Efficient Quantum State Tomography for Quantum Information Processing using a two-dimensional Fourier Transform Technique

A new method of quantum state tomography for quantum information processing is described. The method based on two-dimensional Fourier transform technique involves detection of all the off-diagonal elements of the density matrix in a two-dimensional experiment. All the diagonal elements are detected in another one-dimensional experiment. The method is efficient and applicable to a wide range of spin systems. The proposed method is explained using a 2 qubit system and demonstrated by tomographing arbitrary complex density matrices of 2 and 4 qubit systems using simulations.Comment: 11 pages and 2 figure

NMR investigation of contextuality in a quantum harmonic oscillator via pseudospin mapping

Physical potentials are routinely approximated to harmonic potentials so as to analytically solve the system dynamics. Often it is important to know when a quantum harmonic oscillator (QHO) behaves quantum mechanically and when classically. Recently Su et. al. [Phys. Rev. A {\bf 85}, 052126 (2012)] have theoretically shown that QHO exhibits quantum contextuality (QC) for a certain set of pseudospin observables. In this work, we encode the four eigenstates of a QHO onto four Zeeman product states of a pair of spin-1/2 nuclei. Using the techniques of NMR quantum information processing, we then demonstrate the violation of a state-dependent inequality arising from the noncontextual hidden variable model, under specific experimental arrangements. We also experimentally demonstrate the violation of a state-independent inequality by thermal equilibrium states of nuclear spins, thereby assessing their quantumness.Comment: 5 Pages, 3 Figures, context dependency illustrated, error below eq. 5 correcte

Simulation of mirror inversion of quantum states in an XY spin chain using NMR

We report an experimental quantum simulation of unitary dynamics of an XY spin chain with pre-engineered couplings. Using this simulation, we demonstrate the mirror inversion of quantum states, proposed by Albanese et al. [Phys. Rev. Lett. 93, 230502 (2004)]. The experiment is performed with a 5-qubit dipolar coupled spin system using nuclear magnetic resonance techniques. To perform quantum simulation we make use of the recently proposed unitary operator decomposition algorithm of Ajoy et al. [Phys. Rev. A 85, 030303 (2012)] along with numerical pulse optimization techniques. Further, using mirror inversion, we demonstrate that entangled states can be transferred from one end of the chain to the other end. The simulations are implemented with high experimental fidelity, which implies that these kind of simulations may be possible in larger systems.Comment: 9 pages, 6 figure

ANTIOXIDANT, ANTIMICROBIAL, ANTIPROLIFERATIVE ACTIVITIES AND IN SILICO DRUG LIKENESS PREDICTION OF PURIFIED MHH COMPOUND, ISOLATED FROM MILLINGTONIA HORTENSIS LINN

Objective: To investigate the antioxidant, antimicrobial, antiproliferative activities and in silico drug likeness prediction of the MHH compound.Methods: The antioxidant, antimicrobial and antiproliferative activities of the MHH compound have been evaluated by 1,1-Diphenyl-2-picryl hydrazyl (DPPH) and Ferric Reducing Antioxidant Power (FRAP) assays, agar well diffusion assay and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay respectively. The cytotoxicity activity and in silico drug likeness prediction of the MHH compound have been studied.Results: The DPPH radical scavenging activity and the total antioxidant power of the MHH compound were found to be 92.48%±2.06 and 10.698±0.23 mM Fe (II)/g respectively. The antimicrobial activity of MHH compound against Escherichia coli, Klebsiella pneumonia, Proteus vulgaris, Salmonella typhi, Staphylococcus aureus and Streptomyces griseus, Candida albicans, Aspargillus flavus and the zones of inhibition were found to be 16.83 mm, 19.83 mm, 15.23 mm, 16.79 mm, 13.57 mm, 19.65 mm, 18.66 mm and 14.79 mm respectively. The IC50 values of the MHH compound for HeLa and HCT-15 cell lines were found to be 371.92 μg/ml and 112.06 μg/ml respectively. The LC50 value of MHH compound was 218.765µg/ml and 152.78µg/ml which is considered as moderately cytotoxic and toxic respectively when incubated at 24 h and 48 h. The drug likeness and bioactivity scores of the MHH compound were found to be within the range and followed Lipinski's rule.Conclusion: This study concludes that the MHH compound has significant biological activities and can be used as the therapeutic agent.Â

Management Of Subclinical Hypothyroidism Through Ayurveda: A Case Study

Hypothyroidism falls within the domain of dhatvagni mandyajanya vyadhi, which is characterized by impaired metabolism at the Dhatu (tissue) level. A sedentary lifestyle combined with high-calorie foods that require little energy expenditure can be the cause of a disrupted metabolism. This case of subclinical hypothyroidism is selected due to its prevalence in the community. A female patient aged 29 years, a nurse by profession presented with chief complaints of fatigue, weight gain, hair loss, irregular menstrual periods, and puffiness of face for four years. She was diagnosed with subclinical hypothyroidism with increased serum thyroid-stimulating hormone levels.  A treatment plan was planned according to the clinical symptoms of the patient. She was treated with ayurvedic internal medications for a period of six months along with udhvartana treatment externally. The combined action of Ayurveda medicines along with udhvartana showed significant relief in the symptoms clinically along with the reduction in the thyroid hormone levels

A comparative study between single dose intralesional autologous blood and corticosteroid injection in chronic plantar fasciitis-a short term follow-up study

Background: Plantar fasciitis was initially thought to be an acute inflammatory disease, but histology findings show that it is a chronic degenerative process leading to pain at the calcaneal insertion without any inflammation. The diagnosis of plantar fasciitis is mainly based on clinical symptoms, like heel pain and tightness, and diagnostic imaging is not routinely required. Injection of autologous blood can help stimulate a healing response in chronic tendon disorders. Methods: Radiological imaging of the affected foot in lateral view will be taken. 30 patients will be treated with 2 ml of autologous blood with 1 ml lidocaine and another 30 patients with 2 ml of triamcinolone acetonide with 1 ml lidocaine. The main outcomes measured are subjective based on the visual analog scale done pre-injection, 2 weeks, 4 weeks and 12 weeks post injection. Final outcome was measured based on the pain and activity level at 3 months. Results: The corticosteroid group showed an early sharp and then more gradual improvement in pain scores, but autologous blood group had a steady gradual drop in pain. Conclusions: Autologous whole blood and corticosteroid local injection can both be considered as effective methods in the treatment of chronic plantar fasciitis