Analytic view on N body interaction in electrostatic quantum gates and decoherence effects in tight-binding model
نویسندگان
چکیده
Analytical solutions describing quantum swap and Hadamard gate are given with the use of tight-binding approximation. Decoherence effects described analytically for 2 interacting electrons confined by local potentials simplistic model in Schroedinger formalism omission spin degree freedom. The obtained results can be generalized case [Formula: see text] electrostatically bodies ([Formula: text]-qubit) system representing any electrostatic inputs/outputs. mathematical structure evolution time is specified.
منابع مشابه
Quantum Gates and Decoherence
In this article we will be concerned with some possible physical realizations of quantum gates that are useful for quantum information processing. After a brief introduction into the subject, in Sec. 2 we will focus on a particular way of using atoms in one-dimensional optical lattices as carriers of the quantum information. In Sec. 3 on the contrary, the information carriers will be photons th...
متن کاملA Bohmian view on quantum decoherence
– The implications of quantum decoherence within the context of Bohmian mechanics are analyzed. By using the double–slit experiment as an example, we show that decoherence is not a sufficient mechanism to obtain the classical limit. Our results show that although decoherence produces an intensity pattern identical to the classical one (without interference), there still remain non–local (quantu...
متن کاملInteraction and Quantum Decoherence in Disordered Conductors
Wepresent a nonperturbative approach which allows to evaluate the weak localization correction to the conductivity of disordered conductors in the presence of interactions. The effect of the electron-electron interaction on the magnetoconductance is described by the function A(t) exp(−f(t)). The dephasing time is determined only by f(t), and this time remains finite down to T = 0 due to the ele...
متن کاملCoulomb effects on the transmittance of open quantum dots in a tight-binding model
A quantum-mechanical calculation of conductance in an open quantum dot is performed in the Landauer-Büttiker formalism using a tight binding Hamiltonian with direct Coulomb interaction. The charge distribution in the dot is calculated self-consistently as function of a gate potential, for various dot-leads couplings. The interaction is active only inside the dot, but not in the leads, its stren...
متن کاملanalyzing patterns of classroom interaction in efl classrooms in iran
با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Quantum Information
سال: 2021
ISSN: ['0219-7499', '1793-6918']
DOI: https://doi.org/10.1142/s021974992141001x