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This Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 11 January 2011. It was produced in FY 2010 under the Advanced Aerospace Weapons System Applications (AAWSA) Program. It reviews negative, or sub-vacuum, energy found in squeezed light and the Casimir effect, and explains quantum optical homodyne tomography as a way to measure and map that energy in the lab. It proposes balanced homodyne detector arrays that could help detect anomalous aerospace platforms using engineered spacetime propulsion.
“The Advance”3 pages
UNCLASSIFIED/ ,'1"1!11'- l!ll"l"ll!lllile lal!i! i;nn,~r What has not been experimentally measured yet are the sub-vacuum fluctuations and their corresponding sub-vacuum (negative) energy density inside a Casimir cavity. Casimir cavities produce static, or time-independent, sub-vacuum fluctuations and (negative) energy density. Marecki [S, 6] proposed a modified BHD and computed the two-point function and the associated spectral density for the ground state of the quantum electric field in Casimir geometries, and predicted a position- and frequency- dependent pattern of BHD responses if a device of this type is placed inside a Casimir cavity. He discovered that by exploiting a trick with the subtraction of the output of two balanced photodiodes, it is possible to quantify and map the sub-vacuum fluctuations of the quantum field and its corresponding energy density inside the cavity. His modified BHD design uses the electric field of the TE1 mode of the Casimir cavity as the local oscillator. Marecki also discovered that the sub-vacuum (negative) energy density regions inside a Casimir cavity violate the Quantum Inequalities theorem. We recommend that an experimental program be implemented to test Marecki's modified BHD and his predictions for Casimir geometries. Using this device to also test the efficacy of the Quantum Inequalities theorem is a necessary part of the proposed experimental program. If such experiments are successful, then it will be necessary to follow up by implementing a program to develop and commercialize a portable "modified-Marecki BHD" device for the purpose of detecting, measuring, and spatially mapping the sub-vacuum (negative) energy regions produced by a putative static (or "DC") negative energy generator that would be used for engineering the spacetime surrounding an aerospace platform for propulsion purposes. Because the Casimir effect and its associated negative energy are incredibly feeble, such putative propulsion systems will not involve the use of Casimir cavities to produce a free-space distribution of negative energy surrounding the platform. Therefore, a modified-Marecki BHD will require a high quality laser for the local oscillator and the photodiodes are allowed to be much larger in size. A number of modified-Marecki BHD devices could also be assembled in a sensor array for surveillance and detection of any anomalous aerospace platforms that might use engineered spacetime effects for propulsion. 44 UNCLASSIFIED// I OK orr1e1-.:t ~:!I! 8HLV
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