Results 21 to 30 of about 5,914,333 (296)

Topological phase transitions induced by varying topology and boundaries in the toric code

open access: yesNew Journal of Physics, 2021
One of the important characteristics of topological phases of matter is the topology of the underlying manifold on which they are defined. In this paper, we present the sensitivity of such phases of matter to the underlying topology, by studying the ...
Amit Jamadagni, Arpan Bhattacharyya
doaj   +1 more source

Topological Defects in Gauge Theories of Open p-branes [PDF]

open access: yes, 1996
We study phase transitions induced by topological defects in Abelian gauge theories of open p-branes in (d+1) space-time dimensions. Starting from a massive antisymmetric tensor theory for open p-branes we show how the condensation of topological defects
Cardy   +35 more
core   +2 more sources

Phase transitions in the classical simulability of open quantum systems

open access: yesScientific Reports, 2023
We introduce a Langevin unravelling of the density matrix evolution of an open quantum system over matrix product states, which we term the time-dependent variational principle-Langevin equation.
F. Azad   +3 more
doaj   +1 more source

Gaussian phase-space representations for fermions [PDF]

open access: yes, 2005
We introduce a positive phase-space representation for fermions, using the most general possible multi-mode Gaussian operator basis. The representation generalizes previous bosonic quantum phase-space methods to Fermi systems.
C. W. Gardiner   +8 more
core   +2 more sources

Open-Loop Wide-Bandwidth Phase Modulation Techniques

open access: yesJournal of Electrical and Computer Engineering, 2011
The ever-increasing growth in the bandwidth of wireless communication channels requires the transmitter to be wide-bandwidth and power-efficient. Polar and outphasing transmitter topologies are two promising candidates for such applications, in future ...
Nitin Nidhi, Pin-En Su, Sudhakar Pamarti
doaj   +1 more source

Investigating Direct Torque Control of Six-Phase Induction Machines Under Open Phase Fault Conditions [PDF]

open access: yesAUT Journal of Electrical Engineering, 2017
This paper presents analysis and evaluation of classical direct torque control(DTC), for controlling a symmetrical six phase induction motor (SPIM) under open phasefault conditions.
R. Kianinezhad, A. Hajary
doaj   +1 more source

Open-Sea Testing of Two-Phase Marine Ramjet Propulsion

open access: yesJournal of Marine Science and Engineering, 2023
Open-sea testing of a two-phase marine ramjet vehicle has been conducted. This experimental phase was accomplished following comprehensive theoretical research. The concept of two-phase marine ramjet propulsion consists of a submerged propulsor acquiring
Shlomit Valensi, Alon Gany
doaj   +1 more source

Efficacy, safety, and dose of Pafuramidine, a new oral drug for treatment of first stage sleeping sickness, in a phase 2a clinical study and phase 2b randomized clinical studies [PDF]

open access: yes, 2016
Sleeping sickness (human African trypanosomiasis [HAT]) is caused by protozoan parasites and characterized by a chronic progressive course, which may last up to several years before death.
Allen, James L.   +19 more
core   +4 more sources

Open-source computational framework for studying Drosophila behavioral phase

open access: yesSTAR Protocols, 2021
Summary: This protocol describes a standardized method for analyzing Drosophila behavioral rhythmicity under light dark cycles, temperature ramps, and free running conditions.
Boyan Kostadinov   +6 more
doaj   +1 more source

Adiabatic Berry Phase and Hannay Angle for Open Paths

open access: yes, 1998
We obtain the adiabatic Berry phase by defining a generalised gauge potential whose line integral gives the phase holonomy for arbitrary evolutions of parameters. Keeping in mind that for classical integrable systems it is hardly clear how to obtain open-
Aharonov   +24 more
core   +1 more source

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