KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Access type: UnknownAuthor: search.filters.author.Pongwongtragull, P.

Search Results

Now showing 1 - 3 of 3
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Crosstalk effects of quantum key distribution via a quantum router
    (2011-05-01)
    Yooplao, P.
    ;
    Pongwongtragull, P.
    ;
    Mitatha, S.
    ;
    Yupapin, P. P.
    We propose a new system of quantum cryptography for internet security using Gaussian pulses propagating within a nonlinear ring resonator system, quantum processor and a wavelength router.To increase the channel capacity and security, the multiplexer is operated incorporating a quantum processing unit via an optical multiplexer. The transmission part can be used to generate the high capacity quantum codes within the series of microring resonators and an add/drop filter. The receiver part can be communicated by using the quantum key (quantum bit, qubit) via a wavelength router and quantum processors. The reference states can be recognized by using the cloning unit, which is operated by the add/drop filter, where the communication between Alice and Bob can be performed. The results obtained have shown that the correlated photons can be generated and formed the entangled photon pair, which is allowed to form the secret key between Alice and Bob. In application, the embedded system within the computer processing unit is available for quantum computer. © 2011 Wiley Periodicals, Inc.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    A simultaneous generation of QKD and QDC via optical memory array for distributed network security
    (2010-12-01)
    Pongwongtragull, P.
    ;
    Mitatha, S.
    ;
    Yupapin, P. P.
    We propose a novel system of a simultaneous generation of continuous variable quantum key distribution (QKD) and quantum dense coding (QDC) via an optical memory array. The optical memory system is formed by using an array waveguide incorporating a nano-ring resonator, whereas the different spatial light modes can be generated and stored within an optical memory unit. The polarized photon is formed and stored within a storing device, i.e. a ring resonator, whereas the different time slot entangled photons can be generated, transmitted and detected by the different subscriber in the distributed networks. By using the optical memory concept, the continuous variable quantum key distribution is provided. Furthermore, the use of quantum dense coding via time division multiplexing paths, i.e. different time slot, is also plausible. The advantage of the proposed system is that the quantum key distribution can provide the network top security with high capacity and safety, which is the large demand of usage in the public networks. © 2009 Elsevier GmbH. All rights reserved.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Quantum parallel processing manipulation using Gaussian pulses via an optical multiplexer
    (2010-01-01)
    Pongwongtragull, P.
    ;
    Suchat, S.
    ;
    Mitatha, S.
    ;
    Yupapin, P. P.
    We propose a new system of quantum signal and parallel processing using Gaussian pulses propagating within a nonlinear ring resonator system. To increase the channel capacity and security, the multiplexer is operated incorporating a quantum processing unit via an optical multiplexer. The transmitted part can be used to generate the high capacity packet of quantum codes within the series of micro ring resonators. The received part can be used to detect the quantum bits (qubits) via the optical link, which can be obtained via the end quantum processor. The reference states can be recognized by using the cloning unit, which is operated by the add/drop filter. Two add-drops that are in two parts can be used to be Alice and Bob, respectively, in quantum communication. Results obtained have shown that the multiplexed wavelengths can be formed by using the multiple operating systems, which is allowed the filtering at the end users (Bob). In application, the embedded system within the computer processing unit is available for quantum computer. Furthermore, such a concept is also available for hybrid communications, for instance, wire/wireless, satellite, which will be discussed in details.