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Creation of Two-Mode Squeezed States in Atomic Mechanical Oscillators
Wui Seng Leong1, Mingjie Xin1, Zilong Chen1
1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
Physical Review Letters
|November 24, 2023
Summary
Researchers created two-mode squeezed states using trapped atoms in an optical lattice. This breakthrough advances continuous-variable quantum computing and quantum sensing applications.
Area of Science:
- Quantum physics
- Quantum information science
- Atomic physics
Background:
- Two-mode squeezed states are vital for quantum information processing and metrology.
- Continuous-variable quantum computing using trapped atoms shows promise for hybrid quantum systems.
Purpose of the Study:
- To experimentally demonstrate two-mode squeezed states using atoms in a two-dimensional optical lattice.
- To explore the potential of this platform for quantum information and sensing.
Main Methods:
- Atoms in a 2D optical lattice were used as quantum registers.
- Controlled projection conditioned on relative phase generated the states.
- Sudden frequency jumps created individual squeezing.
Main Results:
- Successfully generated two-mode squeezed states.
- Validated states using entanglement steering and Fock state analysis.
- Achieved a generation rate within a fraction of the oscillation frequency.
Conclusions:
- This work demonstrates a novel method for creating two-mode squeezed states in a hybrid atom-based system.
- The results pave the way for advanced quantum sensing and continuous-variable quantum information processing.
- The technique is applicable to other mechanical oscillators for quantum applications.
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