Results 1 to 10 of about 211,994 (273)

Second quantization of many-body dispersion interactions for chemical and biological systems [PDF]

open access: yesNature Communications, 2023
The many-body dispersion (MBD) framework is a successful approach for modeling the long-range electronic correlation energy and optical response of systems with thousands of atoms.
Matteo Gori   +2 more
doaj   +2 more sources

Boson–Fermion Algebraic Mapping in Second Quantization [PDF]

open access: yesEntropy
We present an algebraic method to derive the structure at the basis of the mapping of bosonic algebras of creation and annihilation operators into fermionic algebras, and vice versa, introducing a suitable identification between bosonic and fermionic ...
Fabio Lingua   +3 more
doaj   +2 more sources

Majorana Mass Term of Majorana Spinors

open access: yesPhysical Sciences Forum, 2023
We have proven that, under the standard charge conjugation approach, the Majorana mass term in QFT must vanish. We have derived formulas for the Majorana spinor field operator without any assumptions about the second quantization procedure. The fact that
Vadim Monakhov
doaj   +1 more source

SECOND QUANTIZED KOLMOGOROV COMPLEXITY [PDF]

open access: yesInternational Journal of Quantum Information, 2008
The Kolmogorov complexity of a string is the length of its shortest description. We define a second quantized Kolmogorov complexity where the length of a description is defined to be the average length of its superposition. We discuss this complexity's basic properties.
Rogers, C, Vedral, V, Nagarajan, R
openaire   +4 more sources

Second Quantization and the Spectral Action [PDF]

open access: yes, 2020
We consider both the bosonic and fermionic second quantization of spectral triples in the presence of a chemical potential. We show that the von Neumann entropy and the average energy of the Gibbs state defined by the bosonic and fermionic grand ...
Dong, Rui   +2 more
core   +2 more sources

A fourth‐order incremental ADC in three‐step

open access: yesThe Journal of Engineering, 2021
This letter presents a second‐order incremental ADC (IADC) operated in three steps, which extends the performance of a second‐order IADC close to that of a fourth‐order IADC with only two amplifiers.
Jia‐Sheng Huang   +5 more
doaj   +1 more source

Quantum computation for periodic solids in second quantization

open access: yesPhysical Review Research, 2023
In this work, we present a quantum algorithm for ground-state energy calculations of periodic solids on error-corrected quantum computers. The algorithm is based on the sparse qubitization approach in second quantization and developed for Bloch and ...
Aleksei V. Ivanov   +6 more
doaj   +1 more source

The Casimir effect

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: The quantization of the electromagnetic field gives rise to quantum fluctuations which in turn produce a force on macroscopic boundaries. This phenomenon is called the Casimir effect.
Nicola Fabiano
doaj   +1 more source

Antimatter Gravity: Second Quantization and Lagrangian Formalism

open access: yesPhysics, 2020
The application of the CPT (charge-conjugation, parity, and time reversal) theorem to an apple falling on Earth leads to the description of an anti-apple falling on anti–Earth (not on Earth).
Ulrich D. Jentschura
doaj   +1 more source

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