices, from computation and  communication to other technological applications of quantum entanglement and superposition; it also entails identifying  new directions and research groups that can bring in fresh ideas for yet unthought-of technologies, that is, 

Quantum Information Technologies (QIT): 

• either technologies that represent genuine applications of QIPC (e.g., quantum metrology, quantum  sensing, quantum imaging, quantum random number generators), 
• or technologies instrumental in developing QIPC devices (e.g., single- and entangled-photon sources and  detectors, chips for ion and atom traps). 

EXPECTED IMPACT 

These efforts will eventually lead to a pool of reliable technologies for the different components of a quantum architecture, much like it happens now for classical computers where magnetic, optical and electric bits are used for  storage, transmission and processing of information, respectively. Furthermore, Quantum Information research will lead  to a deeper and broader understanding of the fundamental laws of the quantum world, the causality principle, the nature  of information, information theory and computer science. New computational methods born within the community will  allow solving problems ranging from many body physics to quantum field theory, while QIPC enabled quantum  simulations will provide the possibility to model new materials in a superior way. Entangled state engineering will push  the metrology and sensing towards and beyond quantum limits of sensitivity. Finally, the emerging domain of Quantum  Information Technologies will bring QIPC one step closer to commercial exploitation. 

DISCIPLINES INVOLVED 

QIPC is multidisciplinary by nature, with scientists coming from theoretical and experimental physics, computer science,  mathematics, material science and engineering. 

STAKEHOLDERS 

Universities, Government labs, IT industry in general, in particular the following companies: JENOPTIK  AG, STMicroelctronics, MagiQ Technologies Inc., Infineon Technologies, Philips Research, GCHQ, Siemens AG, IBM Zurich Research Laboratory, D-Wave Systems Inc., Bell Labs, Lucent Technologies, HP Labs, NEC, Senetas, id Quantique SA, Crescendo Ventures, DANTE, FTTH Council Europe, Meriton Networks, Ovum RHK  - Network Infrastructure, JDSU Optical Communications groups, Toshiba Research Europe Ltd, ARC Seibersdorf, Elsag, Smart Quantum, Pirelli]]></description>
      <category>Input for 2009 QIPC call</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?7,42,42#msg-42</guid>
      <pubDate>Thu, 25 Oct 2007 11:55:34 +0200</pubDate>
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    <item>
      <title>[Quantum Information Technologies] Re: Towards a quantum information technology industry</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,15,17#msg-17</link>
      <author>qurope</author>
      <description><![CDATA[Interesting reading.

In fact after reading Tim's paper one would be tempted to say that quantum games should be considered part of the QITs park. 
In particular I think they are absolutely right in saying that 

&quot;It can be argued that quantum games, auctions and the like come under a very general heading of quantumcommunication. However, whereas simple quantumkey exchange involves just two parties and can be done without any entanglement, it could be possible that quantum communications will have to go to more than two parties and/or to scenarios which necessarily require entanglement in order to start a QIT industry. It might be that only by addressing applications which have goals (and thus protocols) more complex than key exchange can QIT offer solutions that conventional IT cannot, or sufficient advantage to generate a market.&quot;

I would love to hear what the quantum games community has to say on this. In particular I would like to know the answer to the following questions:

1) Has someone put forward a 'truly' quantum game, i.e. one that cannot be accounted for within classical game theory, simply by appealing to a more complicated game structure?

2) What is missinng in the list below which would tell what quantum games buy us? What would you remove?

    * Efficiency improvement (less information needs to be exchanged in order to 
      play the quantized versions of classical games.)
    * Payoffs higher than the classical attainable ones
    * Strong connection between evolutionary games and games derived from the 
      dynamics of physical systems
    * ...]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,15,17#msg-17</guid>
      <pubDate>Tue, 03 Apr 2007 11:41:02 +0200</pubDate>
    </item>
    <item>
      <title>[Quantum Information Technologies] Mechanical Quantum Systems - a new toolbox for QIPC</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,16,16#msg-16</link>
      <author>Markus Aspelmeyer</author>
      <description><![CDATA[I would like to add to the list of examples of quantum technologies the emerging field of quantum-controlled micro- and nanomechanical systems. Depending on their field of application they can be regarded as quantum enabled technologies, e.g. in their use as quantum-limited sensing device, or as quantum enabling technology, e.g. when providing an interaction relevant for quantum gates. The current state of the field seems to indicate that proof-of-concepts demonstrations of mechanical quantum states will be available within the next years. A definition could include statements of the following kind:

