In this work we analyze the characteristics of quantum entangleinent of the Dirac field in noninertial reference frames in the context of a new type pseudo-pure state, which is composed of the Bell states. This will h...In this work we analyze the characteristics of quantum entangleinent of the Dirac field in noninertial reference frames in the context of a new type pseudo-pure state, which is composed of the Bell states. This will help us to understand the relationship between the relativity and quantum information theory. Some states will be changed from entangled states into separable ones around the critical value F = 1/4, but there is no such a critical value for the variable y related to acceleration a. We find that the negativity Nas (ρ^TA AB 1) increases with F but decreases with the variable y、while the variation of the negativity Nb1b11(ρ^TB1 B1B11)is opposite to that of the negativity N AB1(ρ^TA AB1). We also study the von Neumann entropies S(ρAB1) and S(ρB1B11)、We find that the S(ρAB1) increases with variable y but S(ρB1B11) is independent of it. However, both S(ρAB1) and S(ρB1B11) first decreases with F and then increases with it. The concurrences C(ρAB1) and C(ρB1B11) are also discussed. We find that the former decreases with y while the latter increases with y but both of them first increase with F and then decrease with it.展开更多
The main research purpose of this paper is to acquire a series of designed concept of"affordable housing"in key geographical areas of East China through the development of innovative,economical,flexible,repr...The main research purpose of this paper is to acquire a series of designed concept of"affordable housing"in key geographical areas of East China through the development of innovative,economical,flexible,reproducible and affordable residential houses using intensive steel solutions.Toward this goal,both the residential housing conditions and the development of steel residential building in China are widely investigated.Affordable housing in China is then,based on the investigation,defined as green humanized multi-storey housing comprised of medium-small type dwellings whose construction cost is not much higher than that of traditional reinforced concrete buildings and the maintenance cost is low.Taking this definition as a guiding ideology,detailed architectural and structural design of a steel affordable housing model in terms of a collective housing form with repeatable living units has been carried out.Comparisons of project cost and energy consumption between the designed steel residential housing and the corresponding reinforced concrete building show that the former is not more expensive and consumes less energy than the latter.展开更多
文摘In this work we analyze the characteristics of quantum entangleinent of the Dirac field in noninertial reference frames in the context of a new type pseudo-pure state, which is composed of the Bell states. This will help us to understand the relationship between the relativity and quantum information theory. Some states will be changed from entangled states into separable ones around the critical value F = 1/4, but there is no such a critical value for the variable y related to acceleration a. We find that the negativity Nas (ρ^TA AB 1) increases with F but decreases with the variable y、while the variation of the negativity Nb1b11(ρ^TB1 B1B11)is opposite to that of the negativity N AB1(ρ^TA AB1). We also study the von Neumann entropies S(ρAB1) and S(ρB1B11)、We find that the S(ρAB1) increases with variable y but S(ρB1B11) is independent of it. However, both S(ρAB1) and S(ρB1B11) first decreases with F and then increases with it. The concurrences C(ρAB1) and C(ρB1B11) are also discussed. We find that the former decreases with y while the latter increases with y but both of them first increase with F and then decrease with it.
基金The research was sponsored by ArcelorMittal Liege Research.
文摘The main research purpose of this paper is to acquire a series of designed concept of"affordable housing"in key geographical areas of East China through the development of innovative,economical,flexible,reproducible and affordable residential houses using intensive steel solutions.Toward this goal,both the residential housing conditions and the development of steel residential building in China are widely investigated.Affordable housing in China is then,based on the investigation,defined as green humanized multi-storey housing comprised of medium-small type dwellings whose construction cost is not much higher than that of traditional reinforced concrete buildings and the maintenance cost is low.Taking this definition as a guiding ideology,detailed architectural and structural design of a steel affordable housing model in terms of a collective housing form with repeatable living units has been carried out.Comparisons of project cost and energy consumption between the designed steel residential housing and the corresponding reinforced concrete building show that the former is not more expensive and consumes less energy than the latter.
