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Grant
Agency: Cordis | Branch: FP7 | Program: MC-IAPP | Phase: FP7-PEOPLE-2009-IAPP | Award Amount: 771.68K | Year: 2010

The project Q-CERT intends to gather industrial and academic partners with strong scientific and technical backgrounds in quantum key distribution (QKD) technology, in order to establish research partnerships focused on one common high-level objective: strengthen the security of practical QKD systems by developping techniques and standards (both at the hardware and software level) that will allow cryptographic security evaluation and certification At the hardware level, we will conduct systematic studies of the potential vulnerabilities of QKD systems, by testing experimentally the feasibility of attacks on the optical and electronical layer of the systems. We will in response implement experimentally countermeasures, test their efficiency and develop the theoretical framework allowing to model the entire QKD implementation and prove its security. At the software level, we will push further a formal approach of security proof for an essential part of a practical quantum key distribution protocol : key distillation. We will specify and then develop a software library of key distillation that will present a very high-level of security assurance, validated by the use of formal methods for cryptographic protocol verification. This library will in particular include a state-of-the-art error correction module, based on unidirectional LDPC codes. In order to increase the impact of our work, and to benefit from the fruitful interaction and feedback of the research community, we will publicize parts of our results by integrating them in QKD security standards. The development of such security assurance procedures is expected to greatly strengthen the practical security of quantum key distribution (QKD) systems. We will in particular write security targets for a high-performance QKD system, and for a secure infrastructure relying on a network of QKD links.


Grant
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2011.9.9 | Award Amount: 11.78M | Year: 2013

The overarching goal of our project is to develop systems based on direct and deterministic interactions between individual quantum entities, which by involving large-scale entanglement can outperform classical systems in a series of relevant applications.\nWe plan to achieve that by improving technologies from atomic, molecular and optical physics as well as from solid-state physics, and by developing new ones, including combinations across those different domains. We will explore a wide range of experimental platforms as enabling technologies: from cold collisions or Rydberg blockade in neutral atoms to electrostatic or spin interactions in charged systems like trapped ions and quantum dots; from photon-phonon interactions in nano-mechanics to photon-photon interactions in cavity quantum electrodynamics and to spin-photon interactions in diamond color centers.\nWe will work on two deeply interconnected lines to build experimentally working implementations of quantum simulators and of quantum interfaces. This will enable us to conceive and realize applications exploiting those devices for simulating important problems in other fields of physics, as well as for carrying out protocols outperforming classical communication and measurement systems.


Grant
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2009.8.2 | Award Amount: 6.51M | Year: 2010

Quantum entanglement has the capacity to enable disruptive technologies that solve outstanding issues in: - Trust, privacy protection, and security in two- and multi-party transactions; - Novel or enhanced modes of operation of ICT devices; - Reference standards, sensing, and metrology. The development of entanglement-based strategies addresses these challenges and provides the foundations for quantum technologies of the 21st century. The practical exploitation of entanglement requires groundbreaking levels of robustness and flexibility for deployment in real-world environments. This ambitious goal can be reached only through radically new designs of protocols, architectures, interfaces, and components. Q-ESSENCE will achieve this by a concerted application-driven effort covering relevant experimental, phenomenological, and fundamental aspects. Our consortium will target three main outcomes: 1) Development of entanglement-enabled and entanglement-enhanced ICT devices: atomic clocks, quantum sensors, and quantum random-number generators; 2) Novel physical-layer architectures for long-distance quantum communication that surpass current distance limitations through the deployment of next-generation components; 3) Distributed quantum information protocols that provide disruptive solutions to multiuser trust, privacy-protection, and security scenarios based on multipartite entanglement. These outcomes will be reached through the underpinning science and enabling technologies of: light-matter interfaces providing faithful interconversion between different physical realizations of qubits; entanglement engineering at new scales and distances; robust architectures protecting quantum information from decoherence; quantum information concepts that solve problems of limited trust and privacy intrusion. The project builds on the outstanding expertise of the consortium demonstrated by pioneering works over the past decades, enhanced by a strong industrial perspective.


Grant
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2009.3.8 | Award Amount: 2.48M | Year: 2010

The goal of QuRep is to develop a Quantum Repeater - the elementary building block required to overcome current distance limitations for long-distance quantum communication. Quantum Repeaters are the analogue of classical optical amplifiers that permit the cascading of successive fibre optic communication links. Quantum Repeater technology is centred around quantum light-matter interactions at the quantum level in ensembles of rare earth ions frozen in a crystal that store quantum information by coherent control of the quantum degrees of freedom. A clear and well-defined architecture and protocol for a complete Quantum Repeater can be realised with entangled photon pair sources that couple the Quantum memories to fibre optic communication systems. The proof of principle has been shown for all aspects of this approach and QuRep now aims to bridge the gap between fundamental research and industrial projects. The main technological result of the QuRep project will be a quantum repeater. The outcome of the QuREP project will serve as the basis for an industrial initiative, developing the first quantum repeater products. Considering the state of the art, potential difficulties and the chosen development approach, it is reasonable to assume that this technology could be translated into products in the next 10 years with spin-off technologies emerging in the interim period. We bring together the leading European groups in quantum communication, quantum memories, photonic sources and rare-earth-ion spectroscopy and materials as well as a leading quantum communication technology SME to move what has been fundamental research towards commercial feasibility. There are already niche markets for quantum repeaters, should they exist, and the market is expected to grow significantly in the next 10 years.


