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Particle number operator

Known as: Number operator, Particle number operators 
In quantum mechanics, for systems where the total number of particles may not be preserved, the number operator is the observable that counts the… Expand
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Related topics

Related topics

12 relations
Basis (linear algebra)Creation and annihilation operatorsEigenstate thermalization hypothesisFock space
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Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2009
Highly Cited
2009
Engineering quantum operations on traveling light beams by multiple photon addition and subtraction
We propose and investigate an optical scheme for probabilistic implementation of an arbitrary single-mode quantum operation that… Expand
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2005
2005
LETTER TO THE EDITOR: Entanglement and tensor product decomposition for two fermions
The problem of the choice of tensor product decomposition in a system of two fermions with the help of Bogoliubov transformations… Expand
Highly Cited
2003
Highly Cited
2003
Generation of entangled coherent states via cross-phase-modulation in a double electromagnetically induced transparency regime
The generation of an entangled coherent state is one of the most important ingredients of quantum information processing using… Expand
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2002
2002
Moyal Formulation of Witten's Star Product in the Fermionic Ghost Sector
In this paper, we recast the fermionic ghost sector of Witten's open bosonic string field theory in the language of… Expand
Highly Cited
1999
Highly Cited
1999
Counting BPS black holes in toroidal Type II string theory
We derive a $U$-duality invariant formula for the degeneracies of BPS multiplets in a D1-D5 system for toroidal compactification… Expand
1995
1995
RIVER3: Simulation of river discharge and sediment transport
Abstract RIVER3 is an ANSI standard FORTRAN-77 numerical model that simulates the discharge and sediment load of rivers. From… Expand
Highly Cited
1989
Highly Cited
1989
The quantum group SUq(2) and a q-analogue of the boson operators
A new realisation of the quantum group SUq(2) is constructed by means of a q-analogue to the Jordan-Schwinger mapping… Expand
1989
1989
Cutoff rate for the M-ary PSK modulation channel with optimal quantum detection
The cutoff rate R/sub 0/ of an optical channel transmitting M-ary phase-shift-keyed coherent states is calculated for a receiver… Expand
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Highly Cited
1985
Highly Cited
1985
The spectrum of the S^5 compactification of the chiral N=2, D=10 supergravity and the unitary supermultiplets of U(2,2/4)
The authors calculate the spectrum of the S5 compactification of the chiral N=2, D=10 supergravity theory. The modes on S5 fall… Expand
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Review
1968
Review
1968
Phase and Angle Variables in Quantum Mechanics
The quantum-mechanical description of phase and angle variables is reviewed, with emphasis on the proper mathematical description… Expand
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