22 research outputs found
Quantum Control of Interacting Bosons in Periodic Optical Lattice
We study the avoided crossings in the dynamics of quantum controlled
excitations for an interacting two-boson system in an optical lattice.
Specifically, we perform numerical simulations of quantum control in this
system where driving pulses connect the undriven stationary states in a manner
characteristic of Stimulated Raman Adiabatic Passage (STIRAP). We demonstrate
that the dynamics of such a transition is affected by chaos induced avoided
crossings, resulting in a loss in coherence of the final outcome in the
adiabatic limit.Comment: Accepted for publication in Physica E. Typo corrections to final
versio
Climate Change Mitigation Through Reduced-Impact Logging and the Hierarchy of Production Forest Management
The proposed hierarchy of production forest management provides modus operandi for forest concessions to move incrementally towards Sustainable Forest Management (SFM) via Reduced-Impact Logging (RIL) and forest certification. Financial benefits are sourced in the âAdditionality Zoneâ, financing the rise in the hierarchy and offsetting prohibitive forest and carbon certification costs. RIL carbon registration components consist of developing credible baseline, additionality and leakage arguments around the business-as-usual scenario through the quantification of historical forest inventory and production records, forest infrastructure records and damage to the residual forest. If conventional harvesting is taken as a baseline, research indicates RIL can potentially reduce emissions by approximately 1â7 tCO2e haâ1yrâ1. The current market price of USD 50 haâ1yrâ1 in additional revenue, well above the estimated USD $3â5 haâ1 in carbon transaction costs. Concessions in Sabah Malaysia demonstrate the financial viability of long-term RIL and certification planning. This may act as a basis for future planned forest management activities involving RIL, carbon and forest certification through the hierarchy of production forest management