We study the traffic of particles on complex networks under constraints.The constraints we propose are the different interactions between particles and the limited capability of node holding particles.We give the gran...We study the traffic of particles on complex networks under constraints.The constraints we propose are the different interactions between particles and the limited capability of node holding particles.We give the grand partition function of the system and find the distributions of particles at the dynamically balanced point.Then,we investigate the internal relations among the theories of classical statistics,quantum statistics and the zero range process.Finally,we find the finite temperature of Bose–Einstein condensation.Numerical results verify our theoretical expectations.展开更多
After incorporating the inverse volume modifications both in the gravitational and matter part in the improved framework of LQC,we find that the inverse volume modification can decrease the bouncing energy scale,and t...After incorporating the inverse volume modifications both in the gravitational and matter part in the improved framework of LQC,we find that the inverse volume modification can decrease the bouncing energy scale,and the presence of nonsingular bounce is generic.For the backward evolution in the expanding branch,in terms of different initial states,the evolution trajectories classify into two classes.One class with larger initial energy density leads to the occurrence of bounce in the region a>a_(ch)where ash marks the different inverse volume modification region.The other class with smaller initial energy density evolves back into the region a<a_(ch).In this region,both the energy density for the scalar field and the bouncing energy scale decrease with the backward evolution.The bounce is present when the bouncing energy scale decreases to be equal to the energy density of the scalar field.展开更多
A new formulation of the Bekenstein-Smarr formula of a Kerr-Newman black hole is given. The re-defined black hole entropy continuously goes to zero as the black hole temperature approaches absolute zero, which satisfi...A new formulation of the Bekenstein-Smarr formula of a Kerr-Newman black hole is given. The re-defined black hole entropy continuously goes to zero as the black hole temperature approaches absolute zero, which satisfies the Nernst theorem. Our new result suggests that the Kerr-Newman black hole should be regarded as a composite thermodynamic system composed of two sub-systems, its outer horizon and its inner horizon. There exists a new quantum thermal effect. “Hawking absorption”, near the inner horizon of the black hole.展开更多
In this paper,we give an Euclidean wormhole solution in the Brans-Dicke theory with cosmological constant.We show that this wormhole is unlike all the others,its configuration is non-static.The throat radius of the wo...In this paper,we give an Euclidean wormhole solution in the Brans-Dicke theory with cosmological constant.We show that this wormhole is unlike all the others,its configuration is non-static.The throat radius of the wormhole will increase as Euclidan cosmic time increases.展开更多
基金by the National Natural Science Foundation of China under Grant No 10875012the Fundamental Research Funds for the Central Universities.
文摘We study the traffic of particles on complex networks under constraints.The constraints we propose are the different interactions between particles and the limited capability of node holding particles.We give the grand partition function of the system and find the distributions of particles at the dynamically balanced point.Then,we investigate the internal relations among the theories of classical statistics,quantum statistics and the zero range process.Finally,we find the finite temperature of Bose–Einstein condensation.Numerical results verify our theoretical expectations.
基金Supported by the National Natural Science Foundation of China under Grant Nos 11047189 and 10875012.
文摘After incorporating the inverse volume modifications both in the gravitational and matter part in the improved framework of LQC,we find that the inverse volume modification can decrease the bouncing energy scale,and the presence of nonsingular bounce is generic.For the backward evolution in the expanding branch,in terms of different initial states,the evolution trajectories classify into two classes.One class with larger initial energy density leads to the occurrence of bounce in the region a>a_(ch)where ash marks the different inverse volume modification region.The other class with smaller initial energy density evolves back into the region a<a_(ch).In this region,both the energy density for the scalar field and the bouncing energy scale decrease with the backward evolution.The bounce is present when the bouncing energy scale decreases to be equal to the energy density of the scalar field.
基金the National Natural Science Foundation of China under Grant No.19773003。
文摘A new formulation of the Bekenstein-Smarr formula of a Kerr-Newman black hole is given. The re-defined black hole entropy continuously goes to zero as the black hole temperature approaches absolute zero, which satisfies the Nernst theorem. Our new result suggests that the Kerr-Newman black hole should be regarded as a composite thermodynamic system composed of two sub-systems, its outer horizon and its inner horizon. There exists a new quantum thermal effect. “Hawking absorption”, near the inner horizon of the black hole.
文摘In this paper,we give an Euclidean wormhole solution in the Brans-Dicke theory with cosmological constant.We show that this wormhole is unlike all the others,its configuration is non-static.The throat radius of the wormhole will increase as Euclidan cosmic time increases.
