搜索结果: 16-30 共查到“物理学 bosons”相关记录42条 . 查询时间(0.096 秒)
Interaction and filling induced quantum phases of dual Mott insulators of bosons and fermions
Interaction quantum phases of dual Mott insulators bosons fermions
2010/11/24
Many-body effects are at the very heart of diverse phenomena found in condensed-matter physics.
One striking example is the Mott insulator phase where conductivity is suppressed as a result
of a str...
Non-equilibrium time evolution of bosons from the functional renormalization group
Non-equilibrium time evolution of bosons functional renormalization group
2010/11/25
We develop a functional renormalization group approach to obtain the time evolution of the
momentum distribution function of interacting bosons out of equilibrium. Using an external outscattering rat...
Superposition states of ultracold bosons in rotating rings with a weak potential barrier
Superposition states ultracold bosons weak potential barrier
2010/11/23
We study ultracold bosons in a one-dimensional rotating ring lattice with a weak potential barrier well below unit filling. Due to the potential barrier the eigenstates are superpositions of different...
Infrared behavior in systems with a broken continuous symmetry: classical O(N) model vs interacting bosons
Infrared behavior in systems broken continuous symmetry interacting bosons
2010/11/23
In systems with a spontaneously broken continuous symmetry, the perturbative loop expansion
is plagued with infrared divergences due to the coupling between transverse and longitudinal fluctuations.A...
Dynamic Stimulation of Quantum Coherence in Lattice Bosons
Dynamic Stimulation Quantum Coherence in Lattice Bosons
2010/11/19
Thermal fluctuations tend to destroy long-range phase correlations. Consequently, bosons in a lattice will undergo a transition from a phase-coherent superfluid as the temperature rises. Contrary to c...
Perturbative correction to the ground state properties of one-dimensional strongly interacting bosons in a harmonic trap
Perturbative correction ground state properties harmonic trap
2010/11/19
We calculate the rst order perturbation correction to the ground state energy and chemical
potential of a harmonically trapped boson gas with contact interactions about the in nite repulsion Tonks-G...
Experimental realities refuting the existence of p=0 condensate in a system of interacting bosons : II. Spectroscopy of embedded molecules
molecular-rotations helium-clusters BEC Ground-state bosons helium-4
2010/11/22
Experimental observation of superfluidity in a microscopic cluster, M : (4He)x, of a
molecule (M) and x number of 4He atoms (with x ranging from 1 to many) is qualitatively
analyzed. It concludes th...
Experimental realities refuting existence of p=0 condensate in a system of interacting bosons : I. Electron bubble
BEC bosons electron-bubble He-4
2010/11/18
Physical reality of the existence of electron bubble in liquid 4He (or 3He) renders
a clear experimental evidence for a quantum particle (in an interacting environment as
seen by electron in liquid ...
Perturbative correction to the ground state properties of one-dimensional strongly interacting bosons in a harmonic trap
ground state properties bosons
2010/11/17
We calculate the first order perturbation correction to the ground state energy and chemical potential of a harmonically trapped boson gas with contact interactions about the infinite repulsion Tonks...
Search for neutral Higgs bosons in the multi-b-jet topology in 5.2fb-1 of ppbar collisions at sqrt(s)=1.96 TeV
Search for neutral Higgs bosons multi-b-jet topology 5.2fb-1 of ppbar collisions
2011/1/4
Data recorded by the D0 experiment at the Fermilab Tevatron Collider are analyzed to search
for neutral Higgs bosons produced in association with b quarks.
Variational cluster approach for strongly-correlated lattice bosons in the superfluid phase
Variational cluster approach strongly-correlated lattice bosons the superfluid phase
2010/11/11
We extend the variational cluster approach to deal with strongly-correlated lattice bosons in the superfluid phase. To this end, we reformulate the approach within a pseudoparticle formalism, whereby ...
Crystalline phase for one-dimensional ultra-cold atomic bosons
Crystalline phase one-dimensional ultra-cold atomic bosons
2010/10/27
We study cold atomic gases with a contact interaction and confined into one-dimension. Crossing
the confinement induced resonance the correlation between the bosons increases, and introduces an effec...
Comment on "Entanglement of two interacting bosons in a two-dimensional isotropic harmonic trap" [Phys. Lett. A 373 (2009) 3833]
Schmidt decomposition
2010/10/18
The correct form of the Schmidt decomposition of the stationary wave functions for a system of two interacting particles trapped in a two-dimensional harmonic potential is given
Statistically induced Phase Transitions: Turning Bosons smoothly via Anyons into Fermions
Phase Transitions Fermions
2010/10/27
Anyons { particles carrying fractional statistics that interpolate between bosons and fermions { have been conjectured to exist in low dimensional systems. In the context of the fractional quantum Hal...
A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb-1 of data collected by the ALEPH experiment at cent...