Grant
Agency: Cordis | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2015-ETN | Award Amount: 3.92M | Year: 2016

Quantum Communications for ALL (QCALL) endeavors to take the next necessary steps to bring the developing quantum technologies closer to the doorsteps of end users. Quantum communications (QC) is well-known for its offering ultra-secure cryptographic key-exchange schemesresilient to any future technological advancement. QCALL will empower a nucleus of researchers in this area to provide secure communications in our continent and, in the long run, to our connections worldwide. With the large scale violations of privacy in the EU exchange of information, this is a crucial moment to pursue this objective. By covering a range of projects, with short, mid, and long-term visions, and using a balanced and multifaceted training programme, QCALL trains a cadre of highly qualified interdisciplinary workforce capable of shaping the R&D section of the field, hence accelerating its widespread adoption. This will ensure that EU will remain at the frontier of research on secure communications and advanced QC systems and devices. In QCALL, we explore the challenges of integrating quantum and classical communication networks; this will be essential in providing cost-efficient services. We experimentally examine and theoretically study new protocols by which network users can exchange secure keys with each other. We investigate disruptive technologies that enable wireless access to such quantum networks, and develop new devices and protocols that enable multi-party QC. Our meticulously planned training programme includes components from shared taught courses through to scientific schools and complementary-skill workshops, supplemented by secondment opportunities and innovative outreach and dissemination activities. This will create a structured model for doctoral training in EU that will last beyond the life of the project, so will the industry-academic collaborations that are essential to the development of the disruptive technologies that will make QC available to ALL.


Cryogenic device comprising at least two chambers at two different temperatures, a first chamber at a first temperature T1 accommodating a sample, and a second chamber at a second temperature T2 greater than T1 and being adapted to accommodate a cooling device, said cooling device being adapted to cool wirelines connecting said sample to an external element detector, wherein said cooling device is an IMS thermalization plate comprising at least one wire-guide having an input for plugging a wire line connected to the sample and an output for plugging a wire line connected to said external element, said wire-guide being thermally connected to the first chamber.


A method for providing eavesdropping detection of an optic fiber communication between two users comprises the steps of exchanging both data and probe signals through at least two channels (400, 500) between the users, exchanging probe signals (143) on one channel (500 or 400) between quantum probe signal terminals, extracting a key for authentication from the probe signals, exchanging data signals (142) between transmission units on another channel (400 or 500). A first portion of the key generated by the quantum probe signal terminals is used to authenticate the terminals, wherein a second portion of the key is dedicated to define commutation occurrences of commutation devices adapted to commutate the use of the channels (400, 500) for data (142) and probe (143) signals, thus detecting an eavesdropping event (300) which triggers an alarm (750). A further portion of the key can be used to encrypt said messages.


A method for providing eavesdropping detection of an optic fiber communication between two users includes the steps of exchanging both data and probe signals through at least two channels (400, 500) between the users, exchanging probe signals (143) on one channel (500 or 400) between quantum probe signal terminals, extracting a key for authentication from the probe signals, and exchanging data signals (142) between transmission units on another channel (400 or 500). A first portion of the key generated by the quantum probe signal terminals is used to authenticate the terminals, wherein a second portion of the key is dedicated to define commutation occurrences of commutation devices adapted to commutate the use of the channels (400, 500) for data (142) and probe (143) signals, thus detecting an eavesdropping event (300) which triggers an alarm (750). A further portion of the key can be used to encrypt the messages.


A method and device for generating random numbers based on an optical process of quantum nature. According to one exemplary aspect, the method includes randomly emitting photons from a light source and absorbing the emitted photons by a photon sensor having a plurality of pixels. Furthermore, respective minimum entropy levels can be calculated for each of the pixels of the photon sensor and a randomness extractor can be associated with each of pixels based on the calculated minimum entropy level of that pixel. After this calibration, the method and device generates a number of high-entropy bits used for generating a random number.


Grant
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2007.3.5 | Award Amount: 3.24M | Year: 2008

Avalanche photodiodes are key components for many applications (telecom, ranging, sensing, spectroscopy,...) because their internal gain improves the photoreceiver sensitivity considerably. Two III-V materials of interest have emerged: AlGaAs and AlInAs, lattice-matched to GaAs and InP, respectively, and both characterised by a wide bandgap. In recent years, a breakthrough in the impact ionisation characteristics was identified and the major importance of a thin avalanche multiplication layer was clearly demonstrated.\nMARISE ambition is aiming to develop innovative engineered APD components with thin avalanche layers to benefit from their promising characteristics likely to advance the present state of the art. MARISE objectives are to push the limits of the new APDs in two directions: speed and sensitivity.\nFor 10Gb/s access and single photon detection, AlInAs/GaInAs will be developed exhibiting low dark current and high responsivity,\nThe development of a very challenging evanescent waveguide APD structure in the same material system will allow for 40Gb/s operation with a record gain-bandwidth product of 200 GHz.\nAlGaAs will be combined with a GaInAsN absorber into an innovative, very low noise and potentially low cost GaAs-based APD, suitable for 1.3 m telecom applications.\nIn MARISE, the APDs characteristics will be thoroughly assessed, and their suitability will be investigated for the following large-scale applications:\n 10Gb/s burst-mode photoreceivers for broadband access and local area networks,\n Core networks receivers at 40Gb/s based on waveguide APDs,\n Single photon detection for use in secure communications.\nFor each application, the impact of improved APD performance will be demonstrated in terms of increased receiver sensitivity and bandwidth, extended network performance, power budget or splitting factor.

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