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… (More)
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2011
2011
Recently, gravity duals for certain Galilean-invariant conformal field theories have been constructed. In this paper, we point… (More)
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2006
2006
The proposed research problem was the construction of a new hypercomputation models [5, 29] based on quantum computation. In… (More)
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2002
2002
  • S. S. Mizrahi, V. V. Dodonov
  • 2002
The non-symmetric nature of the boson ‘destruction’ operator â and its ‘creation’ partner â is made apparent by applying them to… (More)
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2001
2001
A proof is given that an invertible and a unitary operator can be used to reproduce the effect of a q-deformed commutator of… (More)
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1999
1999
  • Eric Bergshoeff, Mees de Roo, Bert Janssen, Tomas Ortin
  • 1999
We consider two inequivalent truncations of the super D9-brane: the "Heterotic" and the 'q'ype I" truncation. Both of them lead… (More)
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1998
1998
The representations of the Heisenberg algebra in Krein spaces, more generally in weakly complete inner product spaces, are… (More)
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1996
1996
We show how to construct SO(4) invariant functions for strongly correlated Fermi systems on lattices of finite sizes. We… (More)
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1995
1995
  • Ciprian Dariescu, Shinji Hamamoto, Marina-Aura Dariescu
  • 1995
We present a toy model approach to the canonical non-perturbative quantization of the spatially-flat Robertson-Walker Universes… (More)
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1994
1994
  • 1994
Integrable open-boundary conditions for the supersymmetric t-J model. The quantum group invariant case. Abstract We consider… (More)
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1989
1989
The cutoff rate R, of an optical channel transmitting M-ary phase-shift-keyed coherent states is calculated for a receiver using… (More)
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