9 citations · 9 across the 6 of their papers we have counts for
6 papers
Discrete Time Crystals in Noninteracting Dissipative Systems
Gourab Das, Saptarshi Saha, Rangeet Bhattacharyya
Many-body quantum systems, under suitable conditions, exhibit time-translation symmetry breaking and settle in a discrete time crystalline (DTC) phase -- an out-of-equilibrium quan…
Determination of Fluctuation correlation time in solid-state Nuclear Magnetic Resonance
Saptarshi Saha, Rangeet Bhattacharyya
Solid-state NMR provides a wide variety of experimental techniques to detect and analyze a material's chemical and physical environment. Here, we offer a theoretical demonstration…
Emergence of superradiance in dissipative dipolar-coupled spin systems
Saptarshi Saha, Yeshma Ibrahim, Rangeet Bhattacharyya
In the superradiance phenomenon, a collection of non-interacting atoms exhibits collective dissipation due to interaction with a common radiation field, resulting in a non-monotoni…
Prethermalization in an open quantum system coupled to a spatially correlated Bosonic bath
Saptarshi Saha, Rangeet Bhattacharyya
A nearly-integrable isolated quantum many-body system reaches a quasi-stationary prethermal state before a late thermalization. Here, we revisit a particular example in the setting…
Emergence and stability of discrete time-crystalline phases in open quantum systems
Saptarshi Saha, Rangeet Bhattacharyya
Here we provide a theoretical framework to analyze discrete time-crystalline phases (DTC) in open quantum many-body systems. As a particular realization, we choose a quantum many-b…
Cascaded dynamics of a periodically driven dissipative dipolar system
Saptarshi Saha, Rangeet Bhattacharyya
Recent experiments show that periodic drives on dipolar systems lead to long-lived prethermal states. These systems are weakly coupled to the environment and reach prethermal state…