Publications by authors named "Yazhi Niu"
Article Synopsis
- - The weak-value-amplification (WVA) scheme in precision metrology utilizes quantum destructive interference from pre- and post-selection states, while the joint WVA (JWVA) method offers even greater sensitivity, despite some technical challenges like misalignment errors.
- - This work explores the difference-signal amplification (DSA) technique as a classical alternative to JWVA, demonstrating that comparable amplification effects can be achieved after erasing quantum coherence.
- - A simplified expression for the amplified signal is developed along with a precision characterization, and the research discusses implementing post-selection in classical mixed states, suggesting practical applications for the DSA technique.
