Results 11 to 20 of about 3,745 (283)
Stochastic integral representations of second quantization operators
Journal of Functional Analysis, 2004 The author proves that the second quantization \(\Gamma (h)\) of a bounded operator \(h\) on \(L^2 ({\mathbb R}_+)\) can be represented as a quantum stochastic integral if and only if \(h\) admits a decomposition as the sum of a Hilbert-Schmidt operator \(K\) and an operator \(M\) of multiplication by an essentially bounded function.
Pautrat, Yan
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Operator Gauge Symmetry in QED [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2006 In this paper, operator gauge transformation, first introduced by Kobe, is applied to Maxwell's equations and continuity equation in QED. The gauge invariance is satisfied after quantization of electromagnetic fields.
Siamak Khademi, Sadollah Nasiri
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, 2023 This paper presents a general second-quantized form of a permutation operator interchanging $n$ pairs of electrons between interacting subsystems in the framework of the symmetry-adapted perturbation theory (SAPT).
Piotr, Zuchowski +2 more
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Physical Review Research, 2020 We employ a recently developed quantization scheme for quasinormal modes (QNMs) to study a nonperturbative open cavity–QED system consisting of a hybrid metal-dielectric resonator coupled to a quantum emitter.
Sebastian Franke +4 more
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Wavelet-based fragile watermarking scheme for image authentication [PDF]
, 2007 We propose a fragile watermarking scheme in the wavelet transform domain that is sensitive to all kinds of manipulations and has the ability to localize the tampered regions.
Si, Huayin, Li, Chang-Tsun
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SciPost Physics, 2020 We compute the partition function of 2D Jackiw-Teitelboim (JT) gravity at finite cutoff in two ways: (i) via an exact evaluation of the Wheeler-DeWitt wavefunctional in radial quantization and (ii) through a direct computation of the Euclidean path ...
Luca V. Iliesiu, Jorrit Kruthoff, Gustavo J. Turiaci, Herman Verlinde
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Second-Quantized Fermionic Operators with Polylogarithmic Qubit and Gate Complexity
PRX Quantum, 2022 We present a method for encoding second-quantized fermionic systems in qubits when the number of fermions is conserved, as in the electronic structure problem. When the number $F$ of fermions is much smaller than the number $M$ of modes, this symmetry reduces the number of information-theoretically required qubits from $Θ(M)$ to $O(F\log M)$.
William Kirby +3 more
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Spin-resolved transport physics induced by a Majorana-fermion zero mode
AIP Advances, 2019 By using the Hubbard operator Green’s function method, the spin-resolved transport properties of a quantum dot coupled to metallic leads and side-coupled to a topological superconductor wire hosting Majorana bound states (MBSs) are studied theoretically.
Pengbin Niu +5 more
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AUTOMATIC RECTIFICATION OF BUILDING FAÇADES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Focusing mainly on the case of (near-)planar building façades, a methodology for their automatic projective rectification is described and evaluated. It relies on a suitably configured, calibrated stereo pair of an object expected to contain a minimum of
V. Tsironis +5 more
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Spin-other-orbit Operator in the Tensorial Form of Second Quantization [PDF]
Physica Scripta, 1998 The tensorial form of the spin-other-orbit interaction operator in the formalism of second quantization is presented. Such an expression is needed to calculate both diagonal and off-diagonal matrix elements according to an approach, based on a combination of second quantization in the coupled tensorial form, angular momentum theory in three spaces ...
Gaigalas, G. +3 more
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