![arXiv:1302.5365v1 [quant-ph] 21 Feb 2013](http://s1.studyres.com/store/data/002010390_1-09efe73c4824d019b499134a0467e0f3-300x300.png)
arXiv:1302.5365v1 [quant-ph] 21 Feb 2013
... where f is the (σ-coarse-grained) mass density of the configuration (x, q1 , q2 , . . . , qN −1 ) and f 0 is the (σ-coarse-grained) mass density of the configuration (x0 , q1 , q2 , . . . , qN −1 ). The expression (19) is the exact c.o.m. collapse rate. This shows that the coherence of the spread of ...
... where f is the (σ-coarse-grained) mass density of the configuration (x, q1 , q2 , . . . , qN −1 ) and f 0 is the (σ-coarse-grained) mass density of the configuration (x0 , q1 , q2 , . . . , qN −1 ). The expression (19) is the exact c.o.m. collapse rate. This shows that the coherence of the spread of ...
metal
... 2. What is the distribution of the non-equilibrium steady state? Quantum random walk, suppression of tunneling ...
... 2. What is the distribution of the non-equilibrium steady state? Quantum random walk, suppression of tunneling ...
Non-Gaussianity of quantum states: an experimental test on single
... the von Neumann entropy of τ and the von Neumann entropy of %. In Ref. [42] it has been shown that this measure is non zero only for non-Gaussian states. It is also additive under tensor product, invariant under unitary Gaussian operations, and in general it does not increase under generic completel ...
... the von Neumann entropy of τ and the von Neumann entropy of %. In Ref. [42] it has been shown that this measure is non zero only for non-Gaussian states. It is also additive under tensor product, invariant under unitary Gaussian operations, and in general it does not increase under generic completel ...
Y-system
... • We can solve Hirota equations in terms of differential forms of functions Q(u). Solution combines dynamics of representations Gromov,V.K.,Leurent,Volin and the quantum fusion. Construction for gl(N): ...
... • We can solve Hirota equations in terms of differential forms of functions Q(u). Solution combines dynamics of representations Gromov,V.K.,Leurent,Volin and the quantum fusion. Construction for gl(N): ...
the holographic principle in biological development and quantum
... A: Morphogenetic models exhibit bifurcation points, where the system shifts suddenly from one form to a quite different form. Q: I feel uncomfortable with this idea of sudden jumps. A: You feel happy about the sudden jumps in quantum physics, don’t you? Q: But how do you decide between all the diffe ...
... A: Morphogenetic models exhibit bifurcation points, where the system shifts suddenly from one form to a quite different form. Q: I feel uncomfortable with this idea of sudden jumps. A: You feel happy about the sudden jumps in quantum physics, don’t you? Q: But how do you decide between all the diffe ...
Universally valid reformulation of the Heisenberg uncertainty
... The above relation shows that the Heisenberg noisedisturbance uncertainty relation, Eq. 共2兲, holds if the correlation term 兩 具 关 N(A),B in 兴 典 ⫹ 具 关 A in ,D(B) 兴 典 兩 vanishes. In order to characterize a class of measurements satisfying Eq. 共2兲, we introduce the following definition. The measuring in ...
... The above relation shows that the Heisenberg noisedisturbance uncertainty relation, Eq. 共2兲, holds if the correlation term 兩 具 关 N(A),B in 兴 典 ⫹ 具 关 A in ,D(B) 兴 典 兩 vanishes. In order to characterize a class of measurements satisfying Eq. 共2兲, we introduce the following definition. The measuring in ...
CS286.2 Lectures 5-6: Introduction to Hamiltonian Complexity, QMA
... formula. Intuitively, Hj can be thought as the energy or penalty that is imposed if the clause Cj is not satisfied by a setting of the variables. For every clause Cj = x a ∨ xb ∨ xc , the Hamiltonian Hj = |0ih0| a ⊗ |1ih1|b ⊗ |0ih0|c ⊗ I evaluates to 1 iff the constraint Cj isn’t satisfied. The comp ...
... formula. Intuitively, Hj can be thought as the energy or penalty that is imposed if the clause Cj is not satisfied by a setting of the variables. For every clause Cj = x a ∨ xb ∨ xc , the Hamiltonian Hj = |0ih0| a ⊗ |1ih1|b ⊗ |0ih0|c ⊗ I evaluates to 1 iff the constraint Cj isn’t satisfied. The comp ...
