High-speed long-range quantum communication requires combining frequency multiplexed photonic channels with quantum memories. We experimentally demonstrate an integrated quantum frequency conversion protocol that can convert between wavelength division multiplexing channels in the telecom range with an efficiency of 55±8% and a noise subtracted Hong-Ou-Mandel (HOM) dip visibility of 84.5%. This protocol is based on a cascaded second order nonlinear interaction and can be used to interface a broad spectrum of frequencies with narrowband quantum memories, or alternatively as a quantum optical transponder, efficiently interfacing different regions of a frequency-multiplexed spectrum.
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http://dx.doi.org/10.1103/PhysRevLett.127.023602 | DOI Listing |
Am J Sports Med
January 2025
Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Background: Arthroscopic labral repair of the hip is successfully performed with increasing frequency using either knotless or knotted suture anchors, each with its own risks and benefits.
Purpose: To examine biomechanical and clinical outcomes for labral repair of the hip based on the use of knotted or knotless suture anchors.
Study Design: Systematic review; Level of evidence, 4.
Sensors (Basel)
January 2025
Department of Electrical Engineering, Technical University Eindhoven, 5612 AZ Eindhoven, The Netherlands.
The effects of mechanical vibrations on control system stability could be significant in control systems designed on the assumption of rigid-body dynamics, such as launch vehicles. Vibrational loads can also cause damage to launch vehicles due to fatigue or excitation of structural resonances. This paper investigates a method to control structural vibrations in real time using a finite number of strain measurements from a fiber Bragg grating (FBG) sensor array.
View Article and Find Full Text PDFSensors (Basel)
December 2024
College of Computer Science and Technology, Xi'an University of Science and Technology, Xi'an 710054, China.
Photovoltaic arrays are exposed to outdoor conditions year-round, leading to degradation, cracks, open circuits, and other faults. Hence, the establishment of an effective fault diagnosis system for photovoltaic arrays is of paramount importance. However, existing fault diagnosis methods often trade off between high accuracy and localization.
View Article and Find Full Text PDFJ Am Acad Orthop Surg Glob Res Rev
November 2024
From the Department of Orthopaedic Surgery and Rehabilitation Loyola University Health System, Maywood, IL (Dr. Grayson, Dr. Eikani, and Dr. Brown); and the Loyola University Chicago Stritch School of Medicine, Maywood, IL (Ms. Benson and Mr. Jozefowski).
Background: Conversion total hip arthroplasty (THA) is associated with higher rates of complications compared with primary THA, with prior surgical fixation of fractures in the ipsilateral hip shown to further increase these rates. There is a scarcity of literature on the effect of timing of conversion THA on complication rates. In this study, we evaluated early (≤6 months of index surgery) and late (>6 months of index surgery) conversion to THA following prior fixation of the proximal femur or acetabulum.
View Article and Find Full Text PDFJ Cancer Res Ther
December 2024
Department of Radiotherapy, Shandong Second Provincial General Hospital, Jinan, Shandong, People's Republic of China.
Purpose: To investigate and compare the feasibility, safety, and clinical outcomes of antegrade and retrograde laparoscopic bilateral inguinal lymphadenectomy for penile cancer.
Methods: We retrospectively analyzed the clinical data of 32 patients with penile cancer admitted between 2018 and 2022. Among them, 17 patients underwent antegrade laparoscopic inguinal lymphadenectomy (ALIL group) and 15 underwent retrograde laparoscopic inguinal lymphadenectomy (RLIL group).
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