Coherent control of mechanical quantum states is an emerging technology that offers new opportunities and applications for quantum information processing. The main idea is to bring back mechanics as an essential tool for information processing, in particular by using micro- and nanomechanical systems. With respect to the QIPC roadmap this will require the demonstration of a series of essential milestones such as creating quantum entanglement, encoding quantum information and communicating quantum information coherently. A particularly interesting feature of mechanical systems is that they provide a solid state architecture with the ability to couple to various physical systems such as optical qubits or charge qubits, which is essential for integrated architectures.
Potential impact ranges from quantum-limited metrological applications and entanglement-enhanced sensors to new quantum gate architectures and novel decoherence tests exploring the quantum-to-classical transition. Mechanical quantum systems therefore cover the full spectrum of quantum enabled and quantum enabling technologies.]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,16,16#msg-16</guid>
      <pubDate>Tue, 27 Mar 2007 18:19:38 +0200</pubDate>
    </item>
    <item>
      <title>[Quantum Information Technologies] Towards a quantum information technology industry</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,15,15#msg-15</link>
      <author>tim.spiller@hp.com</author>
      <description><![CDATA[This paper may help debate.

Towards a quantum information technology industry*

T P Spiller et al 2006 J. Phys.: Condens. Matter 18 V1-V10   doi:10.1088/0953-8984/18/1/N01

T P Spiller and W J Munro
Hewlett-Packard Laboratories, Filton Road, Stoke Gifford, Bristol BS34 8QZ, UK
E-mail: tim.spiller@hp.com and bill.munro@hp.com

Abstract. The research fields of quantum information processing and communication are now well established, although still growing and developing. It was realized early on that there is significant potential for new technologies and applications, leading to the vision of a whole new quantum information technology industry. The vision is not yet reality, and there are many open questions with regard to how it might become so. This article raises some of these questions, and gives a viewpoint on how we might proceed, from where we are today towards a quantum information technology industry in the future.

The paper can be downloaded following this link: http://www.iop.org/EJ/abstract/0953-8984/18/1/N01/]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,15,15#msg-15</guid>
      <pubDate>Thu, 22 Mar 2007 15:47:06 +0100</pubDate>
    </item>
    <item>
      <title>[Quantum Information Technologies] Re: Quantum feedback as a quantum enabling technology</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,14#msg-14</link>
      <author>Eugene Polzik</author>
      <description><![CDATA[I certainly agree that quantum feedback is a very important tool in QIPC. In addition to what is mentioned in the note by Dr. Vitali, important examples of quantum feedback include implementation of quantum memory for light (Nature 2004, Julsgaard et al) and quantum teleportation between light and atoms (Nature 2006, Sherson et al). Both experiments performed with atomic ensembles use quantum feedback by feeding the measurement result on light onto atoms. The measurement is quantum noise limited. In more general terms, any quantum teleportation protocol involves quantum feedback. Since quantum teleportation is one of the most important paradigms in QIPC, quantum feedback is very relevant to the field. Another application of quantum feedback is generation of atomic spin squeezed states (Kuzmich et al, PRL 1999 and Mabuchi et al, Science 2002) and entangled atomic ensembles (Julsgaard et al 2001 - 2003).
It may indeed be useful to directly mention quantum feedback in connection with various QIPC protocols. Please provide more specific examples.]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,14#msg-14</guid>
      <pubDate>Wed, 21 Mar 2007 10:13:28 +0100</pubDate>
    </item>
    <item>
      <title>[Quantum Information Technologies] Quantum feedback as a quantum enabling technology</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,13#msg-13</link>
      <author>David Vitali</author>
      <description><![CDATA[I try to help to refine the definition of QIT by providing an example of quantum enabling technology, which is quantum feedback. I think it is more a quantum enabling rather than enabled technology because entanglement is not strictly needed in it. However quantum feedback is a fundamental tool for quantum information processing which is not yet included in the roadmap. I try to define what quantum feedback is and how is related to QIPC. 

