27 citations · 77 across the 9 of their papers we have counts for
9 papers
Bridging Quantum and Semiclassical Volume: A Numerical Study of Coherent State Matrix Elements in Loop Quantum Gravity
Haida Li, Hongguang Liu
In Loop Quantum Gravity, the quantum action of the volume operator is crucial in understanding quantum dynamics. In this work, we implement a generalized numerical algorithm that c…
Beyond Expectation Values: Generalized Semiclassical Expansions for Matrix Elements of Gauge Coherent States
Haida Li, Hongguang Liu
We derive an asymptotic expansion for off-diagonal coherent-state matrix elements of non-polynomial operators in gauge theories admitting holomorphic coherent-state representations…
Deparametrization and quantization of scalar-tensor gravity and its cosmological model
Faqiang Yuan, Haida Li, Shengzhi Li +1
The degree of freedom of the scalar field in scalar-tensor gravity is employed as "time" to deparametrize the Hamiltonian constraint of the theory. The deparametrized system is the…
Properties of 4D spinfoam quantum geometry: Results from next-to-leading order spinfoam large- asymptotics of 1-5 Pachner move
Haida Li, Muxin Han, Hongguang Liu +2
This paper proposes several criteria to probe the non-trivialities of 4-dimensional geometry that impact spinfoam amplitude. These criteria include the standard deviation of 4-volu…
Connection Dynamics of Reduced 5-dimensional Kaluza-Klein Theory and Its Deparametrization
Haida Li, Shengzhi Li, Yongge Ma
The connection dynamics of the 5-dimensional Kaluza-Klein theory reduced on 4-dimensional spacetime is obtained by performing the Hamiltonian analysis and canonical transformations…
Manifestly Gauge-Invariant Cosmological Perturbation Theory from Full Loop Quantum Gravity
Muxin Han, Haida Li, Hongguang Liu
We apply the full theory of Loop Quantum Gravity (LQG) to cosmology and present a top-down derivation of gauge-invariant cosmological perturbation theory from quantum gravity. The…
Entropy of black holes with arbitrary shapes in loop quantum gravity
Shupeng Song, Haida Li, Yongge Ma +1
The quasi-local notion of an isolated horizon is employed to study the entropy of black holes without any particular symmetry in loop quantum gravity. The idea of characterizing th…
Bouncing evolution in a model of loop quantum gravity
Cong Zhang, Jerzy Lewandowski, Haida Li +1
To understand the dynamics of loop quantum gravity, the deparametrized model of gravity coupled to a scalar field is studied in a simple case, where the graph underlying the spin n…
Distinguishing f(R) theories from general relativity by gravitational lensing effect
Hongguang Liu, Xin Wang, Haida Li +1
The post-Newtonian formulation of a general class of f(R) theories is set up to 3rd order approximation. It turns out that the information of a specific form of f(R) gravity is enc…