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A sub-excitable BZ medium responds to asymmetric local perturbation by producing travelling localised excitation wave-fragments, distant relatives of dissipative solitons. The size and life span of an excitation wave-fragment depend on the…

Emerging Technologies · Computer Science 2015-10-28 Andrew Adamatzky

In a sub-excitable light-sensitive Belousov-Zhabotinsky chemical medium an asymmetric disturbance causes the formation of localized traveling wave-fragments. Under the right conditions these wave-fragment can conserve their shape and…

Pattern Formation and Solitons · Physics 2012-06-26 Andrew Adamatzky , Ben De Lacy Costello , Larry Bull

We demonstrate an improved technique for implementing logic circuits in light-sensitive chemical excitable media. The technique makes use of the constant-speed propagation of waves along defined channels in an excitable medium based on the…

Pattern Formation and Solitons · Physics 2012-08-06 William M. Stevens , Andrew Adamatzky , Ishrat Jahan , Ben de Lacy Costello

We introduce results of computer experiments on information processing in a hexagonal array of vesicles filled with Belousov-Zhabotinsky (BZ) solution in a sub-excitable mode. We represent values of Boolean variables by excitation…

Pattern Formation and Solitons · Physics 2012-06-26 Andrew Adamatzky , Julian Holley , Larry Bull , Ben De Lacy Costello

A thin-layer Belousov-Zhabotinsky (BZ) medium is a powerful computing device capable for implementing logical circuits, memory, image processors, robot controllers, and neuromorphic architectures. We design the reversible logical gates ---…

Emerging Technologies · Computer Science 2017-04-26 Andrew Adamatzky

Excitation waves on a sub-excitable Belousov Zhabotinsky (BZ) substrate can be manipulated by chemical variations in the substrate and by interactions with other waves. Symbolic assignment and interpretation of wave dynamics can be used to…

Pattern Formation and Solitons · Physics 2011-10-27 Julian Holley , Ishrat Jahan , Ben De Lacy Costello , Larry Bull , Andrew Adamatzky

We present both simulated and partial empirical evidence for the computational utility of many connected vesicle analogs of an encapsulated non-linear chemical processing medium. By connecting small vesicles containing a solution of…

Cellular Automata and Lattice Gases · Physics 2010-09-13 Julian Holley , Andrew Adamatzky , Larry Bull , Ben De Lacy Costello , Ishrat Jahan

An excitable chemical medium --- Belousov-Zhabotinsky (BZ) reaction --- is proven to be a fruitful substrate for prototyping unconventional computing devices. These include image processors, logical circuits, and robot controllers. We study…

Emerging Technologies · Computer Science 2023-10-11 Andrew Adamatzky , Mohammad Mahdi Dehshibi

Liquid marbles are microlitre droplets of liquid, encapsulated by self-organised hydrophobic particles at the liquid/air interface. They offer an efficient approach for manipulating liquid droplets and compartmentalising reactions in…

Emerging Technologies · Computer Science 2018-11-06 Thomas C. Draper , Claire Fullarton , Neil Phillips , Ben P. J. De Lacy Costello , Andrew Adamatzky

It has been shown that it is possible to transform a well-stirred chemical medium into a logic-gate simply by varying the chemistry's external conditions (feed rates, lighting conditions, etc). We extend this work, showing that the same…

Chemical Physics · Physics 2019-09-13 Matthew Egbert , Jean-Sebastien Gagnon , Juan Perez-Mercader

We show that individual vibrational modes in single-molecule junctions with asymmetric molecule-lead coupling can be selectively excited by applying an external bias voltage. Thereby, a non-statistical distribution of vibrational energy can…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 R. Volkovich , R. Härtle , M. Thoss , U. Peskin

Electronically gated bilayer graphene behaves as a tunable gap semiconductor under a uniform interlayer bias $V_{g}$. Imposing a spatially varying bias, which changes polarity from $-V_g$ to $+V_g$, leads to one dimensional (1D) chiral…

Strongly Correlated Electrons · Physics 2015-05-18 Matthew Killi , Tzu-Chieh Wei , Ian Affleck , Arun Paramekanti

In nature, excitable reaction-diffusion systems found in diverse settings (e.g. chemical reactions, metal rust, yeast, amoeba, heart, brain) generate geometrically similar macroscopic waves(1,2). For the heart and brain, the spatiotemporal…

Tissues and Organs · Quantitative Biology 2015-08-12 Rebecca A. B. Burton , Alekxandra Klimas , Christina M. Ambrosi , Emilia Entcheva , Gil Bub

We simulate the collapse of a turbulent gas cloud with the particle-based code Gadget2. We choose two sub-clouds, formed by those particles located around the centers $\vec{r}_L$ and $\vec{r}_R$ and within the radii $r_L$ and $r_R$,…

Solar and Stellar Astrophysics · Physics 2022-10-12 Guillermo Arreaga-Garcia

We explore geometry of London's streets using computational mode of an excitable chemical system, Belousov-Zhabotinsky (BZ) medium. We virtually fill in the streets with a BZ medium and study propagation of excitation waves for a range of…

Emerging Technologies · Computer Science 2018-07-18 Andrew Adamatzky , Neil Phillips , Roshan Weerasekera , Michail-Antisthenis Tsompanas , Georgios Ch. Sirakoulis

The latest molecular data - potential energy curves and Rydberg-valence interactions - characterising the super-excited electronic states of BF are reviewed in order to provide the input for the study of their fragmentation dynamics.…

We propose an effective realization of the universal set of elementary quantum gates in solid state quantum computer based on macroscopic (or mesoscopic) resonance systems - multi-atomic coherent ensembles, squids or quantum dots in quantum…

Quantum Physics · Physics 2013-01-11 F. M. Ablayev , S. N. Andrianov , S. A. Moiseev , A. V. Vasiliev

The anyonic excitations of topological two-body color code model are used to implement a set of gates. Because of two-body interactions, the model can be simulated in optical lattices. The excitations have nontrivial mutual statistics, and…

Quantum Physics · Physics 2015-05-20 Mehdi Kargarian

A fluidic one-bit half-adder is made of five channels which intersect at a junction. Two channels are inputs, two channels are outputs and one channel is the drain. The channels direct fluid from input fragments to output fragments and the…

Emerging Technologies · Computer Science 2016-02-03 Alex J. L. Morgan , David A. Barrow , Andrew Adamatzky , Martin M. Hanczyc

We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to…

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