Quantum fluctuation relations: Foundations and applications
... Eq. (2). Bochkov and Kuzovlev (1977, 1979, 1981a, 1981b) proved Eq. (14) for classical systems. Their derivation will be reviewed in the next section. The quantum version, Eq. (55), was not reported until recently (Andrieux and Gaspard, 2008). In Sec. III.C we discuss the fundamental obstacles that ...
... Eq. (2). Bochkov and Kuzovlev (1977, 1979, 1981a, 1981b) proved Eq. (14) for classical systems. Their derivation will be reviewed in the next section. The quantum version, Eq. (55), was not reported until recently (Andrieux and Gaspard, 2008). In Sec. III.C we discuss the fundamental obstacles that ...
Computational complexity in electronic structure PERSPECTIVE
... stated that Hartree–Fock has a runtime which scales as the third power of the number of basis functions. This scaling disregards difficult instances of the calculation where Hartree–Fock does not converge. Such instances require manual intervention to tweak the algorithm used or adjust the convergence ...
... stated that Hartree–Fock has a runtime which scales as the third power of the number of basis functions. This scaling disregards difficult instances of the calculation where Hartree–Fock does not converge. Such instances require manual intervention to tweak the algorithm used or adjust the convergence ...
paper - Center for Ultracold Atoms
... x–y plane. Although our atomic lens was far from ideal, the experiment shows that it is possible to modify the HBT signal by optical means. To conclude, we emphasize that we have used samples of neutral atoms at a moderate density in which interactions do not play any significant role. Care was take ...
... x–y plane. Although our atomic lens was far from ideal, the experiment shows that it is possible to modify the HBT signal by optical means. To conclude, we emphasize that we have used samples of neutral atoms at a moderate density in which interactions do not play any significant role. Care was take ...
Codeword stabilized quantum codes
... the other two, where the Pauli matrices negated are Z, Y, X, X, Y, respectively. This increases the size of the symmetry group to 3840. This group acts as the permutation group S5 on the qubits. This is the full group of symmetries of the code. That is, the full subgroup of the semidirect product of ...
... the other two, where the Pauli matrices negated are Z, Y, X, X, Y, respectively. This increases the size of the symmetry group to 3840. This group acts as the permutation group S5 on the qubits. This is the full group of symmetries of the code. That is, the full subgroup of the semidirect product of ...
Full text
... the classic phase transition disappears when the A2 -term is also included in the Dicke Hamiltonian. It is also worth mentioning that in Ref. [13] a simple Green-function method was introduced in order to study the critical behavior of the Dicke model with external fields. And within current solid-s ...
... the classic phase transition disappears when the A2 -term is also included in the Dicke Hamiltonian. It is also worth mentioning that in Ref. [13] a simple Green-function method was introduced in order to study the critical behavior of the Dicke model with external fields. And within current solid-s ...
Get the file - Eng
... energy, impulse, but they are not used in their normal sense, as it was already stated. They are rather some reflections of the same terms employed by the macroscopic level physics, having similar meanings, but all were projected and adapted to the granular level. As we know for sure that there is m ...
... energy, impulse, but they are not used in their normal sense, as it was already stated. They are rather some reflections of the same terms employed by the macroscopic level physics, having similar meanings, but all were projected and adapted to the granular level. As we know for sure that there is m ...
Quantum telecommunication with atomic ensembles
... rate decreases exponentially with distance. The concept of a quantum repeater was proposed to overcome this limitation and enable quantum communication over longer distances.7,8 The idea is to insert quantum memory elements into the quantum channel every attenuation length or so and create qubits in ...
... rate decreases exponentially with distance. The concept of a quantum repeater was proposed to overcome this limitation and enable quantum communication over longer distances.7,8 The idea is to insert quantum memory elements into the quantum channel every attenuation length or so and create qubits in ...
Introduction to Loop Quantum Gravity and Spin Foams
... coordinates. In general relativity this property of the world is confronted head on: only relational (coordinate-independent, or diffeomorphism invariant) statements are meaningful (see discussion about the hole argument in 4 ). There are no simple family of observers to define physical coordinates ...
... coordinates. In general relativity this property of the world is confronted head on: only relational (coordinate-independent, or diffeomorphism invariant) statements are meaningful (see discussion about the hole argument in 4 ). There are no simple family of observers to define physical coordinates ...