Results 171 to 180 of about 5,233,673 (285)

Generalized Gram–Hadamard inequality

open access: yesJournal of Inequalities and Applications, 1998
We generalize the classical Gram determinant inequality. Our generalization follows from the boundedness of the antisymmetric tensor product operator. We use fermionic Fock space methods.
Scharf Günter   +1 more
doaj  

Correction Scheme for Molecular Total Energies From Quantum Phase Estimation Under Limited Qubit Resources

open access: yesJournal of Computational Chemistry, Volume 47, Issue 14, 30 May 2026.
We propose a hybrid quantum and classical method for accurately evaluating molecular total energies with limited logical qubits. In our subspace dynamic correlation (SDC) method, electron correlation involving core and external orbitals that are not encoded on the quantum computer is recovered using an approximate wavefunction reconstructed on ...
Nobuki Inoue, Hisao Nakamura
wiley   +1 more source

On BRST Lagrangian description of partially massless bosonic fields

open access: yesEuropean Physical Journal C: Particles and Fields
We present an exhaustive BRST lagrangian description of partially massless bosonic fields in four-dimensional space. The basic fields are formulated in terms of two-component spin-tensors in (A)dS space where the tracelessness conditions are ...
I. L. Buchbinder   +2 more
doaj   +1 more source

Computational Design of Zinc Single‐Atom Catalysts in Lantern Organic Framework

open access: yesJournal of Computational Chemistry, Volume 47, Issue 14, 30 May 2026.
We present a DFT study of zinc‐embedded Lantern Organic Frameworks (Zn@LOFs), revealing that sp3‐bridged structures favor thermodynamically stable endo‐configuration, while sp‐bridged structures enable kinetically trapped exo‐configuration, both potentially suppressing ZnZn agglomeration. Beyond structural stability, Zn@LOFs exhibit tunable electronic
Lam H. Nguyen, Thanh N. Truong
wiley   +1 more source

Spin Crossover around Room Temperature: Effects of Remote Ligand Symmetry Breaking within Jäger‐Type Iron(II) Complexes

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 8, 25 May 2026.
Remote symmetry breaking in Jäger‐type iron(II) complexes shifts stepwise spin crossover (SCO) profiles to continuous profiles with transition temperatures around room temperature. In a bottom‐up approach, we studied the feedback of slight molecular modifications on the spin crossover (SCO) properties of otherwise structurally conserved iron(II ...
Florian Daumann   +4 more
wiley   +1 more source

Product wave-functions in Fock-space

open access: yes, 2015
Slater determinants provide a convenient basis for expanding many-electron wave functions. In second quantization they are written as a product of creation operators acting on the vacuum.
Thi, Hoai Le
core  

Beyond Fock space in three-dimensional semiclassical gravity

open access: yes, 2014
Quantization of relativistic point particles coupled to three-dimensional Einstein gravity naturally leads to field theories living on the Lorentz group in their momentum representation. The Lie group structure of momentum space can be traced back to the
ARZANO, MICHELE   +6 more
core   +1 more source

Unitary One Matrix Models: String Equations and Flows

open access: yes, 1992
We review the Symmetric Unitary One Matrix Models. In particular we discuss the string equation in the operator formalism, the mKdV flows and the Virasoro Constraints.
Anagnostopoulos, K   +3 more
core  

Matrices related to some Fock space operators

open access: yes
Tyt. z nagł.References p. 296.Dostępny również w formie drukowanej.ABSTRACT: Matrices of operators with respect to frames are sometimes more natural and easier to compute than the ones related to bases. The present work investigates such operators on the
Rudol, Krzysztof.
core  

The semiclassical propagator in Fock space: dynamical echo and many-body interference. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2016
Engl T, Urbina JD, Richter K.
europepmc   +1 more source

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