5 papers
Spin-dependent electron transfer through a ring-wire coupled junction: Role of in-plane electric field
Prabhab Patra, Santanu K. Maiti
We study spin-dependent transport in a hybrid magnetic system, where a non-magnetic (NM) wire is coupled to a side-attached antiferromagnetic (AFM) mesoscopic ring, placed between…
Truthful Reverse Auctions for Adaptive Selection via Contextual Multi-Armed Bandits
Pronoy Patra, Sankarshan Damle, Manisha Padala +1
We study the problem of selecting large language models (LLMs) for user queries in settings where multiple LLM providers submit the cost of solving a query. From the users' perspec…
New perspective on symmetry breaking in a clean antiferromagnetic chain: Spin-selective transport and NDR phenomenon
Prabhab Patra, Santanu K. Maiti
The primary requirement for achieving spin-selective electron transfer in a nanojunction possessing a magnetic system with zero net magnetization is to break the symmetry between t…
Nonreciprocal Blume-Capel Model with Antisymmetric Single-Ion Anisotropies
Arjun R, Pratyush Prakash Patra, A. V. Anil Kumar
We investigate the interplay between nonreciprocal interactions and chemical-potential imbalance in a two-species nonreciprocal Blume-Capel model. Combining a systematic mean-field…
Contextuality sans incompatibility in the simplest scenario: Communication supremacy of a qubit
Partha Patra, Sumit Mukherjee, A. K. Pan
Conventional wisdom asserts that measurement incompatibility is necessary for revealing the non-locality and contextuality. In contrast, a recent work [Phys. Rev. Lett. 130, 230201…