Feedback control is the process of monitoring a physical system, and using this information in real time to apply forces to the system so as to control its dynamics. If the sensitivity of measurements performed to monitor the system is far from the limits set by quantum mechanics and the uncertainty principle, one has classical feedback schemes, which are nowadays used in almost any technological device in order to stabilize it against the effects of noise. These classical schemes assume complete measurability and controllability of the system under study. However, quantum-enabled technology requires performing measurements at the quantum limits, where the quantum back-action due to the presence of non-commuting (and therefore non-simultaneously measurable) observables has important effects. As a consequence quantum feedback control clearly departs from its well developed classical analogue and in fact, it has been investigated only very recently, when quantum limited measurements started to be performed, especially in atomic and optical physics. Quantum feedback is a very general and powerful tool for controlling the time evolution of a generic open quantum system and therefore it could be of extreme importance for the development of  quantum information processing devices. Quantum feedback schemes are tightly connected to quantum error correction (QEC) schemes, even though there are important differences. In quantum feedback, the encoding on the larger space including the ancillas is replaced by the coupling with a “meter” system which is the one explicitly measured. Moreover, in quantum feedback the measurement step for revealing the error syndrome is always explicitly performed, while in QEC may be replaced by  appropriate quantum logic operations on the joint system formed by the quantum processor and the ancillas. This means that quantum feedback schemes require much less space and system resources, even though they are more sensitive on the ultimate quantum efficiency of the detection apparatuses. The main application of quantum feedback schemes is certainly decoherence control in its more general sense and many schemes have been already proposed and in some cases also demonstrated, especially in atomic ensembles and cavity-QED systems. To be more specific quantum feedback provides alternative ways for ground state initialization of quantum registers, and also to generate and manipulate entangled states of many-qubit systems.]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,13#msg-13</guid>
      <pubDate>Tue, 06 Mar 2007 16:41:14 +0100</pubDate>
    </item>
    <item>
      <title>[Quantum Information Technologies] Quantum Information Technologies: the Oxford Convention</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,12#msg-12</link>
      <author>binosi</author>
      <description><![CDATA[At the QIPC Cluster Review held in Oxford, Feb 28 - March 2, the issue of writing a roadmap section about Quantum Information Technologies (QIT), was brought up by the ERA-Pilot WP1. 

As for why such a section should appear at all, the reason is for elaborating on the text written in the work program for 2007-2008 which makes reference to a possible call in 2009 as ‘QIPC and other quantum technologies’. Thus a roadmap section on QIT would respond to the above in a scientific manner that would be accepted by the QIPC scientific community.

The two basic points to be addressed are therefore:

* How do we want to define them, and
* Provide examples accordingly 

A tentative definition which avoid excessive broadening of the concept has been put forward by the WP1 team. The basic point is that there are two types of technologies:

* Quantum Enabled Technologies, i.e. technological applications of entanglement and superposition (other than those already described in the roadmap)
* Quantum Enabling Technologies, i.e. technologies instrumental in order to develop QIPC devices

Examples in the former class would include quantum metrology, quantum imaging (in fact already discussed in an appendinx of the roadmap) and quantum random number generators; in the latter class, single- and entangled-photon sources and detectors, chips for ion and atom traps.

We ask your feedback on both the definition and the examples, as we are sure that with your help the definition of QIT can be refined, and the examples can be widened.]]></description>
      <category>Quantum Information Technologies</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?6,12,12#msg-12</guid>
      <pubDate>Mon, 05 Mar 2007 11:29:45 +0100</pubDate>
    </item>
    <item>
      <title>[QUROPE Forum] Welcome to the QUROPE forum!</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?3,11,11#msg-11</link>
      <author>ltheussl</author>
      <description><![CDATA[The QUROPE forum is now all set up.

This forum will be used to discuss general topics and issues regarding the QUROPE project as a whole. We hope you will find this service useful and that the QIPC community will make extensive use of it.

Please let us know if you have any questions / suggestions / criticisms. We'd also like to hear any feedback that you might have about the QUROPE web site. It is still largely under development, so any suggestions for changes or improvements will still be taken into consideration!]]></description>
      <category>QUROPE Forum</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?3,11,11#msg-11</guid>
      <pubDate>Fri, 27 Oct 2006 15:02:23 +0200</pubDate>
    </item>
    <item>
      <title>[QIPC Roadmap Forum] Roadmap addenda</title>
      <link>http://www.qurope.net/Q_Feedback/Q_Forum/read.php?4,5,5#msg-5</link>
      <author>binosi</author>
      <description><![CDATA[Is there something that you think that is missing in the QIPC roadmap? Some implementation that have just been developed and you think that could be part of the killer QIPC technology in one way or the other?
Or do you think that the roadmap should be expanded in some of its visions for the future of QIPC (e.g., the fact that there is no vision on how to educate the next generation of computer scientists and even engineers to think so to speak quantum?)

Feel free to post in this forum ANY idea you have about the future of QIPC. Attach any info/document you think it could be interesting for ignite the debate. Young Ph.D and post-docs are very welcome to participate, they will after all be the next generation of QIPC scientists.

We know you all have your personal vision for the future of QIPC and we would like to hear it!]]></description>
      <category>QIPC Roadmap Forum</category>
      <guid isPermaLink="true">http://www.qurope.net/Q_Feedback/Q_Forum/read.php?4,5,5#msg-5</guid>
      <pubDate>Thu, 26 Oct 2006 15:26:43 +0200</pubDate>
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