Classical analog of qubit logic based on a magnon Bose-Einstein
condensate
- URL: http://arxiv.org/abs/2111.06798v2
- Date: Fri, 7 Jan 2022 16:20:38 GMT
- Title: Classical analog of qubit logic based on a magnon Bose-Einstein
condensate
- Authors: Morteza Mohseni, Vitaliy I. Vasyuchka, Victor S. L'vov, Alexander A.
Serga, and Burkard Hillebrands
- Abstract summary: We present a classical version of several quantum bit (qubit) functionalities using a two-component magnon Bose-Einstein condensate.
The macroscopic wavefunctions of these two condensates serve as orthonormal basis states that form a system being a classical counterpart of a single qubit.
- Score: 52.77024349608834
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present a classical version of several quantum bit (qubit) functionalities
using a two-component magnon Bose-Einstein condensate formed at opposite
wavevectors in a room-temperature yttrium-iron-garnet ferrimagnetic film. The
macroscopic wavefunctions of these two condensates serve as orthonormal basis
states that form a system being a classical counterpart of a single qubit.
Solving the Gross-Pitaevskii equation and employing micromagnetic numerical
simulations, we first show how to initialize the system in one of the basis
states: the application of wavevector-selective parallel parametric pumping
allows us to form only a single condensate in one of the two lowest energy
states of the magnon gas. Next, by translating the concept of Rabi-oscillations
into the wavevector domain, we demonstrate how to manipulate the magnon-BEC
system along the polar axis in the Bloch sphere representation. We also discuss
the manipulation regarding the azimuthal angle.
Related papers
- Relating interfacial Rossby wave interaction in shear flows with Feynman's two-state coupled quantum system model for the Josephson junction [0.0]
We show how Feynman's model for the Josephson junction, as a macroscopic two-state coupled quantum system, has a one-to-one correspondence with the stable dynamics of two interfacial Rossby waves.
Quantum-like tunneling is enabled via action-at-a-distance between the two Rossby waves.
A partial analog to the quantum collapse of the wavefunction is also obtained due to the existence of a separatrix between "normal mode regions of influence" on the phase plane.
arXiv Detail & Related papers (2024-04-11T15:30:20Z) - Towards the simplest model of quantum supremacy: Atomic boson sampling
in a box trap [0.0]
We describe boson sampling of interacting atoms from the noncondensed fraction of Bose-Einstein-condensed (BEC) gas confined in a box trap.
We calculate the characteristic function and statistics of atom numbers via newly found hafnian master theorem.
arXiv Detail & Related papers (2023-05-15T03:09:20Z) - A model of wave function collapse in a quantum measurement of spin as
the Schroedinger equation solution of a system with a simple harmonic
oscillator in a bath [0.0]
We present a set of exact system solutions to a model we developed to study wave function collapse in the quantum spin measurement process.
Specifically, we calculated the wave function evolution for a simple harmonic oscillator of spin frac12, with its magnetic moment in interaction with a magnetic field.
arXiv Detail & Related papers (2023-04-07T23:27:52Z) - Dilute neutron star matter from neural-network quantum states [58.720142291102135]
Low-density neutron matter is characterized by the formation of Cooper pairs and the onset of superfluidity.
We model this density regime by capitalizing on the expressivity of the hidden-nucleon neural-network quantum states combined with variational Monte Carlo and reconfiguration techniques.
arXiv Detail & Related papers (2022-12-08T17:55:25Z) - Quantum emulation of the transient dynamics in the multistate
Landau-Zener model [50.591267188664666]
We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity.
Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
arXiv Detail & Related papers (2022-11-26T15:04:11Z) - Floquet-heating-induced Bose condensation in a scar-like mode of an open
driven optical-lattice system [62.997667081978825]
We show that the interplay of bath-induced dissipation and controlled Floquet heating can give rise to non-equilibrium Bose condensation.
Our predictions are based on a microscopic model that is solved using kinetic equations of motion derived from Floquet-Born-Markov theory.
arXiv Detail & Related papers (2022-04-14T17:56:03Z) - Probing quantum effects with classical stochastic analogs [0.0]
We propose a method to construct a classical analog of an open quantum system.
The classical analog is made out of a collection of identical wells where classical particles of mass $m$ are trapped.
arXiv Detail & Related papers (2020-12-13T18:02:27Z) - Feynman Functional Integral in the Fokker Theory [62.997667081978825]
equivalence of two formulations of Fokker's quantum theory is proved.
The common basis for the two approaches is the generalized canonical form of Fokker's action.
arXiv Detail & Related papers (2020-11-11T12:10:01Z) - Functional Theory for Bose-Einstein Condensates [0.0]
One-particle reduced density matrix functional theory would potentially be the ideal approach for describing Bose-Einstein condensates.
We eventually initiate and establish this novel theory by deriving the respective universal functional $mathcalF$ for general homogeneous Bose-Einstein condensates.
arXiv Detail & Related papers (2020-10-13T18:56:20Z) - Quantum Simulation of 2D Quantum Chemistry in Optical Lattices [59.89454513692418]
We propose an analog simulator for discrete 2D quantum chemistry models based on cold atoms in optical lattices.
We first analyze how to simulate simple models, like the discrete versions of H and H$+$, using a single fermionic atom.
We then show that a single bosonic atom can mediate an effective Coulomb repulsion between two fermions, leading to the analog of molecular Hydrogen in two dimensions.
arXiv Detail & Related papers (2020-02-21T16:00:36Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.