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9 papers · 1 filter
Multi-Hop Quantum Key Distribution with Passive Relays over Underwater Turbulence Channels
Amir Hossein Fahim Raouf, Majid Safari, Murat Uysal
Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communications. In this paper, to overcome range limitations, we inves…
On the Optimization of Underwater Quantum Key Distribution Systems with Time-Gated SPADs
Amir Hossein Fahim Raouf, Murat Uysal
In this paper, we study the effect of various transmitter and receiver parameters on the quantum bit error rate (QBER) performance of underwater quantum key distribution. We utiliz…
Cryptographic Security Concerns on Timestamp Sharing via Public Channel in Quantum Key Distribution Systems
Melis Pahalı, Utku Tefek, Kadir Durak
Quantum key distribution protocols are known to be vulnerable against a side channel attack that exploits the time difference in detector responses used to obtain key bits. The rec…
Quantum signatures in quadratic optomechanical heat engine with an atom in a tapered trap
Mohsen Izadyari, Mehmet Öncü, Kadir Durak +1
We investigate how quantum signatures can emerge in a single atom heat engine consisting of an atom confined in a tapered trap and subject to hot and cold thermal reservoirs. A sim…
Feasibility Study for CubeSat Based Trusted Node Configuration Global QKD Network
Ekin Aykut, Hashir Kuniyil, Melis Pahalı +3
Quantum key distribution (QKD) is the most used protocol in the context of quantum cryptography for sharing a private encryption key between two parties. Covid-19 pandemic has rais…
Entanglement demonstration on board a nano-satellite
Aitor Villar, Alexander Lohrmann, Xueliang Bai +14
Global quantum networks for secure communication can be realised using large fleets of satellites distributing entangled photon-pairs between ground-based nodes. Because the cost o…