Open Quantum Random Walks on the Half-Line: The Karlin–McGregor Formula, Path Counting and Foster’s Theorem
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Statistical Physics"
DOI: 10.1007/s10955-017-1876-x
Abstract: In this work we consider open quantum random walks on the non-negative integers. By considering orthogonal matrix polynomials we are able to describe transition probability expressions for classes of walks via a matrix version of… read more here.
Keywords: quantum; karlin mcgregor; quantum random; random walks ... See more keywords
Open quantum random walk in terms of quantum Bernoulli noise
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1820-2
Abstract: In this paper, we introduce an open quantum random walk, which we call the QBN-based open walk, by means of quantum Bernoulli noise, and study its properties from a random walk point of view. We… read more here.
Keywords: quantum random; open quantum; walk; random walk ... See more keywords
Quantum Markov semigroups for continuous-time open quantum random walk
Sign Up to like & getrecommendations! Published in 2019 at "Quantum Information Processing"
DOI: 10.1007/s11128-019-2294-6
Abstract: Open quantum random walks in Attal et al. (Phys Lett A 376:1545–1548, 2012) are quantum generalizations of classical Markov chains. In this paper, we firstly consider a problem to construct a quantum Markov semigroup (QMS)… read more here.
Keywords: quantum random; open quantum; quantum; quantum markov ... See more keywords
The geometry of Bloch space in the context of quantum random access codes
Sign Up to like & getrecommendations! Published in 2022 at "Quantum Information Processing"
DOI: 10.1007/s11128-022-03470-4
Abstract: We study the communication protocol known as a Quantum Random Access Code (QRAC) which encodes n classical bits into m qubits (m < n) with a probability of recovering any of the initial n bits… read more here.
Keywords: random access; geometry; geometry bloch; quantum ... See more keywords
Robustness of quantum random walk search with multi-phase matching
Sign Up to like & getrecommendations! Published in 2024 at "Quantum Information Processing"
DOI: 10.1007/s11128-025-04736-3
Abstract: In our previous works, we have studied quantum random walk search algorithm on hypercube, with traversing coin constructed by using generalized Householder reflection and a phase multiplier. When the same phases are used each iteration,… read more here.
Keywords: random walk; walk search; phase; quantum random ... See more keywords
The effect of coherence between two photons on quantum random walk
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2020.164288
Abstract: Abstract Quantum random walk with two controlled coherent photon is discussed. Two polarization entangled photons with completely coherence are generated by spontaneous parametric down-conversion (SPDC), and then a half wave plate (HWP) is used to… read more here.
Keywords: coherence; quantum random; effect coherence; random walk ... See more keywords
Quantum random number generation with uncharacterized laser and sunlight
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-019-0208-1
Abstract: The entropy or randomness source is an essential ingredient in random number generation. Quantum random number generators generally require well modeled and calibrated light sources, such as a laser, to generate randomness. With uncharacterized light… read more here.
Keywords: uncharacterized laser; quantum random; randomness; generation ... See more keywords
Device-independent quantum random-number generation
Sign Up to like & getrecommendations! Published in 2018 at "Nature"
DOI: 10.1038/s41586-018-0559-3
Abstract: Randomness is important for many information processing applications, including numerical modelling and cryptography1,2. Device-independent quantum random-number generation (DIQRNG)3,4 based on the loophole-free violation of a Bell inequality produces genuine, unpredictable randomness without requiring any assumptions… read more here.
Keywords: quantum; quantum random; bell; number generation ... See more keywords
Generation of correlated quantum random number sequences with bright twin beams
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0279909
Abstract: Quantum random number generators play a vital role in securing communication and encryption. In the present work, we have produced bright twin beams using four-wave mixing in a double-Λ configuration in rubidium-85 vapor and generated… read more here.
Keywords: bright twin; twin beams; random numbers; quantum random ... See more keywords
Color image encryption algorithm based on quantum random walk and multiple reset scrambling
Sign Up to like & getrecommendations! Published in 2024 at "Physica Scripta"
DOI: 10.1088/1402-4896/ad22c2
Abstract: In order to address the issues of privacy breaches, data tampering, and security threats in the realm of image encryption and information security, it is essential to ensure the confidentiality, integrity, and reliability of image… read more here.
Keywords: color image; image; image encryption; encryption ... See more keywords
Quantum random walk and tight-binding model subject to projective measurements at random times
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/ac5dc0
Abstract: What happens when a quantum system undergoing unitary evolution in time is subject to repeated projective measurements to the initial state at random times? A question of general interest is: how does the survival probability… read more here.
Keywords: random times; quantum random; survival probability; projective measurements ... See more keywords